Blaster im no good at diagnosing piston carnage lol pic updated light weight piston ;)

Location
Australia
one thing i don't have much exp with is diagnosing carnage, any one chime in feel free this was a wb2 760 64x Front cylinder exhaust side gone - see thru lol.
history of the ski unknown but had 150psi 25mins before this happened ski was being ridden wide open alot in the 25min cheers doooods

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Location
Australia
lol i just pulled the motor turns out i had a light weight piston with a self made boost port :) , but yes it was a stocker.
 
Location
baldwin ny
that hole is stock on 760/1200 pistons. that looks like bad deto and someone just when on riding it untill it just didnt run any more.or lack of oil.
 
Location
Australia
lol i was meant the other side has an extra boost port now.
she had 150psi went for a ride ran fine up to the point where she just stoped.
 
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