150 psi stock?? wtf?

blasterman87

New Member
Nov 17, 2008
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ok, rebuilt a nother blasty last week and broke it in, rode it around for about 2 hours it ran great and had lots of power for a stock bike other than a fmf pipe, i did a compression check just to see and 151psi!! i thaught it was wrong so i did one on my blasty with the high compression gaskets/piston and it read 145.. wierd so the reading is right, i did my other blasty and it turned out 120psi so my comp tester is right on.. what would give a stock blasty that much psi?? i measured the head and everything seems to be stock except a vertex piston that i put in...
 
thats weird ive never seen a stock blasty with that much psi... hell mine only has 145 with the thinner gaskets
 
when i first got mine used and was told it would need rebuilt soon i tested it and it had like 155-160 after 5 kicks. its been bugging me wondering what else has been done that its that high since