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Re: Carb/Distributer joint help needed

Subject: Re: Carb/Distributer joint help needed
by a12datto120y on 2014/9/28 10:26:35

check your accelerator pump aswel to see if it squirts fuel into the carby when you hit the accelerator it should be a steady stream

and also look down the carby whilst keeping constant rpm (not pumping accelerator) to see if the accelerator pump is actually dribbling down the carby.

You mention the usual flat spot on carbys it could be a sticking power valve in the top air horn of the carby it should move very freely out it can cause a overly rich or lean mixture depending if stuck open or closed. the power valve is lightly staked into the top body and can be removed and polished with fine sand paper and wd40 (this has worked for me before)

The power valve will also play up if the top air horn is warped excessively which happens when the screws are over tightened you can check this with a flat edge.

These are just a few things i have encountered before and may be worth checking over just to be try eliminate a few things.

Thanks!