does BRP have a prop calculator some where on line? Need to really work out what I should get with our new boat. I.E., 20' South Bay with a 65 Pontoon series. Boat is about 2100 lbs empty without the motor. We mostly do leisurely cursing with 4 - 6 adults. No tubing. On a long impoundment with lots of no wake zones. Suggestions?
You will probably use either a 13-3/4 X 13 or a 14 X 11 propeller. Finding the best prop for your application is often trial and error but either of these suggestions will get you in the ballpark.
With a pontoon boat, it is best to choose a prop that will be close to the max. rpm with one or two people to avoid overloading the motor as more people come aboard and the gas tank is full.
You can view the performance reports on the Evinrude website for the 65 HP and the 75 HP engines on 19 through 22' pontoon boats and use those as a guide.
"There is never just one thing wrong with a boat";
-- Travis McGee, main character in a book series by John D. McDonald
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.