Ok so first of all I am building my Azusa minibike frame engine everything I am using the predator 212 and put it on it i tried a torque converter but was to much power couldn't even pull the throttle it would wheelie right off the bat but I dont really know how to setup the throttle so i'm kinda screwed there ($70 wasted) So I'm probably going to have to use a normal clutch but my Ideal range of speed is to hit 35-40 but i'm getting ready to purchase a clutch but not sure what to get do I get a 12 tooth or 13 tooth which one would go faster I also have a 72 tooth back wheel sprocket. Also my predator engine shakes extremely bad I do have the engine on 3/4 inch spacers but its tightened very well heck some of the bolts from different parts of the frame are shaking loose I've only ran it about 1 hour out of the 3 hour break in period is there something wrong with it? If you guys could help that would be awesome thanks!