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1Back to top Go down    throttle cable 1985 bmw k100 on Sat Jun 28, 2014 2:59 am

gaylandt

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My throttle cable needed replacing on my 85 K100. I'm guessing it had the original cable (3273 1 450 218 9). The local dealer said the number wasn't a good one so he looked the part up by application and I got a 3 73 1 457 016 and went about taking the old one out to replace it. When removed the new cable obviously would not work so I made a trip back to the dealer. From what he could determine and what I've read since there was a recall at some point. Any way he ordered me 4 parts (1) a 13541461136 bracket (2) a 32731457017 bushing (3) a 32731457101 bolt and (4) a 32731236644 nut. The bracket was easy to figure out what to do.The other numbers make up an adjustment at the grip. I'm struggling to get the item installed correctly and the drawing he provided me doesn't help me much. Has anyone gone through this? I can't seem to determine the correct function of the nut.

    

2Back to top Go down    Re: throttle cable 1985 bmw k100 on Sat Jun 28, 2014 3:15 am

RicK G

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The only nut I can think of is used as a locknut on the adjustment at the switch block/mastercylinder assembly. The original cable had the adjuster midway in the cable. Those old cables were subject a recall and were supplied and fitted free for about 10 years but that expired some time ago.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

3Back to top Go down    Re: throttle cable 1985 bmw k100 on Sat Jun 28, 2014 3:37 am

gaylandt

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that's about what I had thought but didn't want to screw it up. I appreciate your reply

    

4Back to top Go down    Re: throttle cable 1985 bmw k100 on Sat Jun 28, 2014 3:47 am

blaKey

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This may help...

http://hrsbstaff.ednet.ns.ca/bvogel/K100/download/K100-service-bulletins-and%20special-tools/03%2Epdf


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K100RS 1986 RED!
K100RT 1987 (now nekkid with red bits)

Remember Rule No. 6
    

5Back to top Go down    Re: throttle cable 1985 bmw k100 on Sat Jun 28, 2014 4:07 am

gaylandt

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yes it does, thanks

    

6Back to top Go down    Re: throttle cable 1985 bmw k100 on Sat Jun 28, 2014 7:28 am

Inge K.

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I would guess this also could become useful.


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

7Back to top Go down    Re: throttle cable 1985 bmw k100 on Fri Jul 04, 2014 5:11 am

gaylandt

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very helpful, I'm having trouble getting the grip to close down on the adjuster

    

8Back to top Go down    throttle cable 1985 bmw k100 on Fri Jul 04, 2014 9:16 am

RT

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Same bike, same problem. Got it mostly sorted but seem to have a lot of slack at the throttle end where the adjuster is. I can't get it tightened up enough. Been riding lots anyway, just annoying.


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Suzuki V Strom 650DL 2011. Gasp, chain driven.
    

9Back to top Go down    Re: throttle cable 1985 bmw k100 on Fri Jul 04, 2014 10:33 am

charlie99

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@gaylandt wrote:very helpful, I'm having trouble getting the grip to close down on the adjuster
i notice the same ,,,even thought that 1 link out of the throttle chain to cable might help with the slack takeup

but perhaps there is a slight difference in the toothed gear connecting the throttle grip to the cable ???? i wonder if anyone has changed that for a new part and seen any difference ????


just found this on the motobins site

might help


Part No.61091
BMW Part No.
32 72 1 457 036
K100/RS/RT/LT. K75/C/S (NOT 16 VALVE). R100GS.R100GPD PD 1991 ON. R100R/1991. ONLY FOR USE WITH MODIFIED THROTTLE TOP NO 61139 EACH

looks a bit shorther chain section to me ...what do others think ?
seems you need this part as well


Part No.61139
BMW Part No.
32 72 1 457 037
THROTTLE TOP COVER PLATE K100/RS/RT/LT, K75/C/S & PARALEVER TWINS 1991 ON. (LATER MODIFIED TYPE USE WITH CAM 61091)


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10Back to top Go down    throttle cable 1985 bmw k100 on Fri Jul 04, 2014 1:15 pm

RT

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Exactly Charlie, my chain seems to have too much play in it as well. Might have to give it a go.


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Suzuki V Strom 650DL 2011. Gasp, chain driven.
    

11Back to top Go down    Re: throttle cable 1985 bmw k100 on Fri Jul 04, 2014 3:36 pm

gaylandt

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did anyone have to do a slight alteration of the hole where the adjuster fits in to the grip? When I try to place the adjuster in to the grip where it will lock in place the top will not slide down enough to allow the hole to align for the bolt to start.

    

12Back to top Go down    throttle cable 1985 bmw k100 on Sat Jul 05, 2014 1:06 am

RT

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Sorry mate, I didn't have that trouble, but had a lot of trouble getting the chain to stay put whilst I tried to get the cap and master cylinder back on. Ended up calling in a mate to hold everything.
Hope you figure it out.
RT


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Suzuki V Strom 650DL 2011. Gasp, chain driven.
    

13Back to top Go down    Re: throttle cable 1985 bmw k100 on Sat Jul 05, 2014 3:39 pm

dutchie

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isn't there a marking like on the r80rt


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K75RT 1996
K100RT 1986
    

14Back to top Go down    Re: throttle cable 1985 bmw k100 on Sat Jul 05, 2014 4:03 pm

Inge K.

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@dutchie wrote:isn't there a marking like on the r80rt

Yes it is, it's also shown at the last page in the link in post #6.


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

15Back to top Go down    throttle cable 1985 bmw k100 on Sun Jul 06, 2014 12:23 am

RT

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Yes I have lined up the marks correctly, just seem to have extra chain length to fold around in there, and adjusting the slack seems to do nothing. Anyway, hi jacked this one enough I think.
Cheers.


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Suzuki V Strom 650DL 2011. Gasp, chain driven.
    

16Back to top Go down    Re: throttle cable 1985 bmw k100 on Sun Jul 06, 2014 1:47 pm

gaylandt

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Thanks to all you fine folks for your responses. It's back together and working so far. The new cable didn't fix one issue I thought it might. I've had this bike since 2000 and the throttle has never gone back to idle if released unless you rolled it back yourself. It's fine out on the highway as it's instant cruise control but this is the only bike I've ever had that when the throttle was released wouldn't roll back on its on.

    

17Back to top Go down    Re: throttle cable 1985 bmw k100 on Sun Jul 06, 2014 2:01 pm

RicK G

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Make sure the grip isn't binding on the switch block. If the grip gets pushed too far onto the throttle tube it will bind.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

18Back to top Go down    Re: throttle cable 1985 bmw k100 on Sun Jul 06, 2014 2:05 pm

dutchie

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on the underside off the throttlehandle maybe there is a throttle locking bolt, look like this.


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