Maximizing outboard motor preformance

Reply Sun 12 Jul, 2009 09:01 pm
We have a merc 115 hp outboard motor on a 19ft Lowe Sun Cruiser Deck Boat with 13 degree merc prop. The problem we are experiencing is that the boat will not plane out properly. The motor runs at 6100 rpm's with a top speed of 28 mph.The motor is in the highest mounts possible. How do we improve the preformance of the motor and boat?
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Reply Mon 13 Jul, 2009 04:08 am
try running the motor at different angles of attack. Just play with the switch that lowers the motor while your running flat out. See if theres any diiference at a higher angle of attack.
Is your motor a long drive? We use a Merc 115 hp on a small T Bird and it planes out and runs the boat at a top spped of about 35 knots . (We cruise at maybe 25).

Does your engine fould much? Is your mix right? can you use hotter plugs?
Id start with the angle of attack , maybe that or setting the engine lower. Im n ot sure about the engine settings cause I bought my little T bird as a fixer upper project and the engine mount plates were already on.
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