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Author Topic: Throttle cable adjustment  (Read 172 times)
RVFRick
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« on: August 30, 2018, 03:40:07 PM »

I had been having issues with an irregular idle for some time now. My recent discovery is when the bike is nice and hot,  I can rotate the throttle-grip forward and cause the revs drop to 1500rpm (the idle speed the bike settles on 1-2 minutes after start-up but not fully warmed up). I have to apply a fair bit of force on the grip but it's repeatable.

This leads me to believe that the cables need adjusting for more slack. BTW this only occurs once the bike is hot and fully warmed up. I suspect heat expansion differential of the cable sheath or some other component is vs. the the actual steel cable is adding tension and essentially cracking the throttle open at temp.

I have yet to check the service manual but saw an adjustment nut near the throttle grip. I did a quick test and started the bike and fiddled with the nut adding tension and relaxing it but the RPMs didn't seem affected. Do I need to adjust at the carbs and if so is it possible to do without removing the tank??

EDIT: Problem fixed. I adjusted the nuts next to the throttle grip and was able to relax tension on the cable - 2mm of grip freeplay now.
« Last Edit: September 01, 2018, 12:29:56 AM by RVFRick » Logged

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