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how to set timing on 2 stroke?

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  • how to set timing on 2 stroke?


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Answer #1 | 22/12 2013 16:53
Guessing you have a couple of wires crossed. The mag can only go on one way, giving spark, but if the polarity is reversed it's at the bottom of the stroke.
Answer #2 | 23/12 2013 06:51
Check the reed valve. It doesn't sound like it's closing. It may be located in the carburetor. The reed valve is a check valve. It allows fuel/air mixture from the carburetor to enter the crankcase and be compressed for later routing to the cylinder. When the piston is on the down stroke, it compresses the fuel/air mixture in the crankcase. When the piston is at the bottom of its travel, it exposes a port that allows the compressed mixture to enter the cylinder, forcing out the previously burned fuel. If the reed valve doesn't close, the piston can't compress the fuel/air mixture in the crankcase. Google "2-stroke engine theory of operation"

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