have just recently installed a jackshaft on my bicycle... Love this kit....finally received my HS motor and g4 transmission yesterday...I've mounted the motor and tranny on my bike only to find out the transmission sprocket andt the jack shaft sprocket wont line up with each other....other two sprockets are of by a quarter inch or so.....the g4 sprocket is too far inwards....I would need to move the motor over to the left to line these up but the motor mount bracket will only allow me to move it backwards and forwards....anyone have this same problem?