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1984 merc 50hp TDC

Qbanredneck

Contributing Member
Hi all
just curious while doing some trouble shooting
i noticed looking in spark plug holes at TDC
my second cylinder (piston) from top had very MINIMAL carbon the others have good amount. I have done seafoam decarb on them.

just curious if this means anything?

in addition, if there was a lower gasket leak will my fourth piston at TDC be somewhat clean from carbon?

appreciate the help yall
 
Ty sir, appreciate response,
sorry for ignorance but that’s the gasket that means whole power head
needs to come off to replace?
 
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