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Need to reroute the throttle?

Started by cozy, June 10, 2004, 06:09:48 AM

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cozy

OK so  i got the Sirath bars on and they are great for city riding. When i turn the them flush to the right, the rpm's jump. i have traced this and determined that the throttle cable is being pulled slightly when i turn the bars.  Can this be dealt with outside of rerouting the cable?
Thanks....
**No matter where you go, There you are.**
2001 Ducati M750 Metallic

The Buddha

Do you have cable bind... like the cable itself is getting tugged... If so reroute is the best, else the cable will get stretched, and funny thing is the outer will expand like a spring (cos it is) and that will leave you with a genuine throttle being open condition. If you aren't binding the cable and yanking on the whole cable... then adjust the free play. But Also has anyone else had this happen... Cos I never had this happen, I had clutch cable having too much extra length, and mostly my issues were opposite... too much cable length, cos the bars were so low and narrow.
Cool.
Srinath.
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cozy

When i trace the cable under the engine, If i move it or wiggle it gently it acts as if being pulled and rpm's jump. Basically i found any movement of the cable without twisting the throttle grip now produces more rpms....
Could it be the routing of the slack?
**No matter where you go, There you are.**
2001 Ducati M750 Metallic

The Buddha

OK then add some slack ... The cable should flex a little ... ok make that a lot wihtout RPM increase...
Cool.
Srinath.
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Kerry

Quote from: seshadri_srinathhas anyone else had this happen...
Yep.  After I added the GenMar bar risers (undo bar clamps, mount risers, reclamp bars - no adjustment to cables) the RPMS would go up when I turned the bars.

I routed the cable so it didn't go in between the forks, and the problem disappeared.
Yellow 1999 GS500E
Kerry's Suzuki GS500 Page

davipu

nope didn't have this problem, but that crappy black paint made my throttle sleve stick

The Buddha

Oh no... more people trashing the bars... the Good name of the Srinath is getting dragged through the mud...  :mrgreen:
Cool.
Srinath.
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The Buddha

Quote from: davipunope didn't have this problem, but that crappy black paint made my throttle sleve stick

That's Extra for cruise control... That paint was there just to prevent it from rusting.... the stuff I didn't paint, in under 24 hours it had a smattering of rust... eeeewwww.
Cool.
Srinath.
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I run a business based on other people's junk.
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cozy

Kerry,
Just in case, how did you end up routing the cable?
Thanks...
**No matter where you go, There you are.**
2001 Ducati M750 Metallic

Kerry

I undid it from the carb end, pulled it forward until it came out from between the forks, and then put back in the same way, only to the outside of the forks.
Yellow 1999 GS500E
Kerry's Suzuki GS500 Page

pdg108

I have the throttle routed same as before, just had to fiddle with it a bit to make sure it had a clean shot back through the forks and under the tank.  So it wasn't binding on any wires and things.  Took about 1 minute.  Guess I got lucky?  :)

I never had paint problems either, of course I sanded a little and put a coat of satin black on them. :dunno:

There, the Srinath name is saved.  ;)  :thumb:
The GS500 is the safest bike on the planet, it can just barely kill you.
"I did absolutely nothing, and it was everything I ever thought it could be."

davipu

it works up to 5k and the vibrations overcome the sticky paint.  I like it better than the normal action though.  there is alot less stress on my wrist and the speedbump blip thing doesn't happen nearly as much.  :cheers:

GRU

my bike's doing the same after i put clip-ons.....i tryed moving a little and nothing...i'm gonna have to take some stuff a part  :x

johncam4

same with the sm bars....just havent gotten around to playing with the cable routing

dublinjail

Yup, happened to me when I put on the SM bars. Then i snapped the throttle cable adjuster with pliers cause it was stuck. After the new cable went on w/more slack the problem went away. Which involved removing the tank, which I'd prefer to not do again.

cozy

Ok  so more slack was the ticket. I noticed i didn't have enough free play anyway - 3 -5mm.  Thanks everybody! :cheers:
**No matter where you go, There you are.**
2001 Ducati M750 Metallic

EvilScooby

Where the throttle cable connects to the handlebars. is it suppossed to be tight?

I can wiggle and move it around and it causes my bike to rev up.

Is there a way to tighten it up?
The Continuum Transfunctioner Is a mysterious and powerful device.
Whose mystery is exceeded only by its power

MarkusN

That depends on how much you have to wiggle there to get a reaction from the engine. The outer tube of the throttle cable is just stuck into the respective receptacles. So it is natural that you can pull it out, and in doing so you pull the throttle cable. However, there should be some throttle play (some slack that you have to take up at the throttle grip before you get a reaction from the engine.) If that play is too small, the bike will be very sensitive to manipulations such as the one you just described.

If you can swing your handlebar from stop to stop without any reaction in RPM your adjustment is not too tight.

EvilScooby

I can swing to the left and no change, when I swing to the right my rpm's rev up
The Continuum Transfunctioner Is a mysterious and powerful device.
Whose mystery is exceeded only by its power

The Buddha

Quote from: EvilScoobyWhere the throttle cable connects to the handlebars. is it suppossed to be tight?

I can wiggle and move it around and it causes my bike to rev up.

Is there a way to tighten it up?

OK I believe any wiggle of the whole throttle cable, not just the inner... should not cause it to rev up... Wiggle, not yank it like a grizzly... shake it side to side or up and down... and revs should stay.
Cool.
Srinath.
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