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I've got a question,I did a compression test on my motor and i had approximately 110lbs in each cylinder is this low?? . what is the normal compression for the yamaha 440?
 

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It's on the low side if you warmed it up before testing it.
If it still starts on the first pull you can probablely still run it no problem.
.100 is bad low.
Shoot a bit of oil in the cyd. if it goes up new rings will fix it.
It's a 1979 so 120 may be
the best you get.
 
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