hi everyone i have a baja racer mini bike(same as dirt bug and dbs) but i want to change out the stock motor cause it sucks. i was looking on harbor freight and there 212cc predator engines are only $120 not bad. 212 cc OHV Horizontal Shaft Gas Engine - Certified for All States Except California . i wanted to know what i need and need to do to put it on there.do i need a new clutch do i have to get a new engine plate etc. thanks for your help!