MEFI Fuel Injection
Diagnostics - Mechanical Correct propeller and drive ratio? –Compare with other similar models –Check ratio versus the label if a problem since first use –Check hub for slipping
Bottom paint added or fouling present –marine growth or barnacles?
Excessive load? –Is this a new problem? –Anchor chain in bow locker? –Dingy or personal watercraft added? –Any new weight added? Reduce prop size by 1 (inch or size) every 1000 additional pounds.
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One of the most common complaints we hear is poor top end performance. If the engine does not meet it’s rated RPM, it will not meet it’s rated horsepower. This leads to trying to troubleshoot a perfectly good engine. Left unresolved it can lead to high combustion temperatures due to engine overload that will cause valve or piston damage. If the problem has existed since the very first day, check the weight of the boat at some local scales. Compare the prop size, drive ratio and performance with similar sized boats. Be sure to allow for addition of bottom paint and other factors relating to load. Also be sure to check the exhaust for restrictions.
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