99 Skeeter ZX 185 / 99 Yamaha 150 V Max Prop Diameter help

johninmo

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Apr 1, 2009
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Hello I recently got into some rocks and messed up my prop after taking it off I have realized I have a 13 1/2 x 23-M. People have been telling me I should have a 14 1/2" on it. Why would someone have put a 13 1/2 " on it? Should I be looking for a 14 1/2" or just have mine reworked ? I was getting consistently 60 mph GPS sometimes more with two guys and tournament loaded.
Thanks
 

jestor68

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Jun 12, 2012
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Re: 99 Skeeter ZX 185 / 99 Yamaha 150 V Max Prop Diameter help

The Merc Lazer II and Trophy Plus in 23 pitch are 13.75" diameter.

So I guess it's not unheard of. Props of 14-14.5 dia are usually recommended for larger motors(200+), because it takes more power to turn them up to speed due to more blade area.

Where the suggestion comes from is likely based on your 150's 2.0 gear ratio; compared to the 175's 1.86 gear ratio.

Just be aware that adding an inch of diameter is big; like adding 1-3 inches of pitch(depending on who you listen to).
 
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MikDee

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Jun 6, 2007
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Re: 99 Skeeter ZX 185 / 99 Yamaha 150 V Max Prop Diameter help

Larger Diam. props are for cruisers, & heavier boats, not fairly light weight speed designed hulls. Unless, you're carrying an extra load? I had to put a 14 1/2", or 15"X 17", on my 24ft SeaRay cuddy, or when cruising, it would fall off plane at times, especially in turns. Or, if you're experiencing any prop "blow out"? Otherwise you're fine with what's offered in your size pitch.
 

johninmo

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Apr 1, 2009
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Re: 99 Skeeter ZX 185 / 99 Yamaha 150 V Max Prop Diameter help

I ran a Tempest Plus 14 1/2" 23p my buddy loaned me and it actually only ran 53gps compared to 60 with my 13 1/2 " I am thinking I may just have my old prop reworked. Why would my smaller diameter prop run faster than the bigger one ? Do I need to adjust my prop to pad since I would be changing diameter ?
 
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jestor68

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Re: 99 Skeeter ZX 185 / 99 Yamaha 150 V Max Prop Diameter help

What did I tell you about adding an inch of diameter?

What does that equal in terms of pitch?

Your 150 doesn't have enough power to turn that one up to speed(rpm).
 

johninmo

Petty Officer 3rd Class
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Apr 1, 2009
Messages
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Re: 99 Skeeter ZX 185 / 99 Yamaha 150 V Max Prop Diameter help

RPMs are 5800 which is roughly the same as I ran with the other prop and I have yet to find anyone using a 13 1/2 " prop on a 150 which is confusing to me
 
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