Johnson 15hp Speed

[Defiant]

Hey all

Can any of you guys give me some speed's your Jon boat's run with a 15HP on them .I took mine to the river yesterday and was getting 23MPH out of it that's on a 1436 Jon the prop that is on the motor is a 9 1/2x12 1/2 (stock prop) I forgot my tach so couldn't get any RPM'S .The boat weigh's 170lbs by it's self but I have added a floor and storage compartment guessing the weight to be about 400 lbs with motor and battery/gas .

Thank's

 

[jbjennings]

Re: Johnson 15hp Speed

Same speed for me (23mph) on GPS with a 12'36" johnboat. If you want to see more search out "Poll: how quick do your outboards push" by WBeaton. we've all piled on a bunch of speeds there--a pretty neat thread....
JBJ

 

[tashasdaddy]

Re: Johnson 15hp Speed

pretty close to right.. just check you rpms.

http://forums.iboats.com/showthread.php?t=237293

 

[Defiant]

Re: Johnson 15hp Speed

I thought It might be a little faster but maybe not what RPM's are you guy's getting at that speed .I was by myself when I ran it yesterday .The prop on the motor need's replaced it is a little nicked up might have to drop to a 91/4x 11 if the RPM's are to low.

 

[wbeaton]

Re: Johnson 15hp Speed

That's about top speed for that motor on a utility/jon boat.

 

[Defiant]

Re: Johnson 15hp Speed

It's a JR 1436 Crestliner I had every intention on checking my RPM's yesterday thought of everything but the Tach .I did take the 5HP Suzuki with me also got it up to 13 MPH

 

[BF]

Re: Johnson 15hp Speed

speed sounds about right, but 12 1/2" pitch sounds too high. I don't think that would be stock. What year do you have? I bet your rpms are low. I think a 9 or 10" pitch would probably be about right. I think I have a 9" on my 15 hp...

 

[Defiant]

Re: Johnson 15hp Speed

speed sounds about right, but 12 1/2" pitch sounds too high. I don't think that would be stock. What year do you have? I bet your rpms are low. I think a 9 or 10" pitch would probably be about right. I think I have a 9" on my 15 hp...

It's a 1995 15HP the 9 1/2 x 12 1/2 is the stock prop for that year (Listed in Manual) I called around and found a 9 1/4 x 11 in case the RPM'S are to low gotta wait till I can get a tach on it though. He also has the Stock prop.

 

[tashasdaddy]

Re: Johnson 15hp Speed

http://shop.evinrude.com/ shows 2 props for that motor. 10x9 high thrust and 9x11 as stock props.

 

[Defiant]

Re: Johnson 15hp Speed

http://shop.evinrude.com/ shows 2 props for that motor. 10x9 high thrust and 9x11 as stock props.

Johnson 1995 15HP J15EEOD


PROPELLER, 9.5 x 10, 9.9 models. Refer to OMC SysteMatched Parts & Accessories Catalog for Propeller Chart


PROPELLER, 10 x 7, 9.9 Sail. Refer to OMC SysteMatched Parts & Accessories Catalog for Propeller Chart.



PROPELLER, 9.5 x 12.5, 15 models. Refer to OMC SysteMatched Parts & Accessories Catalog for Propeller Chart.


http://shop2.evinrude.com/ext/index.aspx?s1=f470b3f529bd90264724b6be70584a05

 

[skinny water1]

Re: Johnson 15hp Speed

I have a 12ft v-hull jon boat with a 60hp evinrude e-tec it runs 70+ mph its out of control likes to fly