Sudden loss of compression in a brand new engine

bikeboi

New Member
hey everybody,
I purchased a brand new 2 stroke engine about a week ago, i was driving at medium throttle, when there was a loud bang, the piston got two good holes in it and is completely trashed. the housing had a small amount of scoring by the intake. i bought a new casing a gasket and piston. any idea how this happened, anything helps thanks.
 
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This is my first engine so i don't know much, but to me it looks like something punched through
 
yeah there wasnt anything missing no bolt or anything, i ordered another piston and cylinder, i've been doing research my guess is the chinese piston was crap and i just pushed it to hard and took a chip out which then caused the other hole, by slide do you mean the choke?
 
yeah that still there, a rock could have flew in there i didn't have a air filter on at the time, kinda regret that now lmao
 
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