As some of you know I bought my first K100 at autum of 2012. It seems that they are hard to get rid of and they tend to multiply on ones garage.

First K100 was (is) a Cafe/Bobber style customized and so it is not that good for travelling with luggage etc. So I bought one with original luggage and fairings - actually bike is almost completetly original. Missing only bellypan fairing. Rear shock is also replaced but I got original with bike and it is possible to repair it. I will keep bike as original as possible and I may try to classify it as museum bike when it comes 30 years old. It would raise the value a bit and cheapen insurance to almost nothing / year.

Bike is SE model with ABS (functional) Mk 1.5 on it.

Pictures as promised:

https://www.dropbox.com/sh/blwconrpk8fx1yj/AAA7fPjwWLKzcGZuB6kvDSAia

1st one is before I even bought the bike (testdrive).
2nd and 3rd just arrived to my garage the day I bought it.
4th -> After wash&wax and rearbag removal.

7th pic - all my Beemers   

Edit: E46 is sold.

Looks a tidy machine, hope you have many happy rides!

Did it have the small rack that should be on the rear cowl?

Mike

You have a very nice combination of rides there! One for every occasion  
Is the 5 series an 03 model? If so I have its twin.(540i).
I'm just starting the timing chain & guides replacement job on it. 

What's the rear-end gear ratio on the cafe bike, is it the same as the RS?  

mike d wrote:Looks a tidy machine, hope you have many happy rides!

Did it have the small rack that should be on the rear cowl?

Mike

Yes it did and that original tailbag. I took them of and will keep them for future. I don't need them now and don't like how they look. Spoils somewhat that original paint scheme too.

Dale S wrote:You have a very nice combination of rides there! One for every occasion  
Is the 5 series an 03 model? If so I have its twin.(540i).

That is actually 3 series (E46) from 1999 328ia to be excact. Had once a 540ia, but it was E34 from 1992.

AJ.Valente wrote:What's the rear-end gear ratio on the cafe bike, is it the same as the RS?  

I don't really know, but the bike is RT model from year 1986 if that helps.

Tenox wrote: Missing only (if it has had one) bellypan fairing.

The mounting holes for the bellypan bracket is covered with plastic caps from the factory,
on yours it's hexhead screws in this holes........

Inge K. wrote:

The mounting holes for the bellypan bracket is covered with plastic caps from the factory,
on yours it's hexhead screws in this holes........

There is one black plastic cap on the other side of engine I think - wondered what it is while cleaning the bike. I will try to take a picture of it. There is a possibility that some of the caps have disappeared in 26 years.

Edit: Deleted link which does not work

Thanks. I knew I should have posted picture of the otherside too. Better late than never:
 
Edit: Deleted link which does not work

Is that the same thing?

That is a very nice looking rs ,and a very nice garage too.

k-rider

Thanks k-rider!

Tenox wrote:Thanks. I knew I should have posted picture of the otherside too. Better late than never:
 
https://www.dropbox.com/s/t851l3jvzsy53d0/DSC_0426.JPG
 
Is that the same thing?

This one is in a mounting hole for the bracket, but this plastic cap has a larger diameter head than those I've seen which have been mounted from the factory.

Those 4 holes were originally for the BMW 'engine assembly stand' .....long before they made the lower fairings.

That's why all engines have them.

Just a thought,
Paul.

Is there a way (with vin or something) to find out how (with what equipment) bike came out from the factory?

The difference between the standard RS and the SE models I've described in reply #180 in this thread.......

What I'm trying to mention in this thread is that the engine spoiler have been removed on your bike, and this and that have been put in the mounting holes for the bracket.

As a additional info it can be mentioned that the engine spoiler that earlier have been on your bike have been blue with white sides.....on the -89 year SE model the spoiler was all blue.



A press release about the -88 SE model.................

As you can see, you have to be very very clear before I get a simple thing... Sorry Inge and thank you for your patience. So I have to hunt a spoiler fairing for my bike before year 2019. And find out excactly the way it is painted etc. if I tend to get this bike to our museum registry. I have heard that spoilers are not that easy to find, luckily I have time. I think I will ask previous owner if he knows about it. (Edit: He did not know - it was missing when imported to Finland)

Bike was imported to Finland year 2000 by a bikeshop and previous owner bought it from there. Had it for almost full 14 years. So he knows bikes all Finnish history. If the fairing was not inclueded then, then it must have disappeared already at Germany.

Have not been driving with bike since it's insurance starts from next monday (and older K100 insurance ends this saturday). Can't wait to get on the saddle!

Only negative thing I have noticed about the bike on way home, is that the handlebar grips are very hard and they let in much vibrations to my hands. I do not want to change them, so I have to come up with somekind of covering of somekind of soft material.

Edit: Also my rims are missing the pinstripes - were they stickers or painted?

And one more question. Is the spoiler same on 16v models and 8v models?

Edit: Had to do some changes to insurances. So bike is OK for road starting today (23th of may)!!!

This is going to be the best kept bike in the country.

Why not remove the grips, put them in a soft bag in a safe place and replace them. If you have the originals they can be put back on at any time.

I believe the spoiler is the same with the difference being the mounting bracket.

Not sure which is which, but I can assure you one of these is for your bike




Time for me to go home now. I am going for a ride tomorrow

Thanks Rossko!

Tenox wrote:
Edit: Also my rims are missing the pinstripes - were they stickers or painted?

And one more question. Is the spoiler same on 16v models and 8v models?

The pinstripes on the wheels I would guess is hand painted (which is often seen on the SE/LE models), and only used on the -88 year model.
For all that I know it could be only the first batch.......seen both with and w/o.


About the engine spoiler......the one in the first drawing that Rosskkkko did post is the correct one.
The 16V Version did have a larger cutout for the headers.


A couple of photos from the net, so you can see the paint scheme ...when you find one............the last one I believe have the most correct paint scheme....

Thanks!

Oh that spoiler would also look very nice...

Made some changes to insurances and did a first good weather bit longer drive with this one today. It has been very warm may in here. +27celsius today and still at 22:00 +23c. Noticed one other thing that I don't like and what is missing from my other K100. At low rpm my old bike was as smooth as it is on any rpm. This new one goes kangaroo when revs goes down to near 2500rpm. It is annoying. Problem is solved by gearing down of course, but one thing I really liked about my old K was that it went so smooth without need to shift down. Even at speeds like 40km/h on 5th gear (don't know about revs, since it has no tachometer). With this new one it seems that I have to pedal down to 2nd gear on those speeds. Bike also seems to run a bit thin mixture which may actually cause this behaviour. Sometimes when braking with engine it makes little bangs from exhaust. This again is something old one does not do. It will be interesting to see how much difference there is on fuel effiency. Old one consumed about 5,7l / 100km.

Other than that and the thing about the handlebars I'm very happy about my purchase.    Bike handles well, it has good brakes and it goes on highway like a train. 1st longer trip is scheduled next tuesday, but I really need to think something for those grips. My hands get numb after just a 30-40km.

About the low rev problem....I would have started with checking the rubbers under the TB's for leak.........use starter fluid or propane.

Ok. They are hard to test since the fairing. Wouldn't air leak affect to the idle too? Is there a TPS or something like that on K100 and could it do this? Is there a simple way to reset it?

The air leak will affect the idle and one other thing is the O rings on the injectors can leak a bit but check the rubbers first as it is far more likely to be there.

+1 what Rick said.

Tenox wrote:They are hard to test since the fairing.

The inner part of the fairing mounted with 3 screws, removed in ~1 minute.

But you get far better acces if you remove fairing lower, ~10 min. when you've done it a couple of times.
Remove 3 screws at the front beside the radiator intake (use a sharp ph.2),
remove the screw that goes through the rubber mount at the rear end,
loosen the 4 screws at the top a half turn, grab the fairing lower at the bottom and remove the screws.

Tenox wrote:Is there a TPS or something like that on K100 and could it do this?

All the 2V's got same TPS, it only senses full closed and full open throttle.....ie have nothing to do with this.
The TPS is correctly adjusted when you hear a vague click from it, just as you open the throttle.

Thanks again Inge.

I think I will drive some more before I start this project. Find out if there is some other problems I have to deal with at the same time. Unless fuel consumption is much bigger than it should. If it is I think I have to check this sooner.

I was reading about this fault on forums and found out that some people have changed almost everything in their bike (on fuel side) without improvement... I also read something about ABS models and poor ECU units on first bikes. And by vin my bike would be one of those.

Checked those rubbers just by eyeballs and they actually look good. And I know that does not really tell anything... Then again I found a hose from airbox that looked really bad.

That hose which is behind TPS (and TPS clicks like it should on this bike, but is silent on old one...) and which is kind of different colour is cracked badly. Would this affect on anything? I could rob it from my older bike for now, but can you take that off without taking the whole airbox off? I could then order a new hose to old bike.

Tenox wrote:That hose which is behind TPS (and TPS clicks like it should on this bike, but is silent on old one...) and which is kind of different colour is cracked badly. Would this affect on anything? 

Most definitely.  Change it out ASAP.

Is it doable without removing the airbox?

Tenox wrote:Is it doable without removing the airbox?

Yes.

Paul.

Tenox, have you seen these?

http://www.motorcycleparts-hornig.com/BMW-R-1200-R/Accessories-Paint-protection/Grip-Puppies.html?utm_source=googlebase&utm_medium=organic

Paul.

Sidecar Paul - have not seen. That is just what I need. I have to find out if those things are sold here! Thanks! 

Edit: And we even have a shop in Finland that is selling them.

Changed that hose - old K had a good one - had some problems, but managed to get it there. Tomorrow I will see had that any affect on rev issue. I would not like to scavenge that old bike already but...

+300km today. Weather was mostly really bad.. Rain, +7-10 celcius and heavy crosswinds. But the bike feels great. After that hose change it seems to run better on low revs, but not perfectly. There might be another leak / leaks on those rubbers. It is however now OK for daily use so I will look into those problems at winter if nothing else does not come up.

Allthough bike really felt much better I started to wonder about the weather. Or how much it is a matter in this. When I bought the bike and drove it home was about 10 celcius and rainy and I did not notice anything on low revs. Little like today. When I had problems it was +27 and sunny.

Bike is also quite easy to drive so that revs stay over 2500rpm (tested this too a lot today) and then there is no problems at all. Bike revs nicely to red zone and has steady idle. So I'm satisfied with current situation. No new problems during this drive. Just fun and even tyres seem to feel good now. Suspension is better than on my other bike (sport front and progressive suspension rear) and so are the brakes. They are really good.

I also realized one thing. This is a 2000 euros everyday bike. It is not a museum bike and I loose my nerves if I try to keep it like it would be. That does not mean that I would not take care and maintenance the bike. It just means that I treat it as it is - a thing ment to be used, not polished.  

Edit: and about fuel economy - 5,3 to 5,5 litres / 100km. Which is quite normal I think.

Update on situation after todays ride in +15 celcius and dry weather. It seems that the hose I changed did not affect almost anything. Even weather makes more difference. Which means more kangarooing today. I know that TPS should not do this, but I would like to know WHAT it does? Since this jumping happens only when throttle is almost OFF and it is worse on downhills. So what does happen if TPS reads throttle OFF before it really is OFF? Nothing?

I do believe I have to replace all those rubber parts sooner or later, but I'm just curious.

I think I have to try to switch TPS off because what is said in this thread:

https://www.k100-forum.com/t934-things-that-bmw-put-there-to-annoy-me

Sounds like something I'm experiencing with this RS/SE. On my older bike I can't hear any click from TPS when throttle pumped from OFF/ON and it goes very smooth. This newer one the click is heard, and it is far from smooth.

I just have the read more on about how to tune the tps so that it would work on higher revs, but not on throttle off.

Edit: Like this I guess:
"...just undo the screws a little and turn it anti clockwise ...just a bit till you hear the microswitch release .....whilst still throttle closed..."

I guess this is a "safe" test? I can't really break anything and if it works - like many have said - just keep it like that, and if not tune it back as it was. Which is something I have to document well before making adjustments.

Update:

Did a 50km testdrive and at first I thought that I have found the cure. When cold bike runs smooth, but when it gets hotter this twitching begins. I think - I'm not sure - that it was better now with TPS off even when hot, but not cured. I think I will keep TPS like this for now and test the bike some more. If it seems that it is actually as bad as it was I will readjust the tps to work again.

Also the weather was colder again, about +12 celcius and a bit moist. So I hope there will be a hot day soon so I could really test the bike then with current setup.

Had also ABS lights blinking at first start and they did not stop when I started moving. Stopped after a while and killed the engine, restarted and bilnking stopped. Previous owner mentioned that low current at startup can do this, but he said it would have to be reseted (I have the procedure, don't yet know where the plug I need is on the bike) to stop the blinking. Don't know.. But I think I will start keeping the bike on charger (smart one) when there is longer pause on driving.

Still very happy about this purchase. Bike is really nice to drive (as long as you keep the revs over 2500rpm...).

After a 250km drive today in a perfect weather I think I will leave TPS to WOT only. I like it that way. What comes to that little problem on low revs I have just altered my driving style to avoid it. Keeping the revs over 2500rpm that is. Only places I have problems are cities and I don't really have to drive in them.

Had a really nice and problem free ride today and the bike felt really good. Checked rear and gear oils and they looked like new (as they should since previous owner had changed them recently).

2 more questions came to mind.

1. Does the instrument panel wobble on all K bikes or should I tighten something in somewhere?
2. How are mirror glasses installed? Left mirror almost fell off and I put it back while driving and it seems that it is connected OK. Should I check something on it?

Update on TPS:
Fuel consumption was not affected by that TPS off throttle disconnection. Same 5,3 litres / 100km than before. And I'm really happy I chosed K100 again. There just is nothing better with this low prices.

https://www.dropbox.com/s/gwqqcikgswadqmt/IMG_20140608_064516.jpg

One with the driver too.  

Yes, the instruments are meant to wobble around.

Thanks xpc316e! Found some information about the mirrors by search. So all is OK now.

About 1200km in two weeks.  

Grip Puppies installed. Maybe a test drive tomorrow. It has been very cold june here in Finland. Not much km:s more. About 2000km with this new one so far. No problems.   New tyres purchased, but not installed yet. Metzeler ME880 in standard size front and 140/80 rear.

Edit: GP:s are OK, better than without, but not that much better. Just OK. Worth the price I'd say.

I have not posted here, since nothing to post.   5500km of troublefree riding. New tyres installed (Metzeler ME880) both F/R. 100 000km came into odo just before our summer trip. Bike runs good (still problems under 2500rpm and steady throttle). I like.

God stuff mate.
We can all go on about how good they are, as we did, but good to see yours is running mostly trouble free.

A very nice K and it has answered a question for me.

Over a year ago I was on a bike run when a local registered K I had never seen passed me by. I decided to try to find him at the end of the run and failed. But it was his K that interested me- it was exactly like that one. It was the white and blue that got my attention.

They really are great for using every day and in all weathers.

Small maintanance for winter (motor oil and filter) done. Weather is OK, but I have no interest on driving at this moment. So much other stuff in life now. Some sad, some better. Decided to change trans and rear oils on every second year so did not do that this autumn.

All the best with the bad and the good mate.

Quietly happy all the bike needs is a drink.

Stay warm.

btw, very early spring here, 33C today. Bring on summer.

92KK K100LT 193214 wrote:A very nice K and it has answered a question for me.

Over a year ago I was on a bike run when a local registered K I had never seen passed me by. I decided to try to find him at the end of the run and failed. But it was his K that interested me- it was exactly like that one. It was the white and blue that got my attention.

They really are great for using every day and in all weathers.

I had one of these and sold it to finance the K1. Could it have been this one ?

robmack wrote:

Tenox wrote:That hose which is behind TPS (and TPS clicks like it should on this bike, but is silent on old one...) and which is kind of different colour is cracked badly. Would this affect on anything? 

Most definitely.  Change it out ASAP.

I must say, that condition of this particular hose is absolutetly meaningless what comes to how the engine runs on any revs. I know this now because I changed a very good hose from older K to the new one and placed this bad hose to the old bike. Did not even put any clamps on it (it did not have them on that old bike anyway...). And what happened? Old bike - now with poor hose - still runs smooth under 2500rpm and new bike with good hose and clamps does not. So there is no significance affect at all to anything.

Just so you know too.

It is also quite weird how different engines I have on these bikes. Older (86) also 8v is smoother, revs much more rapidly and reacts to throttle twist better. It seems to have lots more horses in it. Well it was said to me that while it was rebuild completetly (less than 20 000km ago) it overgone some smoothing of channels in cylinder head (not sure if that is correct part in english). Also that bike is much lighter so it may seem quicker also because of that.

I would say - with my ass'o dynometer (tm) that this rebuild engine has about 20-30 more horses than the other one.

It doesn't have anything to do with how it flows fuel. I agree with Robmack - change it ASAP because there is a definate possibility of the hose splitting and spraying fuel everywhere just when it's most inconvenient.

Dai wrote:It doesn't have anything to do with how it flows fuel. I agree with Robmack - change it ASAP because there is a definate possibility of the hose splitting and spraying fuel everywhere just when it's most inconvenient.

It is not a fuel hose. All fuel hoses are new.

It seems that I have lost the picture of the hose. I think it is called a "crank case breather hose"

https://2img.net/h/i82.photobucket.com/albums/j246/smithduck/k75f_old/k75f_014.jpg

I have driven (without knowing it) almost 9000km with no clamps on that hose.