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Thread: Rave valves

  1. #1
    derwin66's Avatar
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    Rave valves

    My 1997 XP had been running a bit ragged lately and I noticed oil around the raves so I thought the rave valves needed a clean and the bellows were more than likely screwed. So I bought new gaskets, bellows and o-rings to fix them. I fixed the rear rave and it all looked okay except the rave was coated with thick carbon deposits. Cleaned it up, changed the bellow anyhow and moved on to the front rave.

    I took the cap off and it looked like a mini explosion in there the top of the rave valve had snapped off, the plastic top that goes on to the bellow had melted and there was oil every where. On closer inspection of the rave valve paddle I noticed it was a little different to the rear one. There was a lip on each end of the blade whereas the other sides blades was smooth. Is this normal?

    I have to order a new valve so I thought I had better check. What would cause this type of thing. I had been running poorly for about two hours before I took it out of the water this winter


  2. #2
    svtnos's Avatar
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    u need a new valve.. both valves should be identical.. i just did mine on my 97 xp ..

  3. #3
    derwin66's Avatar
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    Are the rave valve of an RFI 800 the same as a carb 800?

    What would cause a valve to snap?

    Sorry to be a pain but one more question my rave valves appear to have a brass sleeve on the stem, what would they be ore as the new ones don't appear to have them in photos I have seen or do they?

  4. #4
    svtnos's Avatar
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    couldnt tell ya on the brass. but in my shop manual the rfi 800 and carbed 951 are the same which means the carbed 800 are different.. what would cause one to snap is really beyond me..

  5. #5
    derwin66's Avatar
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    From the inquiries I have made it may be that the hole in the housing had been enlarged by the valve rubbing against it. They then may have put the sleeve on to make the valve fit tighter in the housing. Does that make sense.

  6. #6
    If you find the answer to this, please post it up. Thanks

  7. #7
    derwin66's Avatar
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    Thats what they did, I spoke to the jet ski mechanic. There is a very thin sleeve on both raves as the hole in the housing had been enlarged a little and the stem of the valve had worn away. To fix it I bought a new housing and rave valve. Just waiting for it to arrive

  8. #8

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    yes just change it with new sets,i think that is a normal wear and tear on 800's.

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