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Old 09-07-2007 | 01:51 PM
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Cyclic Hardover
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Default RE: evolution 46 low speed needle

ORIGINAL: cvedral

I took the carb apart to clean and didnt check how many turns out. Anybody know?

Doesn't really matter what they were. Just open the barrel to the approximate position for an idle, then close the high end needle. Then attach a fuel line to the nipple on the carb and at the same time, blow into the tube and open the low end until you here a hissing noise. Your low end is now inthe ballpark. Then hook it all back up , open the high end a fee turns and start it up and dial it in from their.

Then when you think you have it close, pinch off the fuel line until the engine quits. Listen to the rpms as this happens. if the rpms increase as the engine quits, low end too rich. Rpms just go down as the engine quits, low end to lean. With this , you can have a perfectly tuned engine. But then, I have never owned an Evolution and have no idea what the carb set up is like. So I may not even know what the heck I'm talking about