acceptable level of blow-by?

is there such a thing? particularly on a kitted bike?

ive got some right around the ring gap on my malossi 62cc. compression still runs at about 180psi with sweet low end torque. i just done want to seize this thing when i got up to a 19 phbg.

i cant post pics tonight.

Re: acceptable level of blow-by?

With 180psi cylinder pressure, blow-by is not an issue at 10,000 rpm.

Re: acceptable level of blow-by?

Every 2-stroke has blow-by. It's no big deal, as long as you have enough compression and your piston isn't all burned along the sides.

Re: acceptable level of blow-by?

the is some light carbon buildup below the ring gap. piston doesnt seem scored or deformed, but i fear that might be on its way.

i should have waited until i had the photos ready to post.

Re: acceptable level of blow-by?

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