RCU Forums - Carb adjustment

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skeeter_ca

09-03-2006 11:58 AM

Carb adjustment

I have a K&B 40 that i am reassembling after cleaning. What would the base needle settings on the carb be. I need a starting point so i'll be in the ballpark.

w8ye	09-03-2006 12:35 PM

RE: Carb adjustment

About 3 turns out

skeeter_ca

09-03-2006 12:51 PM

RE: Carb adjustment

That would be the idle mixture screw right? What about the top screw on the carb. Is that the high speed adjustment?

w8ye	09-03-2006 01:04 PM

RE: Carb adjustment

There's several different carbs on the K&B 40. None of which has a top screw that does anything but change the throttle minimum position in order to change the idle speed.

http://www.mecoa.com/kb/40/40-parts.htm

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