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Thread: How to tune an engine?
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Old 05-12-2010 | 02:36 PM
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trainer25
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From: lansing, MI
Default RE: How to tune an engine?
ok so the long needle on the left side (cockpit view) is the hsn, the horizontal screw on the right is the idle speed screw, so what is the 3rd screw for? believe it sits on top of the carb going down
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