Results 1 to 5 of 5
  1. #1
    bainer1290's Avatar
    Join Date
    Sep 2006
    Alberta, Canada

    Riva Sponsons and Ride plate

    Well I have been doing some research. Some recommendations are to put the sponsons half way down, others say all the way down in the back and all the way up in the front? Any opinions for speed?

    Opinions say to put washers in the front of the rideplate to bring it close to flush with the bottom of the hull, what about the rear?

  2. #2
    Flying Scotsman's Avatar
    Join Date
    May 2006
    My sponsons are all the way down on both skis.
    I think stepped would be faster though.

    Your 99 with tabs you want the rear of the plate all the way up no shims.
    If you porpouse a lot you will have to add shims in the rear till it gets tight to the water.
    Because you have tabs you can run more angle and get more top end.

  3. #3
    bainer1290's Avatar
    Join Date
    Sep 2006
    Alberta, Canada
    I'm going to put in a few washers on the front and see what happens, I also adjusted the nozzle a bit as it seemed to be forcing the front down a bit when in neutral

  4. #4
    cheatin' piston popper addicted's Avatar
    Join Date
    Jul 2006
    north jersey
    basically shim the front of the plate down so that it is slightly higher than the grate. Leave the back all the way up. if it porposies, ad shims to the rear until it stops.

  5. #5
    cfgp927's Avatar
    Join Date
    Dec 2005
    Warsaw, Missouri
    Before I sold them and installed Beach House sponsons, I always ran my Riva sponsons staggered and my plate with washers under the front mounting tabs and flush on the rear.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Riva to release new intake grate (stainless) and ride plate for FZ skis.
    By Green Hulk in forum Yamaha PWC Performance (4-stroke)
    Replies: 24
    Last Post: 06-04-2010, 12:55 PM
  2. Intake Grate and ride plate - now im slower!!! HELP!!!
    By jcorallo in forum Yamaha PWC Performance (2-stroke)
    Replies: 26
    Last Post: 07-09-2007, 10:59 PM
  3. Wanted pics of modded intake and ride plate.
    By Rodneyae in forum Honda Open Discussion
    Replies: 3
    Last Post: 07-01-2007, 11:43 AM
  4. Dimensions needed for FX Intake and Ride plate holes
    By snowrunner in forum Yamaha PWC Performance (2-stroke)
    Replies: 0
    Last Post: 04-06-2007, 04:20 PM
  5. newbie questions on trailer and ride plate
    By NJRXP in forum Sea Doo Open Discussion
    Replies: 27
    Last Post: 02-05-2007, 05:24 PM

Posting Permissions

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