So usual run in for a Go motor, alfoil on head and heat gun, start, adjust lsn so it just idles, a tank through on the box to flush it out (not too long) then straight on the ground, slow figure 8's for a tank or 2 gradually building revs for another 4 to 6 tanks then its time to lean on her. Replace rod and rear bearing after say about 4 litres.

Badrun, GRP plugs should work ok, its each to there own really, I know guys running Go's, LRP's, OS's and Ninja's plugs. I personally prefer OS Plugs (a P3 for break in to make getting an idle dead easy, then swap to P4 or cooler), and from memory MM crew use LRP or Go plugs predominantly. It really is a personal preference thing.

I am deeply envious of you boys with your new MG66's. Seeing the power and fuel economy for myself at the truggy titles was an eye opener and Flanno's motor running past 15 minutes was just plain crazy. I'm breaking in the .25 pro this weekend with turbo head button for the RC8T, should be fun.