hi my 1988 mercury 20hp motor is cutting out at wot. i just replaced the switch box that died. i didnt have this problem before i changed out the switch box. its starts up great idles great but after 4-5 minutes up river at wot(or close to) it just cuts out for a second then you let off and...
i bought a 88 20 hp used it twice ran great my friend took it out on the third time after a short use it died let it sit all night then it started next day. took it out a week later started up ran less than a mile then died sat 3 days and cant get it restarted. fuel is good but no spark(used...