Think bike may have blown up :(

Hey, i was setting up my bike and may of put a little too small jet in and revved full thorttle down road and torque spring popped in clutch so replaced that but now wen i start hardly any compression, do you recon just piston ring gone or all piston fucked?

 

take th head and barrel off and have a look, could be a blown gasket, or just worn rings, if the barrel looks clean you will likely get away with new rings

 

okay thanks very much ill rebuild top end tomorrow and investigate ill let you know how i get on