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ContinuousWave: Whaler Performance
Prop size for 115 Yamaha on 16'7
|Author||Topic: Prop size for 115 Yamaha on 16'7|
posted 12-22-2002 01:59 AM ET (US)
Last week I mounted a yamaha 115 on my 16'7 whaler. Instead of tinkering with different props I was wondering if anyone knows the most suitable prop for this engine and hull. I had custom bracket made for the transom, and the dealership recommend me to cut underneath the well, pull out foam, thru bolt bottom bolts, and fiberglass over the foam so no water will intrude, in which I did. The saft is 20 inches. Hope someone can help me with the right prop.
posted 12-22-2002 02:08 AM ET (US)
Sorry,spelling error Line 6
posted 12-22-2002 03:16 PM ET (US)
Look at the threads from a few weeks back on my prop selection for a Merc 115 on a Montauk. I tested 6 different SS props before ending up with a 21" Rapture by Michigan Wheel. I do not no what the gear ratio is on your 115 so you may want to find out what it is first. Yamaha makes good props so you may want to look at one of theirs.
posted 12-23-2002 07:56 PM ET (US)
posted 12-24-2002 02:30 AM ET (US)
I am in the process of repowering my '88 Montauk too, but I thought the max rated horsepower is 100. How have you both put 115's on it? Is that legal? I would like to do that to if possible.
posted 12-26-2002 09:44 AM ET (US)
Tons of topics on overpowering a montauk. Do a search. We have discussed the legalities and insurability, etc many many times.
posted 01-05-2003 11:40 PM ET (US)
I have a 96 17' OR w/ a 115 yammy. I just went from a 17" to a 19" SS and saw a world of diffrence[29 mph to 38mph] . Hope that helps. Stan
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