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can I increase outboard hp?
trainfan1 wrote: wrote: O.K.: Urban myth or not? I've heard over and over again that everything is the same on a 7.5 h.p. Johnson as on the 15 horse, except the carb. I also heard it's not even the carb, it's just the jets. I have a 1980-ish 7.5 seahorse that just does not have the guts to pop my inflatable up on plane with two people and a full tank aboard. I added those wings, which do help, but still just need a little more. You've heard wrong. That engine is a 6/7.5/8 hp. The conversion you are wishing for is the 9.9 - to - 15 hp, those two are nearly identical except for the carb and, on earlier models, the exhaust tuner. Rob That is the same thing that I heard (9.9 and 15 hp nearly identical). Bill |
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