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Old 04-24-2007, 08:22 AM   #62
mfuess
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Join Date: Apr 2007
Location: Bedford Texas
Posts: 202
Default Re: Gas engine tuning for newbies....

Quote: Originally Posted by rcflyer
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For my glow engines, I tune the low end by pinching the fuel line (close to the carb) and listen for the engine to speed up. I keep tightening the needle valve a little at a time until the engine no longer speeds up when the fuel line is pinched. Then I open the needle back up just a little. Just wondering if this method works on gas engines too?
NO!

Glow engine carbs are muffler pressure/gravity fed. Your carb is pump driven. You need to remove all GLOW FUEL methodology from your thinking. Especially regarding tuning...
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