breaking in a new piston

[ltman86]

ive got a lt250r 86 and i have a new 71.50 bore piston and i rebuilt everything in the motor. i was wondering if i can break in the piston with my fmf fatty and powercore silencer.

[bean86]

Yeah just go up a few sizes on the main to be safe then you can always go down later

[lt250racer]

Yah you'll be fine.... Just stick with the proper break in procedure. Like stated above ^^^^ go a couple sizes richer on the main jet. then once your topend is broken in, get her dialed in.