Okay so I have an 02 blaster , I had to rebuild the top end when I got it , I got a brand new wiseco piston and oem cylinder and head , cosmetic gasket kit and boyesen reeds . I cleaned everything up and put it together and i did a leakdown test and it was all good checked the jetting and it was all good , i started breaking it in (did heat cycles and retorqued ) rode it very easy for about 5 minutes and the piston blew up , I couldn’t believe it . So I took it apart and cleaned everything up again and put a fresh hone on the cylinder and bought another piston , i got it all back together the same as before and got about 5 hours of ride time and It blew up again , I’m not a novice to two stroke top ends but I’m baffled , both times it completely blew apart the intake side of the piston , the rest of the piston looked fine both times . What could possibly cause this ? Can upload pictures of piston if that helps .