[case-racing]

ok so i have compression and the bike goes ok at full noise but has no mid power, and doesn't pull like it used too, when its facing down hill on a moderate slope it rocks over in gear so it is losing compression somewhere, I was going to change the rings in hope it might give me some more compression and more power, my nikasil is ok i suppose but was i was thinking is do i put a new pison and rings but do i bother with the nikasil, has anyone gone to a bigger piston in the 300 with no nikasil and if so what did you use and how did you do it. not all 2 strokes run it so i was wondering why we do. any help would be appreciated.

cheers bill