Question about 2005 Honda CB 750

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Note: ...idle screw fully backed off... My 1982 Honda CB900 C is idling too high - after warm-up - 2-2500rpm. At start-up, it's 1100. The carbs have been overhauled & set-up, pilot screws set from 1.5 to 2.5 turns when trouble shooting - it is hard to adjust them due to the problem - catch22, ha. HELP!!!

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Sounds like the plungers are in backwards,one side has the groove for the idle screw,the other side has an alignment slot.when you look into the top of the carb with the plunger out,you will see a pin sticking out of one side,that pin must line up with the slot on the plunger that runs from top to bottom

Posted on Jul 29, 2009

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You are right, this is dangerous and expensive. I suggest you have a Yamaka shop take a look at your motorcycle.

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