Tnmoutdoors
Member
I've got an 88 mariner 50hp serial number 0B308011 and every time I take it to the lake it always starts right up then when I give it throttle I runs like it's running on 2 cylinder I can run it up the lake a couple hundred yard at about quarter throttle then it will make a misfire noise then it will take right of like nothing was wrong then the rest of the day it will run fine. You can shut it off and fish and start it back up and its fine. It's only the first start up every time I take it to the lake. I changed the spark plugs and took it to the lake and it did it. Do any suggestions or advise?