If the drive unit strikes an underwater hazard, check for
boat and drive unit damage. Pontoons still float if they are
punctured. Go at a slower speed. A water-logged pontoon
may change handling characteristics. If the engine vibrates
excessively after striking an underwater obstruction, it may
indicate a damaged propeller. If vibration is noticeable,
return to port slowly to prevent further drive and engine
damage from an out-of-balance condition. Watch the
temperature gauge to make sure the engine does not
overheat.
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