I have a 200 model 20hp mercury 1978 tiller with bad starter. I am thinking of changing to a pull start. I can get a recoil starter and a top cowling for motor from a fellow off a 1976 model 200. Need to replace the top cowl because mine don't have hole for recoil rope. Have not looked yet but I may need flywheel also do to mine may not be compatable with recoil starter. Does anyone know if these parts a interchangable. This motor was remote el. start at one time, but a tiller handel was put on and they must have left the cowling off to start it with a rope. Any help or information would be great. Thanks