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Old 09-13-2010, 04:41 PM   #4
Rosati
Not Yet Wild
Yamaha
 
Join Date: Aug 2010
Location: Texas
Posts: 59
Default Re: G1 Compression test.

A true compression test is done with the engine at operating temp and the throttle tied wide open. Running the test cold will always net an incorrect reading.
To test if rings are worn excessively, put a teaspoon of oil into the cylinder and roll it over again. If the reading gets higher, your rings are worn.
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