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  1997 115hp Yahama performance?

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Author Topic:   1997 115hp Yahama performance?
dist6b posted 06-15-2002 12:32 PM ET (US)   Profile for dist6b   Send Email to dist6b  
I am looking at a 1997 115 hp Yahama to put on my 1968 16 7 sakonett. Any comments on performance, fuel economy or problems with the 115. Should my Morse controls and a 13x 17 prop for a 1970 Johnson 85 hp work with the Yahama?
jimh posted 06-15-2002 02:52 PM ET (US)     Profile for jimh  Send Email to jimh     
With a 34-year-old boat I would think exceeding the horsepower limit (100-HP) is not wise.

In 1968 a "100-HP" engine was the equivalent of about an 85-HP today in terms of shaft horsepower and weight.

Or, an 1997 115-HP is the equivalent of a 1968 135-HP. So you're 35% over rating on a 34-year old boat.

There is no telling on the prop. First it would have to fit the shaft and have suitable thrust washers and retaining nut.

Clark Roberts posted 06-15-2002 04:14 PM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
Jim is right on the mark! A 115 Yamaha is a potent motor and will be a handful to handle on a 16'7" hull! Clark... SCN

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