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1Back to top Go down   Cafe Racer K100RS Build & Support Empty Cafe Racer K100RS Build & Support Sat Oct 10, 2015 1:55 pm

Dachwaton

Dachwaton
active member
active member
Hi Guys,
So ive been interested in motorbikes and cars for a long time and have been enjoying the cafe racer scene that seems to be getting more popular recently.
Friends and I often talk talk about bikes we like, don't like etc and that we would like to build a cafe racer.
So I thought why keep talking about it and why not do it, im really not very mechanical so I think it will be good to go outside of my comfort zone and try something new.
Ill probably ask a load of stupid questions but please be patient with me and help me out eh, in return ill try to keep this up-to-date with developments and new ideas Shocked


So the bike is a 1984 BMW K100RS with 27000 miles on the clock. I wanted something a little different that you don't see every day but with a good heritage and something that is pretty reliable. I specifically wanted a 1984 model so that it was made the same year I was BORN.


I found this little great looking machine, its had 3 owners and is in great condition with no rust, corrosion etc. For my first cafe racer I wanted something really clean to start with and im pretty happy with it at the moment.
Cafe Racer K100RS Build & Support WP_20150930_18_00_54_Pro_zpsynoz5vdr

Cafe Racer K100RS Build & Support WP_20150930_18_00_18_Pro%202_zps6bri4sxc

    

2Back to top Go down   Cafe Racer K100RS Build & Support Empty Developments So Far Sat Oct 10, 2015 2:39 pm

Dachwaton

Dachwaton
active member
active member
So ive been slowly stripping down the bike of fairings, crash bars etc.
Ill sell some of the fairings etc later so if anyone is interested let me know and ill message you when im ready to sell.
Cafe Racer K100RS Build & Support WP_20151002_15_20_11_Pro%202_zpsuvqwbp93

Iv'e already got my first question for you guys, the bike had some chrome engine protectors which I have removed. The bolts on the engine in the image below are sticking out and don't look very nice but were used to bolt the protector into. Do I need to order new bolts to replace these?
Cafe Racer K100RS Build & Support WP_20151002_16_56_16_Pro%202_zpsprsvebio

With a few bits taken off the bike, I can start to see the shape taking place. I want to do something with the air intake box, I know the standard one works perfectly but its such a huge part of the bike and I wanted something a little different looks wise. There are a couple of conversions that have done this which I am taking inspiration from.
Cafe Racer K100RS Build & Support WP_20151004_14_39_10_Pro%202_zpsblglpct1
Cafe Racer K100RS Build & Support WP_20151004_14_39_18_Pro%202_zpsnaija83x
Cafe Racer K100RS Build & Support WP_20151004_14_38_08_Pro%202_zpsfplaecfv
These are a couple of others I found:
Cafe Racer K100RS Build & Support 30052ba1_zpsmlkm2y1m
Cafe Racer K100RS Build & Support C__Data_Users_DefApps_AppData_INTERNETEXPLORER_Temp_Saved%20Images_dsc07020_zpseu9ybued

    

Dai

Dai
Life time member
Life time member
Those are the shock absorbing rubbers for the crashbars - early K's didn't have them and a slide down the road frequently resulted in the sump being smashed off. A 22mm spanner should get those off - don't forget there's three either side.

I'll take the crashbars off your hands if you want to sell them? PM me, if so.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

robmack

robmack
Life time member
Life time member
Shame to tear into a pristine example of an 84 RS like that.


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
http://k75retro.blogspot.ca/
    

5Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Sat Oct 10, 2015 10:13 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
I am always in a quandary over custom builds. On the one hand I enjoy a creative build that's groundbreaking, inspired, different and as I'm a bit of a Teuton from a previous life, practical, ie, I like front mudguards on bikes - they work and look good to me.

On the other hand, when I was inspired to build my '89 K100 Big Block with K1200RS motor, I purchased nearly all of the parts from wreckers and eBay so as not to have to dismantle a running, rideable piece of Beemer history.

As far as the airbox is concerned, there's heaps of good ideas about, as you can see. My favourite is Scheffers (sp?) from Holland. Just remember that in order to make the bike go (8V K100), you must have the AFM intact. No K&N pods on top of the throttle bodies.


__________________________________________________
"A long ride is the answer to a question you will soon forget!" ~ Anonymous
1977 R75/7-100, '93 K11/K12 Big Block, '93 K1100RS, '95 R100 Mystic, '96 K1100RS, 2 x '98 K1200RS, '06 K1200R & '09 K1300GT
    

6Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Sat Oct 10, 2015 10:50 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Boy, that Audi TT would make a great dune buggy!


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

WoodyAUK75

WoodyAUK75
Silver member
Silver member
On the subject of airbox replacements, this is my favourite so far. https://www.youtube.com/watch?v=948AwN1NLjA

    

Holister

Holister
Life time member
Life time member
Point-Seven-five wrote:Boy, that Audi TT would make a great dune buggy!
Laughing


__________________________________________________

1989 K100RT     VIN  0097367 (naked)  
1996 K1100RS   VIN  0451808
 Cafe Racer K100RS Build & Support Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

JaseYPK

JaseYPK
Silver member
Silver member
Hey bud, your bike is almost identical to mine, in year, colour, mileage, and current state! Haha

Good luck with the build!


__________________________________________________
1984 K100 RS - The Project!
    

10Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Sun Oct 11, 2015 5:20 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
WoodyAUK75 wrote:On the subject of airbox replacements, this is my favourite so far. https://www.youtube.com/watch?v=948AwN1NLjA
That's our man Scheffers!


__________________________________________________
"A long ride is the answer to a question you will soon forget!" ~ Anonymous
1977 R75/7-100, '93 K11/K12 Big Block, '93 K1100RS, '95 R100 Mystic, '96 K1100RS, 2 x '98 K1200RS, '06 K1200R & '09 K1300GT
    

11Back to top Go down   Cafe Racer K100RS Build & Support Empty Update 2 Sun Oct 18, 2015 4:51 pm

Dachwaton

Dachwaton
active member
active member
Hi guys,
So been busy over last couple of weekends doing a few various jobs and waiting for parts to arrive.
Ive ordered the BSK 4 into 1 exhaust which ive just slotted on for now & have fitted some Raask Rearsets
Cafe Racer K100RS Build & Support WP_20151018_11_36_29_Pro_zpsndcivmhe
Cafe Racer K100RS Build & Support WP_20151018_11_36_48_Pro_zpsbr0bvm3k
The rearsets were difficult to install as you only get a little picture to work from and no instructions. Ive not yet got the rear brake setup right, its a bit floppy and I dont know how to make the brake light work so ill have to figure that out later. Cafe Racer K100RS Build & Support 610153

My mate came this weekend so I recruited him for a couple of hours to help me out fitting the new headlight. Its got a LED ring around the light as a little nod to the BMW Angel Eyes and I think it suits the bike well. Ill have a play with it later on moving it around, maybe a little lower.
Cafe Racer K100RS Build & Support WP_20151018_14_39_43_Pro_zpskgrh38qt
Cafe Racer K100RS Build & Support WP_20151018_14_38_58_Pro_zps9ijiuzio

You may have also noticed the Air Intake, after thinking about various options of how to mount the filter, what make, what size, what will fit etc I found a way to mount the filter & im really happy with the result, I think it looks really good.
It fitted really snugly but I made a supporting bracket that bolts from the engine to the unit. It feels absolutely solid with this in place.
Cafe Racer K100RS Build & Support WP_20151018_16_30_32_Pro_zpsttxumb4k
I also cut down and shaped the front mud guard.
Cafe Racer K100RS Build & Support WP_20151011_13_03_14_Pro_zps1gp58x6f

Im hoping some foam blocks come soon so I can start making the seat, if anyone in the UK knows somewhere I could pick some up from that would be great. Ive refrained from chopping the bike frame so far but ill be looking to make a cut soon. I cant weld either so I need to find a mobile welder, there seem to be a few in London.

Exciting stuff! (o)

    

12Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Sun Oct 18, 2015 7:46 pm

AL-58

AL-58
Life time member
Life time member
A hint for the seat. It's easier to build it up in layers that it is to carve it from one lump of foam  That way you can also use firmer foam at the base for support and softer foam near the surface for comfort. I generally use a combination of 2" and 1" thick foam.

So laminate the shape you want in pieces glued togetherusingcontact cement,
trim it up with an electric carving knife, silicon spray on the blades will help it cut through the foam easier, 
sand it smooth to remove any lumpiness(A wood rasp and very coarse sanding disks(held by hand) can be used to sand/shape the foam), 
then cover the whole thing in 1/4" foam to make it absolutely smooth before covering it.  

If the cover is going to be sewn together from many pieces, now is the time to take a felt fen and a tape measure, draw a centreline and think of where the seams will sit before drawing them on. 

If it sounds like I know what I'm doing that's because I'm a qualified Motor Trimmer. I'm helping in the hope that it won't end up being a timber plank covered in brown "leather" like too many cafe chop jobs.

Al


__________________________________________________
'93 K1100LT
'08 F650GS (798cc)
'19 R1250RS

+ another boxer engined motorcycle and sidecar

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Cafe Racer K100RS Build & Support K-dogs10
    

13Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Sun Oct 18, 2015 9:10 pm

Holister

Holister
Life time member
Life time member
Here is one of the nicer seat/tail mods we've seen on here from mrc
https://www.k100-forum.com/t9861-k100-custom

If you follow the link to his web page, about half way down you'll see how the seat foam was constructed.
Unfortunately you'll also see what happens when you mix off road tyres with clip-ons


__________________________________________________

1989 K100RT     VIN  0097367 (naked)  
1996 K1100RS   VIN  0451808
 Cafe Racer K100RS Build & Support Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

14Back to top Go down   Cafe Racer K100RS Build & Support Empty Design Idea Wed Oct 21, 2015 3:36 pm

Dachwaton

Dachwaton
active member
active member
So ive been having a little play with Photoshop to see what sort of colours I think suit the bike as I want to go for something different to the standard blue.

What do you think, let me know what you prefer?

Option 1 Light:
Cafe Racer K100RS Build & Support Ideas_zpslovyyycz

Option 2: Dark
Cafe Racer K100RS Build & Support Ideas2_zpsydkjdold

    

15Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Wed Oct 21, 2015 5:19 pm

Dai

Dai
Life time member
Life time member
I like the lighter option. I certainly like the way the sump jumps out at you.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

16Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Wed Oct 21, 2015 5:38 pm

88

88
Life time member
Life time member
I like the lighter option too but would try doing the brown seat and a brown/tan and dark metallic grey pinstripe

How would the headlamp bowl look color coded?


__________________________________________________
Cafe Racer K100RS Build & Support Ir-log1188....May contain nuts!Cafe Racer K100RS Build & Support Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

K1 - 1989 - AKA Titan (unique K1/K1100RS hybrid by Andreas Esterhammer)
K1100RS - 1995. AKA Rudolf Von Schmurf (in a million bits)
K100RS - 1991 AKA Ronnie. Cafe racer project bike
K75RTP - 1994
K75C - 1991 AKA Jim Beam. In boxes. 
K1100LT 1992 - AKA Big Red (gone)
K100LT - 1988 - AKA the Bullion brick. Should never have sold it.
    

17Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Wed Oct 21, 2015 6:07 pm

robmack

robmack
Life time member
Life time member
+1 on the lighter option. The dark option just looks sad.


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
http://k75retro.blogspot.ca/
    

18Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Wed Oct 21, 2015 7:57 pm

K75cster

K75cster
Life time member
Life time member
I like the dark option, a nice combo


__________________________________________________
Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

19Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Thu Oct 22, 2015 7:34 am

WoodyAUK75

WoodyAUK75
Silver member
Silver member
That pod filter setup looks great. Another thing I've wondered is if you could get the battery in there on top of the motor, or would it get too hot?

    

20Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Thu Oct 22, 2015 8:20 am

Dachwaton

Dachwaton
active member
active member
WoodyAUK75 wrote:That pod filter setup looks great. Another thing I've wondered is if you could get the battery in there on top of the motor, or would it get too hot?

Thanks, the air pod gave me a wee headache trying to make secure and strong. It doesn't touch the engine apart from a little mounting bracket which I don't anticipate to transfer a lot of heat (but time will tell).
There are people I have seen put the battery in the engine area but I'm not sure if this is suspended or on a tray. I don't think you would want to mount it onto the engine.

    

21Back to top Go down   Cafe Racer K100RS Build & Support Empty Update 3 Sun Oct 25, 2015 4:58 pm

Dachwaton

Dachwaton
active member
active member
So another busy day at the garage and started to strip the tank of paint & cut the frame to shorten the bike.
Cafe Racer K100RS Build & Support WP_20151025_10_26_15_Pro_zps2gbcqnt0

Cafe Racer K100RS Build & Support InstagramCapture_92c31a67-5728-470d-ab0f-f4e5dbbfc55c_zps6st4nmbl

Cafe Racer K100RS Build & Support WP_20151025_13_06_54_Pro_zpsavpgcsx8

Cafe Racer K100RS Build & Support WP_20151025_16_08_18_Pro%202_zpseabfqtyz

Ordered clip on handlebars & will need to arrange for a local place to weld a tail loop into the frame, I can then get started on the seat.

    

22Back to top Go down   Cafe Racer K100RS Build & Support Empty Seat Shape and Profile Mon Oct 26, 2015 3:54 pm

Dachwaton

Dachwaton
active member
active member
Been having  a play with Photoshop again to try and decide on the general shape and flow of the side profile.
What do you think guys, 1, 2, 3 or none of these?
I quite like 1 as the angle from the tank follows the line of the bike. Open to suggestions!
The headlight will be even lower and it will have clip-on's too so the front end will look slightly different.

Option 1:
Cafe Racer K100RS Build & Support Seat1_zpscsczfpsl

Option 2:
Cafe Racer K100RS Build & Support Seat3_zpsr7b36vve

Option 3
Cafe Racer K100RS Build & Support Seat2_zpsn9vi2pyd
Option 4:
Post some favourites you have?

    

23Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Oct 26, 2015 6:16 pm

blaKey

avatar
Life time member
Life time member
Option 2. The lower rounded tail piece makes the back end look less "chunky". My opinion only.

Just a general question if I may...how do these air filter pods handle wet weather?


__________________________________________________
Neil
K100RS 1986 RED!

Dress for the ride and the potential slide.
    

24Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Oct 26, 2015 6:47 pm

Dai

Dai
Life time member
Life time member
Option1... but then I've always liked the Darmah backend.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

25Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Oct 26, 2015 7:11 pm

AL-58

AL-58
Life time member
Life time member
blaKey wrote:Option 2. The lower rounded tail piece makes the back end look less "chunky". My opinion only.

Just a general question if I may...how do these air filter pods handle wet weather?

An aside:

Once upon a time a motorcyclist with a broken R100GS had to hitch hike from Glendambo to Adelaide to get him and his dog home. He got a lift with a couple travelling together as a pillion on a Guzzi LeMans Mk 3.  It was fitted with pod air filters.  On the ride south there was a deluge while riding through some muddy road works and a loud 'pop' was heard.  The rider of the bike looked and said "that hasn't happened for a while".  The pod had filled with water, the bike had stopped breathing and a carby along with its pod had backfired off its manifold!

Next garage the pods got soaked in WD40 which seemed to stop the water problem and Adelaide was achieved where BMW-less rider and his dog flew home to Sydney to battle the BMW warranty trolls.

I still have some good friends from that experience(was actually Matron of Honour at the female partners next wedding) and a healthy disrespect for BMWs reputation of reliability and customer support.

Al

For the question of the cafe racer ducktail, I quite like it when they use the factory tail but bring it forward to form a single seat space. It seems to match the flow of the tank quite well.  But a half inch of foam is not a seat I'd want to use.
Cafe Racer K100RS Build & Support 10357779_751773238177796_2429261648933929967_o


__________________________________________________
'93 K1100LT
'08 F650GS (798cc)
'19 R1250RS

+ another boxer engined motorcycle and sidecar

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Cafe Racer K100RS Build & Support K-dogs10
    

26Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Oct 26, 2015 7:36 pm

Dachwaton

Dachwaton
active member
active member
blaKey wrote:Option 2. The lower rounded tail piece makes the back end look less "chunky". My opinion only.

Just a general question if I may...how do these air filter pods handle wet weather?
Heya,
So basically its fine as long as you keep the filter oiled and cleaned regularly. 
You can get K&N filter service kits that allow you to clean and oil it.

    

27Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Tue Oct 27, 2015 5:31 am

zach_ross

zach_ross
Silver member
Silver member
AL-58 wrote:
blaKey wrote:Option 2. The lower rounded tail piece makes the back end look less "chunky". My opinion only.

Just a general question if I may...how do these air filter pods handle wet weather?

An aside:

Once upon a time a motorcyclist with a broken R100GS had to hitch hike from Glendambo to Adelaide to get him and his dog home. He got a lift with a couple travelling together as a pillion on a Guzzi LeMans Mk 3.  It was fitted with pod air filters.  On the ride south there was a deluge while riding through some muddy road works and a loud 'pop' was heard.  The rider of the bike looked and said "that hasn't happened for a while".  The pod had filled with water, the bike had stopped breathing and a carby along with its pod had backfired off its manifold!

Next garage the pods got soaked in WD40 which seemed to stop the water problem and Adelaide was achieved where BMW-less rider and his dog flew home to Sydney to battle the BMW warranty trolls.

I still have some good friends from that experience(was actually Matron of Honour at the female partners next wedding) and a healthy disrespect for BMWs reputation of reliability and customer support.

Al

For the question of the cafe racer ducktail, I quite like it when they use the factory tail but bring it forward to form a single seat space. It seems to match the flow of the tank quite well.  But a half inch of foam is not a seat I'd want to use.
Cafe Racer K100RS Build & Support 10357779_751773238177796_2429261648933929967_o


Like he said use the original tail, looks much better than all the other aftermarket tails out there. Look here you can see how I have done so far.


__________________________________________________
Silver 1987 K75S
    

28Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Tue Oct 27, 2015 6:09 am

Bonzo

Bonzo
Life time member
Life time member
Dachwaton wrote:So ive been having a little play with Photoshop to see what sort of colours I think suit the bike as I want to go for something different to the standard blue.

What do you think, let me know what you prefer?

Option 1 Light:
Cafe Racer K100RS Build & Support Ideas_zpslovyyycz

Option 2: Dark
Cafe Racer K100RS Build & Support Ideas2_zpsydkjdold
To be honest they both look the same to me, but its hard to be sure as that bike is obscuring the view.

    

29Back to top Go down   Cafe Racer K100RS Build & Support Empty Update 4 Sun Nov 08, 2015 2:07 pm

Dachwaton

Dachwaton
active member
active member
Hi all,
Been another busy week getting stuff sorted.
The frame has been cut and welded, the original tail pipe has been reshaped and welded back in place rather than getting a round loop. Ive also lowered the headlight a little which looks a lot better.
Cafe Racer K100RS Build & Support WP_20151106_16_36_22_Pro_zpszwouedww

Clip-ons fitted  and front end lowered a little by allowing the forks through the top yokes.
Cafe Racer K100RS Build & Support InstagramCapture_2f7f1d9f-ded7-447f-b6b4-b7ae28b0fdbf_zps8qobfbgs

Ive started to prepare the seat by making a tray out of fibreglass, hopefully I can build up the seat from the tray.
Cafe Racer K100RS Build & Support WP_20151108_15_08_16_Pro_zpssgujjguz

Have also completely stripped the fuel tank of paint and fitted a new petrol cap, think it looks great but was really hard graft.
Cafe Racer K100RS Build & Support WP_20151108_15_39_54_Pro_zpscr8bsxmy
Cafe Racer K100RS Build & Support WP_20151107_17_16_19_Pro_zpsle6knkp9

    

30Back to top Go down   Cafe Racer K100RS Build & Support Empty Update 5 Mon Nov 16, 2015 5:48 pm

Dachwaton

Dachwaton
active member
active member
So not a lots been happening over the last couple of weeks, I've been starting to make the seat but I am finding it really tricky as I haven't ever done this before and haven't used fibreglass before...plus its now dark and cold too :-(
I think I might need to make another one at some point but ill try to push though with this one and see how it actually looks at the end.
Cafe Racer K100RS Build & Support WP_20151115_13_23_07_Pro_zpskethklza
Cafe Racer K100RS Build & Support WP_20151115_15_56_57_Pro_zpswbmpsdet

    

31Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Nov 16, 2015 6:32 pm

BadjerJim

BadjerJim
Silver member
Silver member
Wow, real progress and it really looks good.  Like others, I'm always nervous when someone takes a 30-year-old stock bike and... well, changes it all around.  But yours looks good. 

I'm anxious to see it progress.

    

32Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Nov 16, 2015 7:22 pm

Rick G

Rick G
admin
admin
I would very much like to know more about the fuel cap. Like what and how you fitted it.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

33Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Tue Nov 17, 2015 12:49 pm

Dachwaton

Dachwaton
active member
active member
BadjerJim wrote:Wow, real progress and it really looks good.  Like others, I'm always nervous when someone takes a 30-year-old stock bike and... well, changes it all around.  But yours looks good. 

I'm anxious to see it progress.

Thanks for the supportive comments, I'm trying hard to make changes that I like but ensure I have a nod to the k and bmw. The headlight for example has a halo similar to the BMW 'angel eyes', little touches like that.
After the seat has been refined / made there should be a few big amendments.

    

34Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Tue Nov 17, 2015 12:57 pm

Dachwaton

Dachwaton
active member
active member
RicK G wrote:I would very much like to know more about the fuel cap. Like what and how you fitted it.

The fuel cap is from flatracer, link below.
http://www.flatracer.com/bmw-accessories/4583973505

Its quite expensive but has been made beautifully and its something your going to see every single time you ride. They do another one that sits a bit higher off the tank which wasn't to my taste.
Delivery was quick and its literally been the easiest thing ive changed. It just bolts directly into all the existing holes.
I did order a brand new OEM fuel tank washer thing to sit between the tank and the cap to hopefully stop water getting in. Probably took about 10 minutes to swap over, if only everything else was that easy!

    

35Back to top Go down   Cafe Racer K100RS Build & Support Empty Smaller K Battery Sat Dec 12, 2015 12:37 pm

Dachwaton

Dachwaton
active member
active member
Hi Guys,
Looking for a smaller, lighter battery to replace the existing one & potentially move it into the seat hump.
Anyone able to recommend one?

Cheers

    

36Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Sun Dec 13, 2015 7:02 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
I've got a very small and light Ballistic Li-ion battery on my K track bike. It starts the bike no problem but as it's only small, the bike needs to be a good starter, you couldn't expect it to churn that bike lump all afternoon while you investigate a non start.
Have a look at my thread about my K100. There is a picture down the page of 3 battery's. The larger on is an Odyssey PC680 that weighs a whopping 7kg, the two smaller items do the job too.

https://www.k100-forum.com/t9549-jj-cobas-k100r-flying-brick

    

37Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Dec 14, 2015 5:28 pm

Dachwaton

Dachwaton
active member
active member
Motorbike Mike wrote:I've got a very small and light Ballistic Li-ion battery on my K track bike. It starts the bike no problem but as it's only small, the bike needs to be a good starter, you couldn't expect it to churn that bike lump all afternoon while you investigate a non start.
Have a look at my thread about my K100. There is a picture down the page of 3 battery's. The larger on is an Odyssey PC680 that weighs a whopping 7kg, the two smaller items do the job too.

https://www.k100-forum.com/t9549-jj-cobas-k100r-flying-brick
Thanks for the information, ill take a look at the options.
I guess the Li-ion battery will be pretty simple to charge up whilst its not in use?

    

38Back to top Go down   Cafe Racer K100RS Build & Support Empty Update 6 Mon Dec 14, 2015 6:01 pm

Dachwaton

Dachwaton
active member
active member
Evening all,
So its been a couple more weeks since ive updated but I managed to squeeze in a couple of hours this weekend to get some jobs done.
Ive installed the bar end mirrors, they're not perfect yet but give the bike a really nice silhouette & shape with them swooping down. Ive also mounted a Koso speedometer, its not wired in yet though. Im going to paint the bikes main colour in cream / ivory with red as an accent colour so went for the white dial with red rev counter, should look good in the end when its all come together.

I also managed to tidy up a lot of the cabling to make the overall look a lot cleaner & im pretty happy with it. I found that the previous owner had changed a few of the control cables such as the clutch, but for some reason hadn't taken out the old ones so when tracing through the bike so that was good shedding a couple of unattached cables.

Ive still been working on the bloody seat, I think ill have to buy one in the end but im hoping to smooth it all out soon with some filler and sanding but im not sure its going to work. Me and fibreglass dont get on I dont think.
Cafe Racer K100RS Build & Support InstagramCapture_642b923e-dd0b-44c7-b08a-0df872d9b506_zpslnxgdwh3
Cafe Racer K100RS Build & Support InstagramCapture_a2746d85-c039-4f40-883d-abe144073b9b_zpsjgxuibo0
Cafe Racer K100RS Build & Support WP_20151213_14_02_35_Pro_zpsxei7rqxc

    

39Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Dec 14, 2015 6:02 pm

Chocolate

Chocolate
Life time member
Life time member
Hello Dachwaton!

Just an idea, I use batteries from the solar industry,
the prices a perfect and mine powers on anytime in winter.
I'm using one with 18Ah, powers on much faster than the last one I had.
I found a link, but I don't know the uk market to much.

Sealed Lead Acid Deep Cycle Solar 12V 12Ah Battery 1 Pac

http://www.maplin.co.uk/p/sealed-lead-acid-deep-cycle-solar-12v-12ah-battery-1-pack-n70hf

Cheers


__________________________________________________
Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

40Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Dec 14, 2015 6:24 pm

mike d

avatar
Life time member
Life time member
I found that the previous owner had changed a few of the control cables such as the clutch, but for some reason hadn't taken out the old ones so when tracing through the bike so that was good shedding a couple of unattached cables.


Are you sure they weren't spare cables? A lot of owners run in spares to make it easier to swap over while on the road should the original fail.

Mike

    

41Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Dec 14, 2015 6:38 pm

Dachwaton

Dachwaton
active member
active member
mike d wrote:I found that the previous owner had changed a few of the control cables such as the clutch, but for some reason hadn't taken out the old ones so when tracing through the bike so that was good shedding a couple of unattached cables.


Are you sure they weren't spare cables? A lot of owners run in spares to make it easier to swap over while on the road should the original fail.

Mike
Heya Mike,
I don't think they were spare cables, they were all chewed up and nasty, I think they just hadn't bothered to remove the tank and faff around with tracing it all back through the bike.
To be fair, its a bit of faff even with all of the items stripped off and tank removed.

    

42Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Mon Dec 14, 2015 6:41 pm

Dachwaton

Dachwaton
active member
active member
Espresso wrote:Hello Dachwaton!

Just an idea, I use batteries from the solar industry,
the prices a perfect and mine powers on anytime in winter.
I'm using one with 18Ah, powers on much faster than the last one I had.
I found a link, but I don't know the uk market to much.

Sealed Lead Acid Deep Cycle Solar 12V 12Ah Battery 1 Pac



http://www.maplin.co.uk/p/sealed-lead-acid-deep-cycle-solar-12v-12ah-battery-1-pack-n70hf

Cheers
Thanks, ill take a look at that.

    

43Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Tue Dec 15, 2015 9:37 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Dachwaton wrote:
Motorbike Mike wrote:I've got a very small and light Ballistic Li-ion battery on my K track bike. It starts the bike no problem but as it's only small, the bike needs to be a good starter, you couldn't expect it to churn that bike lump all afternoon while you investigate a non start.
Have a look at my thread about my K100. There is a picture down the page of 3 battery's. The larger on is an Odyssey PC680 that weighs a whopping 7kg, the two smaller items do the job too.

https://www.k100-forum.com/t9549-jj-cobas-k100r-flying-brick
Thanks for the information, ill take a look at the options.
I guess the Li-ion battery will be pretty simple to charge up whilst its not in use?
I just give mine a charge every now and again-they seem fine.

    

44Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Tue Dec 15, 2015 9:49 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Dachwaton wrote:
Espresso wrote:Hello Dachwaton!

Just an idea, I use batteries from the solar industry,
the prices a perfect and mine powers on anytime in winter.
I'm using one with 18Ah, powers on much faster than the last one I had.
I found a link, but I don't know the uk market to much.

Sealed Lead Acid Deep Cycle Solar 12V 12Ah Battery 1 Pac











http://www.maplin.co.uk/p/sealed-lead-acid-deep-cycle-solar-12v-12ah-battery-1-pack-n70hf

Cheers
Thanks, ill take a look at that.
I have to admit that these batteries look a good idea but at 9.25lbs? That's a heavy piece of hardware hung out over the rear wheel, if it were mounted centrally on the bike it would be fine. The Ballistic 8 cell I've used only weighs 1.7lbs. 

http://www.ballisticparts.com/product_info.php?products_id=425

The Maplins batteries are priced right though and if a battery goes down on one of my everyday bikes,I'd give one a try.

    

45Back to top Go down   Cafe Racer K100RS Build & Support Empty Aftermarket Expansion Tank Wed Jan 13, 2016 8:29 am

Dachwaton

Dachwaton
active member
active member
Hi Guys,
Haven't been on here for a little while but will post an update in the next week.
I want to relocate the expansion tank so that instead of being near the battery, moving it to somewhere else.

Can anyone recommend an after market tank that will work fine with the K100?
Does the replacement have to be the same capacity or can it be smaller?
Any ideas on where or how best to mount it?

Thanks

    

46Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Wed Jan 13, 2016 8:46 am

Chocolate

Chocolate
Life time member
Life time member
Hey!

Just google for "motorcycle cooland overflow" you will find a lot, click on pictures in google

Here is a thread with some more info, scroll down that page
https://www.k100-forum.com/t10621-coolant-overflow#125598

Cafe Racer K100RS Build & Support RadOVR

Cheers


__________________________________________________
Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

47Back to top Go down   Cafe Racer K100RS Build & Support Empty Update 7 Sat Jan 16, 2016 7:57 pm

Dachwaton

Dachwaton
active member
active member
Hi Everyone,
So been a bit quiet on here over Christmas and New Year with everything going on but I have been doing a few jobs on the bike over the last few weeks.
I have decided to give up on the seat, the more I tried to do and the more I looked at it, my attempt looked rubbish. I understand the process now but the whole thing was taking forever to complete so I decided to measure up and order one that I hope compliments the bike. At least with the one I have bought it will be perfectly smooth and should fit the bike nicely.

Ive now wired in the headlight and front indicators. Im happy with the indicators as they are quite small and subtle but give off a nice bright light.
Cafe Racer K100RS Build & Support InstagramCapture_3_zpsz4vbstt3
Cafe Racer K100RS Build & Support InstagramCapture__zpss4uavsfb
Cafe Racer K100RS Build & Support InstagramCapture_6ec4352d-039c-4f86-b4dc-cbfa163120c4_zpsyjfn21ps

In addition to the light and indicators, ive also removed the second fuel tank tag to clean up the side profile. I noticed that quite a lot of the modified bikes kept this but I never really liked it so decided to remove it.
Cafe Racer K100RS Build & Support 20160111_213947%202_zpsika7lep0

And the other modification I completed was to move the coolant overflow / expansion tank. Because im relocating the battery, the original coolant tank wouldn't fit anymore so I went for something different, somewhere different. 
Im not 100% sure if ill keep in the same location but I used a carbon fibre Oil Catch Can as the coolant overflow tank which will hopefully work quite well. Will I need to allow a little air in this so the system can 'suck' the coolant back into the system?
Cafe Racer K100RS Build & Support InstagramCapture_d8bafe4d-efed-4e8a-9be6-0dd8e57c4166_zpsiidw3ilh
Cafe Racer K100RS Build & Support InstagramCapture_b479a756-41b9-492a-9baf-672a6dc2139c_zpsqahrszbb
Cafe Racer K100RS Build & Support InstagramCapture_ab5a0015-cf8c-4509-899d-b41ac0220cfc_zpsdbvqawev

Next items will be fitting the horn, relocating the ignition and seeing how the new seat looks.

    

48Back to top Go down   Cafe Racer K100RS Build & Support Empty Where does this wire go? Sun Jan 17, 2016 5:33 pm

Dachwaton

Dachwaton
active member
active member
Can anyone please tell or show me where this black wire should go?
Im not sure if its an earth wire or whether its come off a part of the bike but I was chasing it today to see where it went and ended up going nowhere and hanging loose.
Cafe Racer K100RS Build & Support Wire_zpsvgqoc2he
Any support would be greatly received.

    

49Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Sun Jan 17, 2016 5:51 pm

Inge K.

Inge K.
VIP
VIP
The wire is non OEM, ...the way it's connected, it's 12V+ unswitched and unfused.
Remove it.


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

50Back to top Go down   Cafe Racer K100RS Build & Support Empty Re: Cafe Racer K100RS Build & Support Sun Jan 17, 2016 6:11 pm

Dachwaton

Dachwaton
active member
active member
Inge K. wrote:The wire is non OEM, ...the way it's connected, it's 12V+ unswitched and unfused.
Remove it.
Thanks,
I didn't think I pulled it off anything as have been very careful through the build process and couldn't figure out where it might have come from.

    

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