Originally Posted By: Boat_Head


I know that the timing is different between the HP's for engines with Tillotson's as my first 25hp started out as an 18HP. That motor is a Frankenmotor.


please elaborate. Ken and i tested that motor out with the bigger carb and found no difference in speed, and it didnt sound like it was reving any higher either. something isnt right, or we'he is missing something.