Propeller Help Needed

[jeep187]

I have a 2007 Sweetwater 1880 Tuscanny Pontoon Boat. It has a 2006 Yamaha 50hp 2 Stroke. (regular 50). I usually run 3 people on it. I have 2 Batteries, 18 gallon Fuel Tank, and about 200 lbs gear.

At full throtle i am running about 5400 - 5500 rpms with a 12 1/4 x 9 aluminum Prop.

Does anyone have any recomendations on a different prop size?

Thanks in advance.

 

[Boss Hawg]

Re: Propeller Help Needed

Why do you feel you need anouther size/pitch?

 

[jeep187]

Re: Propeller Help Needed

From about 3/4 - full throttle the motor just reves quicker but the boats stays the same speed. Plus the manual says RPm should be between 4500 - 5500 and im running at 4400 - 4500.

I was thinking if i went up a pitch or two it would drop my rpms and be faster.

 

[EGlideRider]

Re: Propeller Help Needed

Your original post said 5400 to 5500 RPM's. If that is the case, your current prop is fine.

 

[191Seanymphstriper]

Re: Propeller Help Needed

E glide come back with another report on those rpm's and please tell me the top speed?

 

[EGlideRider]

Re: Propeller Help Needed

E glide come back with another report on those rpm's and please tell me the top speed?

??? I never gave any report.......

 

[191Seanymphstriper]

Re: Propeller Help Needed

Im sry i meant jeep

 

[jeep187]

Re: Propeller Help Needed

I had the boat out yesterday and with the normal 3 people on the boat i was running 5500 rpms Wide Open and with 5 people 5250 Wide Open.


I 99 % of the time i run 3 people

 

[EGlideRider]

Re: Propeller Help Needed

You are fine. Stick with what you have. You may see a little improvement with a pontoon specific cupped prop, with the same diameter and pitch, but I doubt it.

Just enjoy it!!!

 

[jeep187]

Re: Propeller Help Needed

Thanks for the imput. Thats what i was coming to think.

 

[191Seanymphstriper]

Re: Propeller Help Needed

Here http://www.mercurymarine.com/propellers/prop-selector/#



Hope this helps. And if you need a new prop I have a 13 1/2 x 17 came off a 90hp merc mariner and will fit yamaha. And I have a 13x19 came off same motor. They are brand spanking new stainless steel props with exception i ran them both twicw to find they where the rong prop for my sized boat wieght. So they did go ona test run. But they are in better then excellent condition and its a shame! So if interested and if the site helped send me a P.M... Thanks and good luck

 

[EGlideRider]

Re: Propeller Help Needed

You definitley don't want the props from 181Sean....

 

[191Seanymphstriper]

Re: Propeller Help Needed

You definitley don't want the props from 181Sean....

A eglide Its 191 first of all. And why would he deff not want props from me? Why because you are my biggest fan following me araound and trying to bash me and talk smack because you and others are jealous and have nothing better to do? Please.... You are so funny. My and my friend are laughing and giggling right now! heheheh.... Anyway. I can text some pictures of the props they are like brand new used 1 time each. So if interested send a P.M the size that worked best for me was a 13x18P Because of the wieght and people and fishing kicker etc .... I was looking for mid range WOT which with the 18P is 41mph at 5350 rpm.... With the 17P it did 5000 rpm at 34 and the 13x19 it was 5500 at 35 or 36 mph So the 13x18 was best for me. It also allowed me to cruise at 3800 Rpm at plane which was the lower rpm of planing out of all the props. The mer prop finder website was right all along... So thats why I suggested it! Good day!

 

[EGlideRider]

Re: Propeller Help Needed

A eglide Its 191 first of all. And why would he deff not want props from me? Why because you are my biggest fan following me araound and trying to bash me and talk smack because you and others are jealous and have nothing better to do? Please.... You are so funny. My and my friend are laughing and giggling right now! heheheh.... Anyway. I can text some pictures of the props they are like brand new used 1 time each. So if interested send a P.M the size that worked best for me was a 13x18P Because of the wieght and people and fishing kicker etc .... I was looking for mid range WOT which with the 18P is 41mph at 5350 rpm.... With the 17P it did 5800 rpm at 34 and the 13x19 it was 5500 at 35 or 36 mph So the 13x18 was best for me. It also allowed me to cruise at 3800 Rpm at plane which was the lower rpm of planing out of all the props. The mer prop finder website was right all along... So thats why I suggested it! Good day!

As I reread my post, I see how you might think I was bashing you, but I assure you I was not. What I should have said is don't buy a 17" or 19" pitch from ANYONE because that is too much for your boat and motor.

 

[191Seanymphstriper]

Re: Propeller Help Needed

As I reread my post, I see how you might think I was bashing you, but I assure you I was not. What I should have said is don't buy a 17" or 19" pitch from ANYONE because that is too much for your boat and motor.

O Ok thanks. I have been getting alot of cridisism latly and for what reason? I dont know and I thought this was someone taking another shot at me.... I'm sry for jumping the gun. I do appoligise!

 

[Boss Hawg]

Re: Propeller Help Needed

As I reread my post, I see how you might think I was bashing you, but I assure you I was not. What I should have said is don't buy a 17" or 19" pitch from ANYONE because that is too much for your boat and motor.

Glad ya'll got that worked out
A 17 IS too much prop for a 50HP-
I run a 17 on my pontoon & i have a Johnson 110HP

 

[EGlideRider]

Re: Propeller Help Needed

OK. Everything is cool... I'll pay more attention to my words in the future.....

 

[191Seanymphstriper]

Re: Propeller Help Needed

Yea jeep The power recomended range is 5K to 5800 but they say You want it really between 5K and 5500 rpm... The sweet spot is 5300 or 5350 etc.... So I think you are in that sweet spot range! I think you are good to go!

 

[Cheaptoon]

Re: Propeller Help Needed

With the 50 hp you definately dont want to go higher than 11 p, I know that all to well....lol....Started with a 14 p didnt move very fast at all

 

[EricJRW]

Re: Propeller Help Needed

I'm running a 13p and I squeaked out a couple MPH more than with my 11p. I was told, by the guy in my local prop shop, I should not go higher than 13p. Since I was replacing a spun hub, I was willing to try something new.

FYI, I also called Lowe, and they said a 13 is what they would have recommended.