Can I use a Yamaha 115 2-stroke prop on a Suzuki DF140?

[Todd Deville]

I was told yes, but I would have to have the prop rehubbed, or use the exact same hardware in the exact same locations, that was used with the prop on the Yamaha 115. However, I have looked everywhere and cannot find with certainty, the correct hardware. The Suzuki is a 2006 model, but I don't know what model the Yamaha 115 is? Can someone help me out with this?
Thanks in advance.

 

[Texasmark]

You might go to a Yammie dealer and get your answers.
Spline count has to be the same.
Prop thurst is against a tapered (usually for centering purposes) flat washer fairly thick.
Then the prop.
Then may be a flat washer or some kind of prop nut retaining mechanism...some engines use a cotter pin, or a star washer that fits the nut and the prop shaft with tabs that can be bent down after the 55 ft-lbs torque is applied to the nut (guessing...that's the torque spec for my Merc. 115).
The thrust washer usuallyfits just inside the front of the prop..If the washer is too large in diameter the prop will not go on far enough and you can't get the spline visible for locking of the prop nut.

Then you need to ensure that the prop spins freely without touching the LU casting......also you need to push in on the prop when you make this test to engage the overrun sawtooth whereby the prop moves back and forth about a quarter of an inch during deceleration. It's spring loaded...push it forward and let it go and it pops back.
Last ensure that the trim tab and underside of the AV plate are clear of the blades...I like 1/4 inch in both cases. If you are running 13+ inch props and pitch less than 23" you shouldn't have a problem with either. (opinion)

 

[Chris1956]

If the prop has a pressed in hub, you should be able to look up the prop and see if it fits both engines. You may need a new thrust hub and locking washers/cotter pins.

If the prop finder says it won't fit, you can still try it. I was able to use a Mercury V6 prop on a Johnson V6 motor, by drilling out some of the splines and grinding a new thrust washer. Obviously the spline count and prop shaft size were identical.

On a modular prop, the prop finder should readily tell you if the prop is compatible, and what hub and thrust washer you will need.