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Thread: SBT Powervalves

  1. #1
    The other Alex's Avatar
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    SBT Powervalves

    Hi all, I'm new to this site but have been a member of x-h2o since it started. I'm rebuilding my sit down ski and figured I would come here for advice. I'm rebuilding the top end on my XL800 66E motor, pulled the motor last week and tore it all apart and am in the process of ordering the rest of the parts that I need. I'm only replacing one cylinder/piston but I want to replace both powervalves because of the know issues. The ski is a 2001 and I actually have never had a problem with the powervalves since I had the ski and never got around to putting in the wave eater clips, got lucky I guess. Powervalve failure wasn't even the reason I'm rebuilding. Either way, I am replacing both powervalves. Does anyone have any experience with the SBT Powervalves? It looks like they are just stock powervalves but the pin is surrounded so that it can't slide out. Has anyone ever had any problems with them? I don't want to pay for the aftermarket R and D or Riva ones, they are expensive and I don't really care about the extra performance they offer as long as they work and aren't going to fail. It seems as though the only difference between the two are the piston clearance. Any opinions?
    Also, does anyone have a stock head laying around they'd be willing to sell?
    Thanks


  2. #2
    are u using an sbt cyl kit ??
    whats wrong with your valves? just throw in the wave eater clips if they are ok?

  3. #3

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    Cool

    what other ski do you have-would you use sbt stuff in it?
    just for the peace off mind on a part that has know to fail-is it worth it
    I'm sure someone here can scrounge up a good pair-even if it's just the latest production
    they made 3 mods to those valves

    later cd

  4. #4
    thats were I was headed SBT sleeves their cylinders instead of re nikasiling them i probably wouldn't want to mix and match

  5. #5
    The other Alex's Avatar
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    Using OEM cylinders. The ring broke on the piston which is why I am replacing the rear cylinder, it also nicked the powervalve before it went out so there is a nice little gouge in it. If the SBT powervalves are the same as the OEM powervalves, I suppose I could just order one powervalve kit and an extra lever link for the other cylinder...

    Edit: I'm only rebuilding the rear cylinder/piston, and have an original OEM cylinder with the original nikasil plating on it coming in the mail, pulled off another motor with 40 hours on it still looks brand new. I did not order SBT cylinders and would not put a cylinder that didn't match the front or did not have the nikasil plating.

  6. #6
    philip_gpr's Avatar
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    If you do decide to use SBT parts then just get the SBT powervalve arm (you don't need the whole valve)

    The SBT arm locks the pin in place and is a cleaner solution than using waveeater clips (so you don't need the waveetaer clips with the SBT arms)

  7. #7
    Quote Originally Posted by The other Alex View Post
    Using OEM cylinders. The ring broke on the piston which is why I am replacing the rear cylinder, it also nicked the powervalve before it went out so there is a nice little gouge in it. If the SBT powervalves are the same as the OEM powervalves, I suppose I could just order one powervalve kit and an extra lever link for the other cylinder...

    Edit: I'm only rebuilding the rear cylinder/piston, and have an original OEM cylinder with the original nikasil plating on it coming in the mail, pulled off another motor with 40 hours on it still looks brand new. I did not order SBT cylinders and would not put a cylinder that didn't match the front or did not have the nikasil plating.
    Smart man! I was just putting it on the table

  8. #8
    freperry's Avatar
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    No I'm confused!
    I got a SBT 1300 PV replacement motor with 'powervalves' from them in my ski does that mean I don't need the waveeatere clips?
    I was just going to order them for around $99.

    Do I need them or not?

  9. #9
    improvised tmg97gp's Avatar
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    The SBT arm holds the pin on top of the power valve captive with the closed sides of the arm compaired to the OEM arm, that are open on the sides. Wave eater clips are for the OEM power valve arms. SBT arms dont use the wave eater clips.

  10. #10
    philip_gpr's Avatar
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    Do I need them or not?

    Correct, you don't need them

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