Pontoon Motor Too Low
Motor is great too.
Pontoon motor too low. How do you know if your outboard is too low. If the motor power is too low the boat will be incapable of getting on plane as the front of the vehicle will not lift easily. The motor look like its worth more than the boat.
The water line is another 4-5 inches above that. The boat is a 21foot tritoon. The dealer says the heavier engine causes it to ride low and that does seem to be true.
I recently upgraded to a 70 HP Suzuki OB for my 1986 Grumman pontoon and immediately began to have cavitation problems. I have been reading on this forum about motors being too low in the water and I was wondering if you thought this might be the case for me as well. Boat sitting low in water.
Smoke from the exhaust could be caused by contaminated fuel a failure with the fuel injector or incorrect oil levels which can be either too high or too low. Mounting the motor lower on the boat transom can create excessive spray increase case drag reduce underwater clearance and negatively impact faster boats. Engine Sputtering or Losing Power If your boat feels like it is slowing down and you know you are not running out of gas you could be wondering what is going on.
Anti-ventilation Plate height above the bottom of the transom of boat if it is an outboard in inches use a straight edge or a board under the keel and sticking out to the anti ventilation plate for a reference and take about 4 pictures for us to see. Your engine mounting is already too low apparently because of the spray so I would not lower the mounting height rather it may have to be raised a little. You might consider extending the pontoon bottom by adding a plate kind of like a trim tab to compensate for the Panther units setback and trying to prevent the water from striking the area above the gearcase the likely cause of the spray.
Wrong motor power can cause the boat to sink. Seems that I should rise the engine one hole. I have a 2013 Sweetwater 18 foot fish model with a 40hp Merc the motor mount area fills up with water and the engine is covered in water splash at about 3500 rpm.
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