Evinrude E-NATION, for those dedicated to water, power, fishing and fun
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Skipper
Posts: 15
Registered: ‎09-14-2015

About right??

finally got some decent water to open up the new South Bay 520CR with a Evinrude 90 pontoon series. Got up to about 19 mph at 5700 rpm. It was windy and we were in a weedy area. Is that reasonable? I need to buy a spare prop and am wondering if I should stay with the same prop or change it up a bit. Boat and motor plus fuel and two adults weight about 2700 lbs.

Admiral
Posts: 6,055
Registered: ‎07-14-2011

Re: About right??

 

Try it again on a nice day and average the readings for 2 back to back runs  180°  apart to negate the effects of current and/or wind.

 

Your 3-cylinder 90 HP Pontoon series outboard has a recommended rpm range of 5000 to 5500.  It is best to prop as close as you can to the redline rpm with a light load onboard so as to not lug the motor when you take on a large number of people and gear.

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"There is never just one thing wrong with a boat";
                                                 -- Travis McGee, main character in a book series by John D. McDonald


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The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. If you elect to do it yourself, be sure to use caution, common sense, and to observe all safety procedures in the vicinity of gasoline, moving engine parts, high temperature components, heavy items, and 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.