Results 1 to 6 of 6
  1. #1

    Question Question 96 GTX Rev Issues RPM and Other Issue

    Hi, I've just registered on the forum, but have read around site in the past for help.

    I have a few issues with my 1996 Seadoo GTX (787cc engine) which i will list below.

    1. My first issue is a revving problem. Some possibly related background: I recently took off the carbs and choke plates to install a primer kit (due to hard starts). I have not used the ski in 6 months. The compression in both pistons is around 148psi........I took my ski out last weekend and it was "popping, bogging, etc" and only getting to 4500rpm, and sounding very ordinary!.. after a few minutes out in the water, it suddenly was able to reach 7000rpm and was running perfectly. acceleration and top end were fantastic..... I went out again this weekend, only to find the same issue, but this time it did not fix itself, so i had to come back in after 10 mins as it would not get past 4500rpm (and bad performance)...
      I have inspected the RAVE valves, and they are clean and free.
      I think the ski might be running oil rich as it blows a fair bit of smoke when revving and even at idle.. Is there any tips on how much to let the oil pump open?

      Any guidance on this revving problem would be greatly appreciated.
    2. Another question, With the rear boot over the drive shaft, how much play is there suppose to be. I can pull the boot back and was not sure if that is fine?..

      What grease do you guys use in the grease nipple at the PTO shaft?

    Thanks in advance,

    Tony.


  2. #2
    96XPSS's Avatar
    Join Date
    Feb 2006
    Location
    Warner Robins, GA Home of the 2007 All-Star Little League World Champions!
    Posts
    4,361
    Hey Tony. Sorry nobody posted yet...and welcome to the forum!

    You have a failing rectifier. Check this thread for reference on what it looks like. This will fix your intermittent, now permanent bog problem.

    http://greenhulk.net/forums/showthread.php?t=104284

    The accordian boot can be slid away from the SS ring, but it does need to have adequate pressure to keep it from leaking.

    White lithium grease in the PTO at the front of the driveshaft .

    Robert

  3. #3
    thanks for that helpfull info robert.

    Come to think of it my ski has alot of the issues they raised, eg (my ski always says 12v low even though the battery is fully conditioned).

    If i have trouble locating the recifier, i will post here, but as i have the service manual, and a rough idea of its size and shape, i should be fine to inspect it.

    Thanks for the other info on the boot and grease required.


    Kind regards!
    Tony

  4. #4
    Quote Originally Posted by fire View Post
    Hi, I've just registered on the forum, but have read around site in the past for help.

    I have a few issues with my 1996 Seadoo GTX (787cc engine) which i will list below.

    1. My first issue is a revving problem. Some possibly related background: I recently took off the carbs and choke plates to install a primer kit (due to hard starts). I have not used the ski in 6 months. The compression in both pistons is around 148psi........I took my ski out last weekend and it was "popping, bogging, etc" and only getting to 4500rpm, and sounding very ordinary!.. after a few minutes out in the water, it suddenly was able to reach 7000rpm and was running perfectly. acceleration and top end were fantastic..... I went out again this weekend, only to find the same issue, but this time it did not fix itself, so i had to come back in after 10 mins as it would not get past 4500rpm (and bad performance)...
      I have inspected the RAVE valves, and they are clean and free.
      I think the ski might be running oil rich as it blows a fair bit of smoke when revving and even at idle.. Is there any tips on how much to let the oil pump open?

      Any guidance on this revving problem would be greatly appreciated.
    2. Another question, With the rear boot over the drive shaft, how much play is there suppose to be. I can pull the boot back and was not sure if that is fine?..

      What grease do you guys use in the grease nipple at the PTO shaft?

    Thanks in advance,

    Tony.

    thought i should add that i have now resolved this issue, and it turned out to be a failed rectifier as robert (96XPSS) clearly identified. Thank you.

    I rebuilt the rectifier, (replaced the 2x 2N6397 chips) which do the AC-->DC conversion and it solved the problem.

  5. #5
    flyin' the friendly skies airbornexp's Avatar
    Join Date
    Aug 2007
    Location
    Mahomet, Il. USA
    Posts
    6,004
    +1
    163
    Quote Originally Posted by fire View Post
    I rebuilt the rectifier, (replaced the 2x 2N6397 chips) which do the AC-->DC conversion and it solved the problem.
    ohhh come on now! you cant tease us like that with out making a "how to" if you have pics that would help but you have to do a write up for us for a stickey!

  6. #6
    96XPSS's Avatar
    Join Date
    Feb 2006
    Location
    Warner Robins, GA Home of the 2007 All-Star Little League World Champions!
    Posts
    4,361
    Glad you got it fixed Tony!

    How much were the replacement chips?

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. GTX DI Top Speed and other issues
    By Aaronm in forum 2-Stroke Performance
    Replies: 1
    Last Post: 01-31-2014, 06:51 AM
  2. First Seadoo 96 GTX Sponson issues
    By seadoo96gtx in forum 2-Stroke Performance
    Replies: 10
    Last Post: 06-13-2013, 07:23 AM
  3. pump rebuild questions? 96 gtx 800
    By hermie in forum 2-Stroke Performance
    Replies: 0
    Last Post: 07-07-2010, 01:10 PM
  4. More GTX rfi questions... will not rev past 6000 and shuts down
    By zrtman in forum 2-Stroke Performance
    Replies: 5
    Last Post: 11-19-2009, 04:53 PM
  5. Please help, 96 GSX bogs @ high RPM, and weird electrical issue
    By Mike94ZLT1 in forum 2-Stroke Performance
    Replies: 1
    Last Post: 08-14-2009, 11:49 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
  •