BMW K bikes (Bricks)

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1Back to top Go down   Lubricating trottle wire Empty Lubricating trottle wire on Fri Jul 07, 2017 9:31 pm

SigurdH

SigurdH
active member
active member
My trottle handle only move slowly when returning to idle. Is there a special way to lubricate the wire?

    

2Back to top Go down   Lubricating trottle wire Empty Re: Lubricating trottle wire on Sat Jul 08, 2017 12:11 am

RicK G

RicK G
VIP
VIP
The OEM cable is Teflon lined and should not need any lube but if it has been done with some oil it is likely to have gathered dust and dirt so may need cleaning. If you have heated grips that are genuine BMW then remove the right grip and make sure the cable to the heated grip has not bunched up at the end of the handlebar. I have had to fix the bunched up cable twice in about 10 years on my wife's K75.
Also it is quite possible the handlebar under the grip and the gear mechanism under the plate next to the master cylinder need some moly lubrication as it does dry out and cause the grip to get sticky.


__________________________________________________
"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 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

3Back to top Go down   Lubricating trottle wire Empty Re: Lubricating trottle wire on Sat Jul 08, 2017 1:23 am

Laitch

Laitch
Life time member
Life time member
The grip might also have been pushed onto the throttle tube far enough for its flange to make contact with the cable housing creating friction that slows its return. Pulling the grip away from the housing slightly will remedy that.

Lubricating trottle wire Thrott12


__________________________________________________
1995 K75 77,000 miles
Lubricating trottle wire Usa-lo10
    

4Back to top Go down   Lubricating trottle wire Empty Re: Lubricating trottle wire on Sat Jul 08, 2017 10:41 am

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Not only was my throttle return sluggish, but I was blowing Fuse #1 when I used the heated grips.  Turns out the master cylinder/throttle on my K75RT had been pushed onto the bars so the heated grip wire was pulled against the end of the bars wearing away the insulation.  After I repaired the worn insulation I slid the assembly out about 3mm. 

Problem solved.  No more electrical problems and a snappy throttle return.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

5Back to top Go down   Lubricating trottle wire Empty Re: Lubricating trottle wire on Sat Jul 08, 2017 11:49 am

indian036

indian036
Life time member
Life time member
There is a screw that applies friction to the throttle grip that reduces effort to maintain a throttle position. Not quite a cruise control, but I find them useful.
https://www2.munichmotorcycles.com.au/product_info.php?cPath=2804_1698_2204&products_id=565

If one of those is on your bike, you will see it under the handlebar throttle housing. Remove it and see if there is a difference.

Many bikes didn't have this, so it may not be your problem, but it would be annoying to do lots of other harder things if that is the problem.

Bill


__________________________________________________
1985 K100RT  VIN 0028991  My original Very Happy   (Historic rego)
1985 K100RT  VIN 0029036  BOB the Blue Old Bike  (Historic rego)
1990 K100LT  VIN 0190452  Work in progress
1984 K100RT  VIN 0023022  Work needing lots of progress

1986 K100RT  VIN 0090542  Work needing lots and lots of progress
1993 K1100LT  VIN 0183046  Work in progress
1993 K75S  VIN 0213045  Newest toy, slightly non-original
    

6Back to top Go down   Lubricating trottle wire Empty Re: Lubricating trottle wire on Sat Jul 08, 2017 12:36 pm

duck

duck
Life time member
Life time member
All the 2V Ks have slow throttle return.

What I do is clean out the old grease in the cog of the throttle parch and then lubricate them with silicone spray.

Take out the big Phillips screw next to the front master reservoir to take off the plate above the cog to access the cog.


__________________________________________________
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 (x2)
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
    

7Back to top Go down   Lubricating trottle wire Empty Re: Lubricating trottle wire on Mon Jul 10, 2017 9:34 pm

SigurdH

SigurdH
active member
active member
@RicK G wrote:The OEM cable is Teflon lined and should not need any lube but if it has been done with some oil it is likely to have gathered dust and dirt so may need cleaning. If you have heated grips that are genuine BMW then remove the right grip and make sure the cable to the heated grip has not bunched up at the end of the handlebar. I have had to fix the bunched up cable twice in about 10 years on my wife's K75.
Also it is quite possible the handlebar under the grip and the gear mechanism under the plate next to the master cylinder need some moly lubrication as it does dry out and cause the grip to get sticky.
I have not lubricated the wire, and I do not know if any of the former owners have done so. I just asked because I thought it might be an option. Now, of course, I will not persue that line. I also checked the mentiones screww and the position of the handle bar. There is no screw by the main reservoir, and the handle is at least 5 mm away from the switch/starter/stop cluster.

    

8Back to top Go down   Lubricating trottle wire Empty Re: Lubricating trottle wire on Mon Jul 10, 2017 10:57 pm

duck

duck
Life time member
Life time member
Lubricating trottle wire Thrott10


__________________________________________________
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 (x2)
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
    

9Back to top Go down   Lubricating trottle wire Empty Re: Lubricating trottle wire on Mon Jul 10, 2017 11:34 pm

MartinW

MartinW
Life time member
Life time member
Do not use WD 40 if you are going to lubricate any cables, apparently WD 40 can break down the Teflon liner. You can use a PTFE based lubricant called Triflow which can be obtained from bicycle shops.
Regards Martin.

    

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