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if that profile pic is you, i have total confidence you are up to the task, looks to me you have been working on anything and everything and have total confidence you will figure it out. A country boy will survive. we will assist anyway we can. ( btw i am a redneck ) jmo
OMC built both Evinrude and Johnson motors. The 9.9 is just a derated version of the 15 to comply with lakes that have a 10HP limit restriction without retooling. who knew.
Difference Between the 9.9 & 15hp : When they designed this series of motors, they designed it as a 15 hp and then detuned it with a different carburetor for the 9.9. When the 9.9hp and 15hp came into being in 1974 and up thru 1978, the only real difference between the two motors was the...
Carburetor comparison: look inside the throat and difference is obvious. A 9.9-HP carburetor throat measures 0.625-inch and the 15-HP carburetor throat measures 0.875-inch. There were three difference carburetors offered over the model years (early, mid, and late model production)
Simple, e=mc2 minus the rotation of the earth, taking into account the moons effect on tide, and add 2, just because, heck, your already there with 0 gas burnt. look at you. lol
I remember back in 1969, i went to superbowl 3, watched the janice joplins and the sha na nas battle it out. great game. i think the score was 1 2 3, what are we fighting for, jimis Star Spangled Banner was awsome, WAIT, sorry, wrong venue. my bad.