Results 1 to 7 of 7
  1. #1

    Join Date
    Sep 2009
    Location
    south jersey
    Posts
    30

    rx or kawasaki stxr

    i have an ultra 150 now and have had to rip the motor totally down and rebuild it so i feel like i know how to work on that motor ( same one in stxr). but have seen my buddies have good luck with the 951. how are they to work on? they only want 2500 for the 00 rx, and i like the ski just want to know how they are to work on. seems like the parts are a lot cheaper to buy for the seadoo. oh buy the way its carburated. what is a rav valve?


  2. #2

    Join Date
    Sep 2009
    Location
    n.j.
    Posts
    457
    that's a hard choice, but for 2500 the rx is a good price. a rave valve is an exhaust valve that opens when needed to give the power band an oomf.it has the black cap with the blue or red center on the side of the jugs. I like the stxr but I can't find one for less than 4500. the stxr parts costs more because it has one more cylinder than the rx. parts for both should be readily available. if it's a few hundred dollar difference, get the better condition one.
    R.A.V.E.=Rotax Adjustable Variable Exhaust

  3. #3

    Join Date
    Sep 2009
    Location
    south jersey
    Posts
    30
    what is a rotary motor is that the only difference the valves for the ski. do the valves go bad? does it work on some kind of timing?

  4. #4

    Join Date
    Sep 2009
    Location
    south jersey
    Posts
    30
    you said adjusatable variable timing is that something i would have to adjust?

  5. #5

    Join Date
    Sep 2009
    Location
    n.j.
    Posts
    457
    the 951 is not a rotary motor. rotary motors have a roundish disc that rotates off the crankshaft via another gear which spins the rotary disc into exposing the intake ports on the crankcase based on timing, thus allowing air into the cases.
    the 951 has reed induction like your ultra.
    the R.A.V.E. valves work off pressure and just remove, clean and put back in. do not adjust the spring tension unless needed, which probably doesn't. they adjust by turning the blue or red centers of the caps.
    the 580,657(x), 718, and 785 were rotary motors

  6. #6

    Join Date
    Sep 2009
    Location
    n.j.
    Posts
    457
    where in south jersey are you and where do you ride?

  7. #7

    Join Date
    Sep 2009
    Location
    south jersey
    Posts
    30
    by smithville, usually ride in brigatine

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 2003 Kawasaki STXR Fix, Sell, or Part Out
    By JohnCiccarelli in forum Kawasaki PWC Performance (2-stroke)
    Replies: 16
    Last Post: 05-24-2010, 10:45 PM
  2. ?Keep my rebuilt 01' RX or sell and buy 05'RXP?
    By JulianC in forum Sea Doo Open Discussion
    Replies: 10
    Last Post: 03-25-2008, 09:23 PM
  3. GTI SE 155 or Kawasaki Ultra LX?
    By fastexas in forum Sea Doo Open Discussion
    Replies: 14
    Last Post: 01-16-2008, 07:00 PM
  4. Yamaha fx highoutput or Kawasaki stx 15f??? Help me decide???
    By Sosa62 in forum Yamaha Open Discussion
    Replies: 5
    Last Post: 05-19-2007, 01:18 PM
  5. Yamaha fx highoutput or Kawasaki stx 15f???? Help me decide..
    By Sosa62 in forum Kawasaki Open Discussion
    Replies: 4
    Last Post: 05-19-2007, 03:42 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •