carlntexas said: (quoted from post at 13:53:30 12/11/12) I did a compression test on my 49 8N converted to 12v That I've owned for the last 29yrs. Tested with throttle wide open and breather tube disconnected here are is what I got.
I was expecting better numbers because it starts up easy without using choke, has good power, uses very little oil ( probably leaks more out of governor arms than it burns ). I'm not planning on doing anything to it just wanted to get some of you 8N gurus thoughts on these numbers. I just bought this $20 compression tester on Ebay and maybe it's not accurate.
Looks like valve not ring leakage to me - with the exception of #3 you only see 5-10 PSI improvement on the wet test and it's pretty even across the board. If its runnig OK and getting your job done I'd put the tester in the tool chest and fine something else to spend my time on.
This post was edited by TheOldHokie at 10:28:01 12/11/12.
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