I WAS THINKING ABOUT MILLING THE HEAD TO GET MORE COMPRESSION WHAT SHOULD I GO UP TO ON COMPRESSION? AND RUN REAGULAR 80 SOMETHING OCTAIN PUMP GAS?


RYAN BLASTER YZ490 KE100

 

My wifes Blaster is bored over .060 and has .020 milled off the head. It had stock bore when I first milled the head, the .020 mill made a noticeable difference in power. It runs on 92-93 octane non-oxygenated pump gas.
I don't have a psi on the compression.

Hope that helps

 

I FORGOT TO ADD THAT IT WAS A BLASTER. WHAT COMPRESSION CAN U GO UP TO ON A 2-STROKE AND RUN PUMP GAS? I WAS THINKING ABOUT 9 TO 1 IS THAT A GOOD IDEA ON A 2-STROKE? IF I RAN THAT WHAT OCTAIN WOULD I HAVE TO RUN?