Home › Forum › Ask A Member › Pulsating 15hp detuned down to a 9.9 question › Re: Pulsating 15hp detuned down to a 9.9 question
June 10, 2015 at 2:17 am
#17884
I am not 100 percent on this but think there was more than just a carb difference on these motors, at least on later models. Are you sure this is the only difference on the 1975 models?
Have you tried it with the original 15 hp carb to see if it is present? Or do you have it, hence the de-rate?