My outboard is evinrude fastwin 18hp(1967).Yesterday it worked wery well, but today when i started it, after 10 minutes of working,the motor does not reach higher rpm and it cant reach much power than on half of gas. The carburetor is clean and the plugs are ok but the isolation on both ignition coils is cracked. Is this maybe a problem? I read in one topic that the price of one coil is around 15$, is this true?
