??? About Stainless prop for 115hp Yamaha

I have just purchased a new 1750 Fish Hawk with a 115 hp 4 stroke Yamaha. Looking to put a stainless steel prop on back. Any one with suggestions as to brand, pitch & diameter.
Thanks!!

My Fishawk came with a 17 pitch aluminum. Why, I have no idea. All the tests run by Yammie on that boat say to run the 19 pitch. I ended up picking up a used stainless in the 19 pitch here at IDA. It’s the Michigan Wheel Rapture. I got 4 – 6 mph by myself but the biggest area of improvement was when I had a load in the boat, ie. Buckshot, Gary, Crossin’Eyes.

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ie. Buckshot, Gary, Crossin’Eyes.

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Yep !! Thats a load !!

Thanks for the feedback. Do you by chance know what diameter that was or are they all about the same for that size motor?

Best prop I found is Yamaha 19 Pro Series, I compared them to 6 other SS props. Best p/u in speed hole shot and bite.

14.25 if I remember correctly. You can get that info from Yammie for sure though.

Thanks,

I’ll give them a call.

You have probably already checked out http://www.yamaha-motor.com but here are a couple of performance bulletin’s that show some data about your motor.

Here is a G3 boat with a comparable weight:

G3 HP 170

Here is a deep hull but heavier boat:
Glasstron GX 180

Looks like you should get 50 mph and 5 mpg with a 21″ prop. But like an earlier message, it will depend on your load and how fast you want to get on plane. My Dad has a 1650 with a 80 HP Yamaha 4 stroke. He started with a 15″ pitch and was on plane in less than 3 seconds. He has since changed to a 19″ prop and gets on plane relatively fast but gets around 40 mph on top end.