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I spent $15,000 on a new four-stroke engine that ran fine when I bought it less than a year ago. Now, I can only get 3000 rpm before it starts missing and popping. I miss my two-stroke! What's going on?
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By: Grid Michal
March, 2010

My first thought is that a rev-limiter is kicking in at 3000 rpm. Now, why is the limiter kicking in? Maybe because the oil was changed and the reminder wasn't reset. Maybe because the engine is overheating. Maybe because one of the dozen or so sensors has malfunctioned. The advent of the marine four-stroke has changed things. No longer can we tell what's going on by using our senses. It's all by computer now. Have your tech hook up his computer to the engine to locate the source of the problem. I wish I could do a "laying on of the hands" to give you your answer!

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