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K100-forum.com » Technical, repair and troubleshooting » Frame, fairing and wheels » K75s Fairing rattling

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1Back to top Go down   K75s Fairing rattling Empty K75s Fairing rattling Sun Aug 27, 2017 10:42 am

JGT

JGT
Platinum member
Platinum member
Whilst going over rough patches, pot holes etc. in the road the fairing knocks and rattles. Looking at the exploded views in the Clymer manual it appears to be secured, quite a way back, at 4 points via bolts and rubber grommets, so quite a lot of unsupported weight ahead of the fixings. As the bike is now 30 years old would replacing these grommets stiffen things up and improve the situation as its no 5 minute job taking the fairing off. Thought I would seek advice first before purchasing anything. John


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1992 K75
    

2Back to top Go down   K75s Fairing rattling Empty Re: K75s Fairing rattling Sun Aug 27, 2017 10:55 am

charlie99

charlie99
VIP
VIP
yes ...all  things rubber do shrink - perish
keep in mind that there are usually large washer type thingys used for the mounting of the rubber insulators , I wonder if there are any missing ?

it is quite common that the brackets crack as well , especially with a drop event

good luck !!


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
1987 k100rs ########   "Red"  - (red sports rs TWB style )
1989 K100rt #009637   "Black Betty"  (naked rt ala Nigel , now sporting an rs main fairing )
    

3Back to top Go down   K75s Fairing rattling Empty Re: K75s Fairing rattling Sun Aug 27, 2017 1:19 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
The fairing on my K75S moves around a lot as well.  I think the "S" designates "swinger".   With so much mass cantilevered out there it is no wonder it is hard to restrain it.  Also, the distance amplifies the motion so a couple mm of movement at the mount translates to cm out near the speedo and windshield.  I've gone through all my mounts carefully tightening and checking for looseness and can find no real reason for all the movement.  Seems to be the nature of t he beast.


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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
    

4Back to top Go down   K75s Fairing rattling Empty Re: K75s Fairing rattling Sun Aug 27, 2017 10:50 pm

duck

duck
Life time member
Life time member
A lot of the K75S bracketry is plastic so it moves around a bit more than it would if it were metal. The cluster mounting on K75Ss is very prone to being wobbly.


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Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

5Back to top Go down   K75s Fairing rattling Empty Re: K75s Fairing rattling Mon Aug 28, 2017 4:58 am

JGT

JGT
Platinum member
Platinum member
Interesting. Will replace the grommets when I dismantle it. I can live with the movement, its the knock, knock that irritates. Will try and find out what is hitting what and hopefully eliminate with the aid of rubber insulation. John


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1992 K75
    

6Back to top Go down   K75s Fairing rattling Empty Re: K75s Fairing rattling Mon Aug 28, 2017 5:26 am

92KK 84WW Olaf

avatar
Life time member
Life time member
Very important to get the bracket to frame mountings tight and in good order.

The fairing to bracket mounts must have good grommets and must also be done up tight. I went through all mine on the RT and it made a big difference, grommets were old/missing and nuts were missing in some cases.


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1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

7Back to top Go down   K75s Fairing rattling Empty Re: K75s Fairing rattling Thu Aug 31, 2017 7:34 pm

WoodyAUK75

WoodyAUK75
Silver member
Silver member
Can you move the fairing up and down by hand? I had two holes cracked out of the part that mounts to the headstem, and it would not tighten properly.

    

8Back to top Go down   K75s Fairing rattling Empty Re: K75s Fairing rattling Fri Sep 01, 2017 5:17 am

JGT

JGT
Platinum member
Platinum member
WoodyAUK75 wrote:Can you move the fairing up and down by hand? I had two holes cracked out of the part that mounts to the headstem, and it would not tighten properly.


Yes I can. That sounds worrying. Still waiting for the rubber parts to arrive from Balderstones before I investigate. John


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1992 K75
    

9Back to top Go down   K75s Fairing rattling Empty Re: K75s Fairing rattling Fri Sep 01, 2017 7:13 am

MartinW

MartinW
Life time member
Life time member
My 1992 K75s fairing is solid, minimal movement, unlike instrument pod which has a fair bit of movement.
Regards Martin.

    

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