Results 1 to 2 of 2
  1. #1

    Just friggin great - gpr1200 issue

    After installing a Moded riva ride plate over the winter I took my 2000 gpr out for a spin. The stupid ski was porpoising so badly it was unridable. I was out for about 15 minutes or so when the ski shut down. I knew right away I had stuck a piston. I pulled seat up and all cylinders were warm to the touch. Did notice, however, that the pv servo was not cycling.

    Torn ski down today and sure enough #3 was toasted on the exhaust side. Piston missing chunk from same side. Power valve seems to have taken a hit also.

    This ski has less then 40 hours on it. Never had a single problem with it and other than adding ride plate the day before nothing has been done to ski since last season. Ski has oil injection and no lines had popped off. Then I discovered I had mixed about a half tank of sythentic oil with the traditional oil that was in tank from last season.

    Could the mixing of these oils have caused the problem? Could the porpoising have caused the pump not to load enough to keep the engine cool.

    Any feedback would be great. Do not want to rebuild the cylinder/piston until I have figured out what might have have cause the problem

    Also if anyone has a usable cylinder/piston set I just so happen to be in the market for one - let me know

    Thanks in advance


  2. #2
    forgot to add that ski has waveater clips and pv was still attached

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. GPR1200 issues
    By gprjoel in forum Yamaha PWC Performance (2-stroke)
    Replies: 31
    Last Post: 11-18-2016, 02:54 AM
  2. Sea-Doo Spark video I just made. Great forum!
    By Joey Rocket Films in forum Videos & Pictures
    Replies: 0
    Last Post: 03-28-2014, 12:46 PM
  3. Not Just Another Great Weekend at the Beach!
    By Jettribe in forum Race Events and News
    Replies: 0
    Last Post: 09-13-2013, 06:35 PM
  4. Just got an X...issue?
    By Otacon132 in forum Sea Doo Open Discussion
    Replies: 13
    Last Post: 03-07-2009, 08:04 PM
  5. Just another great Geo adventure!...
    By GeoRXT in forum Sea Doo Open Discussion
    Replies: 34
    Last Post: 04-29-2007, 09:24 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
  •