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1990 Searay Mercruiser 140 IO

terry1111

New member
"I just bought this boat and i

"I just bought this boat and it started out well, cruised at about 45 mph. Now it hesitates on acceleration and sometimes dies altogether. Even in neutral it dies on acceleration. I can get it running by working it slowly but the top speed is only about 30 now?? Spark plugs? It almost sounds like it is missing on one cylinder. Any suggestions?"
 
"I think I will change the plu

"I think I will change the plugs, not sure how old they are and add some additive to the fuel to get the water out?"
 
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