blaster 240

[drywall boy]

i have a blaster we think is a 240 has all racing and after market stuff like lrd pipe and silencer 34mm racing only sudco jp carb does not run like it should wont even bring the front end up and it has 119 psi of compression seems a little low does anyone know what the psi should be i do know the guy i got it from said the only thing stock on it was the frame but he just got it from his buddy who raced it a lot and said he had made it into a 250 by doing a lot of work to it but he doesn't know for sure if it had a 240 big bore kit or it got bored .40 over or possibly both

 

[4cfed]

i have a blaster we think is a 240 has all racing and after market stuff like lrd pipe and silencer 34mm racing only sudco jp carb does not run like it should wont even bring the front end up and it has 119 psi of compression seems a little low does anyone know what the psi should be i do know the guy i got it from said the only thing stock on it was the frame but he just got it from his buddy who raced it a lot and said he had made it into a 250 by doing a lot of work to it but he doesn't know for sure if it had a 240 big bore kit or it got bored .40 over or possibly both

only way to find out for sure what size it is, is to pull the head and micromiter the piston to find out the mm... also at 119 psi.. yes thats low but still runable.. best bet is to pull the cylinder off, and get it honed with fresh rings.. should cost under 100 for rings and hone,

thats to ''freshen'' it up, that wil get your compression back up.. even at 119 psi with a bigger carb and a lrd pipe it should still wheelie no problem!!!

getit honed with fresh rings now before it gets to wore and required a bore and piston