1986 85 hp fouled plugs

[pugerz]

engine was running fine, thought i would run some mercury engine clean in the motor to get rid of carbon. First time out, noticed slight miss at WOT no biggie, must be the engine clean. Second time out, hard to start, dies if i give it gas, bummed, stop trying, use other motor. I get home carbon all over plugs. OK, I should have cleaned them from the first time, my mistake, must have been the carbon. I clean them go back out today. Hard to start, dies if i give it any gas. Ok, plugs must be fouled again. Use my trolling motor, fish, get home, plugs now oil fouled. im baffled. Im glad I have a 1946 johnson trolling motor that runs to get me bye. I wish i had a Force. Dump the gas?

 

[jerryjerry05]

Re: 1986 85 hp fouled plugs

Add it through the tank or the carbs? Check for water in the gas.
Ethanol has a way of screwing up carbs and hoses.J

 

[pugerz]

Re: 1986 85 hp fouled plugs

I added it through the gas. Engine hates it I think. Spark plugs fouling out with carbon first time out and couldnt get it to run when i put it in gear. gave up. Second time out, plugs fouled with oil, same results, engine would not run when i put it in gear. gave up. Have to choke motor again after initial start to get it started again. Probably going to dump gas out and put new in see if that dont cure it. I wouldnt think motor would be so finicky about it. Not sure how you blow out carbon during a decarb, if the plugs foul the motor and you cannot get it to run. Must be possible, people swear by it. Mine will not even run with 2 oz of engine clean to 6 gallons of gas. Am I missing something here?