piston?

[ultranutz]

2.5 merc one of my pistons has a clean spot dead center of piston the size of a half dollar whats going on? all others ar nice.

[Dave Strong]

Got a pic.

Dave

[ultranutz]

no picts just looking thru the plug hole,a bud of mine said its leaning out an to clean that carb.

[perfmarine1]

no picts just looking thru the plug hole,a bud of mine said its leaning out an to clean that carb. Good place to start,if left alone you will end up with a hole there.