rev

I have a new gen 3 212 predator with the gov removed arc rod wisco piston 252 nrracing cam ported head 26 pound valve springs billit flywheel keyed to 32 degrees of timing bored carb and header. I have a 30 series tq with a racing belt. this bike will throw you off of it if your not carefull ...

I have a mild 196cc with 0.020" billet rod, ft honda 1mm rings, billet 6619 fw,18lb springs as well as the usual stage 1 stuff. I noticed that if I free rev the bike with the wheel off the ground there is small amount of blue smoke. Is this from the rings not sealing, sloppy valve guide or...

Hello I have a Briggs (flathead) 5hp engine on my mini bike and it seems like it is not revving all the way is there something I can adjust to make it rev higher for greater speeds? Thanks

Hey guys, so ive got an rpm gauge made for a car id like to setup to my motor, ive got it hooked up to a motorcycle battery and it lights up. to get an rpm signal theres one wire, the only way i can find to get a signal is to hook it directly to the spark plug wire so when i pull start it it...

so i just put the OldMiniBikes hi flow intake kit on and upgraded to a 36 jet at 140 emulsion tube now it will not idle and it doesnt rev as high, sounds like it has a rev limiter sort of noise. why is it doing this?

Hi! New on the forum, not the planet :) I've searched the site and the Google pretty hard, and have a few questions for the experienced GX/Clone guru's. I want to build a couple of governed clones, to make lots of power without major revs. Maybe 4k tops. Cheap! I have a pair of new 212's...