Mariner dealer gave me gap type plug instead of flat spark ring type like was originally in motor. He said everyone is getting away from the flat gapless type-is this correct? I don't trust his opinion or info-he gave me the wrong gasket twice while I was trying to get exhaust gaskets for this...
I am needing exhaust gaskets for a 20 Mariner 86 model Serial # A911142-have gone to same long time dealer and he has given me wrong parts twice. Gave me Part # 27-41475-8 and it is right(goes next to motor) First time he gave me two of these and the one that goes under the outside part of the...
20 Mariner runs best at high speed once cranked. Hard to crank-hits but won't keep running....keep messing with it and finally will crank usually--while trying to work on it with water muffs I noticed it was not turning over with the battery like it should-as if vapor locked..removed bottom...
I have a 20 hp mariner-about 90 model--runs good at wide open speed but dies atlower speed-after some running new plug inspection showed one plug looked almost asif it hadn't been used-only slight gray/smoke color in one small spot-rest of plug still looked brand new--any thoughts