On Wednesday, March 24, 1993 at 3:32:25 AM UTC-5, Dean Youngquist wrote:
I was looking at Honda outboards yesterday and noticed that the 9.9 HP model
seems identical to the 15 HP model except that the 9.9 has an extra bolt in
the throttle linkage which prevents it from opening completely. The gear
reduction ratio is the same on both motors, also stroke, bore, and propeller.

Could I just remove this bolt and have a 15 HP for the price of a 9.9 ?

Dean Youngquist
428 NW 9th Street, Corvallis, OR 97330
Phone & fax (503) 758-6230 anytime

The 9.9hp is 222 cc the 15hp is 350 cc. The 8hp is also 222cc. and the 20hp is 350cc. so the 8hp and the 9.9hp are close as is the 15hp and the 20hp.