shager64

Joined:
2010-03-19 02:38:44

Posts: 3

Posted:Saturday 19 February, 2011 3:05 AM

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Subject: Re: high revving in neutral and when stopped

5000rpm is excessive. your answer from mechanic didn't help, get a new mechanic. or find a service manual for your model. there adjustments that can be made by the turn of a screw. you just need to know which one and how much and when. a service manual will take you through this procedure. if that doesn't help then yes maybe your carbs need rebuilding. there are rubber diaphrams top side of carb, and O rings on the jets that degrade over time. again get a service manual theres much valuable info to be had, and gives a bit more confidence to work on your own bike when you can read and study your task before "goin' in" good luck!

Jan Sallings

Joined:
2010-12-25 05:13:25

Posts: 4

Posted:Friday 25 February, 2011 2:24 PM

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Subject: Re: high revving in neutral and when stopped

Check your throttle cable. Sometimes the two cables coming out of the splitter section get pulled out of the black plastic case that houses the one into two cable section. They get stuck and hold the throttle open. If that's ok, make sure there is slack at the adjustments on the handlebar section of the throttle, and the two adjusters on the carbs. If they are too tight, the engine will rev. It is not common on these bikes, if you know what you're doing. Watch the throttle shafts on the carbs as you open then close the throttle to see if the shafts close all the way. Also, make sure they open simultaneously. Hope this helps. Bad diaphragms won't cause this problem.