Results 1 to 4 of 4
  1. #1
    Legend in my own mind Sirhc7897's Avatar
    Join Date
    Aug 2005
    Lake Butler, FL.

    Overheat problem?

    I'm encountering a intermittent overheat problem:

    SKi is as follows:

    2004 RXP...Riva Stage II with the following additions....
    -4" rear air intake
    -Riva ECU & injectors
    -Greenbox & J-pipe shortened (the pipe that drops into the waterbox) exiting at Rude thru hull location
    -Jims rideplate & skegs
    -Catch can
    -Grocco strainer

    It's your basic Stage II+ setup. It turns 8350rpms and runs pretty good up top.

    It will run all day long under 8000r's with no problems. As soon as I run a WOT run (8350rpms) it will make it for about 10 seconds (maybe less) and throw the high temp warning (open loop side, not closed loop side).....

    Any ideas?


  2. #2
    1 of 3 possibilities.
    1- You blocked your j-pipe holes.
    2- Your intercooler is clogged
    3- There is a small crack in either a water hose or the intercooler that is not showing unless you are at WOT.

    Unfortunatly I have experienced all 3 at one time or another.

    Good Luck

  3. #3
    Legend in my own mind Sirhc7897's Avatar
    Join Date
    Aug 2005
    Lake Butler, FL.
    -Well....I presure tested the IC back when I pulled the head and it held pressure fine.

    -I installed all new water lines when I put it all back together....

    -J-pipe holes are a possability (I'll check that)

    -The problem wasn't there initially after I re-assembled everything but showed up after running it a while without a strainer (was troubleshooting a problem with getting the strainer to seal and not leak). I thought I back flushed it very thoroughly but I'll start checking through the whole process again....

  4. #4
    If it is a waterflow issue. Which I think it is. An easy way to confirm is to plug your flush tube with a on/off hose connector. If it no longer over heats it is definitlay a water concern.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 2004 FX HO Cruiser -- A Perplexing Overheat Indicator and Lack of Power Problem
    By demetri in forum Yamaha PWC Performance (4-stroke)
    Replies: 0
    Last Post: 06-23-2014, 08:47 AM
  2. Troubleshooting the Rotax Racing Stage I kit (was problems)
    By Jarrett in forum 4-Tec Performance
    Replies: 104
    Last Post: 10-22-2005, 08:12 PM
  3. Found my Problem with My RXP after Service.
    By Water4fire in forum 4-Tec Performance
    Replies: 5
    Last Post: 06-20-2005, 03:12 PM
  4. Mysterious problem on my RXP
    By Jeff C in forum 4-Tec Performance
    Replies: 8
    Last Post: 06-13-2005, 10:08 AM
  5. 04 RXP Starting problem/question...
    By BLOWNRXP in forum Sea Doo Open Discussion
    Replies: 10
    Last Post: 06-01-2005, 10:14 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