I everyone 1st of all I'm new on this forum. I have a blaster 03 with oil injection system still on.. I have my bike since oct 2014 It always had poor performance at WOT.. I used to run it with 91-93oct gas.. Last year I had my engine seized I was running around in a field was about 90-95° raining when it happened.. And this spring I changed piston/rings it was running exactly the same as before.. I run about 4 fuel tank and again engine seized while I was WOT... I was racing a straight line about 2miles then stop few sec everything was right and on my way back I did like 200feet then done.. I read a lot about jetting.. air/fuel mix plug chop etc.. I don't even know what is my jet size.. I'll check that tomorrow.. I have an fmf pipe but I don't know which model.. Anyone is got an idea of what could be my problem? And any recommendation on oil to be used? Want something not too expensive.. and should I take off the oil injection and start with premix?