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thats not a valid serial number
The dry weight of a 2002 model, 75hp Mercury outboard 4 stroke, is 386 lbs.
1984
where can i find an owners manual for a 2003 75HP mercury outboard
A 75 hp Mariner, serial number OC282117 is a 1990 year model.
It's your switchbox, I just did this on my 75hp 4cylinder.
Jew Jew
I have been running mine on a 50:1 ratio for a few years now, and have never had a problem
40to1
1983
An 75 hp Mariner outboard, serial number OB346777, would be a 1988 year model, with a dry weight of 265 lbs.
The engine may not be very good or too small and you may be giving it too much gas, thus flooding the engine. I'm not sure but this could be the problem.