Is it true the only difference between a 9.9 and a 15hp is the carb,on the same year models? :
W wick29 Recruit Joined Jul 28, 2003 Messages 1 Aug 4, 2003 #1 Is it true the only difference between a 9.9 and a 15hp is the carb,on the same year models? :
corm Lieutenant Junior Grade Joined May 12, 2000 Messages 1,241 Aug 4, 2003 #2 Re: Early 90's Merc 9.9 nope the diff is 4 cu ins. They are totally diff powerheads.
