New prop

[radioguy]

I want to get a new prop to increase WOT rpm. I have a 2009 Lund 1725 Explorer Sport with a 115 4 stroke Merc, stock prop 13.25x17 aluminum. With 2 people, full tank & approx. 100 lbs. of fishing gear I can only get 5100 RPM trimmed up at 40 mph.
I'm not unhappy with the performance, just want the best for the engine & better cruising range would be a bonus. Any suggestions would be much appreciated.

 

[jspansel]

Re: New prop

Smaller pitch prop?

 

[SparkieBoat]

Re: New prop

try a 15 pitch, should boost rpms up about 400..but I have a 19 sea pro bay boat with a 4 stroke yammy 115, I turn my 15 pitch prop over 6K, I am going to have to get a 19 or 21 pitch, yours is a 17 boat , not sure why such low RPMs..maybe motor is too low and needs to be jacked up?? or it needs injector cleaning and VST cleaning and all filters changed....