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  1. #1
    smacota1's Avatar
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    Losing RPMS?????? Check Wave Eater Couplers for Wear

    I noticed I had lost about 400 RPMs in a few short weeks. Checked many things and decided to pull everything apart. Not sure this caused all of the problem since I have not put it back in the water yet, but this could a big part of it since it was on the connection between the PTO and Center cylinder, therefore it kept the Ctr and Mag power valve from opening all the way......

    Any tips on to why this might have happened would be appreciated...right now I will use the clips but go back to the stock couplers because the center shaft is not real cheap....
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  2. #2
    I got shafts if you need. On me.

  3. #3
    smacota1's Avatar
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    Hey, thanks a lot, but I had an extra laying around. Did you decide to go triple pipe yet????

    Quote Originally Posted by ctct2118 View Post
    I got shafts if you need. On me.

  4. #4
    DarkCanuck's Avatar
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    Hmmmmm...anyone else have these issues I put Wave eater couplers in about a month now with increased performance is there possibly an issue here using them for longer periods?

  5. #5
    I'm still debating, I want reliability so I am leaning towards the protech TT. Heard it's works well with the bb. I just have to get a deal on one.

  6. #6
    Good possibility a power valve is getting stuck or stiff and it wore the shaft from rubbing

  7. #7

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    Honestly, if you look at it technically, with the waveeater couplers you will see you are concentrating all the load on one small point, the radius of the pin to a small point on the shaft. The factory coupler had a bit more slop originally, but I am sure it has a much greater lifespan due to the spreading of the load over a much greater area. I am sure someone could design a much improved coupler. The hard part would be getting it into place!

  8. #8
    the PV's on gpr have no movement at all with the stock couplers, when i had the motor out i took the stock plastic couplers off and used strong pliers to pinch up the gap between the prongs on the pv shaft, then put the plastic coupler back in and used a very large zip tie to stop the coupler sliding back off. its worked great and now all 3 valves open at the exact time

  9. #9
    smacota1's Avatar
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    That what I assumed, but the valve is free and not stiff after it was torn down further.

    Quote Originally Posted by xr1800blown View Post
    Good possibility a power valve is getting stuck or stiff and it wore the shaft from rubbing

  10. #10
    Moderator RX951's Avatar
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    Good find

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