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Help with proper prop selection
Comments
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@skibum. glad to hear you're getting there....Now get out on the water and enjoy!
------------------------------------------------------------------------------2010 Hurricane SS 188 OB
2010 Mercury Optimax 200HP / Mercury SS High Five 19P
2010 Trailmaster SC trailer -
Hello! Newby here. Just bought a 231 cc with a 200 yamaha 4 stroke, looking for prop guidance. It currently has a 15p and rpm’s are way high. Thinking of trying a 17 any input would be much appreciated.
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skibum, you are on the right track. The standard test is run with a "light boat", meaning one or two persons, no extra gear, less than 1/2 tank of fuel on smooth water. Under those conditions you will see the highest rpm and top speed from any propellor. Be sure to test it like that before you change it again. You may find that last 400 rpm is already there, it won't happen if conditions are less than ideal. If you can get to 6000 rpm, stay with that prop so you won't over rev your engine. If not, drop an inch of pitch.
