Well it's not that engine is brand new.
Now some of the power produced by the engine is being absorbed by urethane bushings, instead of being transferred to the tires to be converted to forward motion.motors arent balanced, right? i thought abt using pin type urethane shock bushings tween motor and plate. the bushings are cheap enough, but would take... one on top with washer over it, one between motor and motor plate and another under motor plate (with washers here and there) and then...??? drill out the motor mount bolt holes to 3/8" and use 3/8" bolts and blue thread lock. get bolts tight, but not so tight it splits the shock bushings?