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1988 merc 99 2 stroke surging problem

deltaram

New member
"Hello all
I have a 1988 merc


"Hello all
I have a 1988 merc 2 stroke and it starts fine, problem is that at times it runs great at wot. them sometimes you go wot and it does not pick-up rpms, it acts like a 4hp then runs strong for seconds then goes back to running slow. about 10 minutes of this it clears itself and is strong for an hour. very speratic, I think its the carb. It was also stored for 3 years. Thinking of running some strong carb cleaner with the fuel, What do you all think.
Thanks in advance.....Ron"
 
it might be a spark plug going

it might be a spark plug going bad/ its fluding one cel.or it can be a burend val.or the pisten rings geeting bad that would couse it
 
"I would expect a "surge&#

"I would expect a "surge" to be either a lack of air or fuel - unbalanced mix - most likely the result of build-up, crud etc in the carb.

Time to remove it, clean/rebuild..."
 
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