id hate to say this but you made a bad choice, i wish you looked at the reviews first, although bgf doesnt manufacture the engines, the quality of the engines are cmplete junk, i had bought 2 motors from him over the last 3 years, and every one had several in-repairable issues, there was holes in the cylinder and on one kit the engine sprocket was made wrong, and several parts were missing and upon contacting him , he did not offer to send me the missing parts (u-mount and sprocket bolts). i would advise you to not buy from him ever again, and also! this is very important: make sure to tighten the head bolts that holds the top on the engine, because they are all loose on every engine i bought