Results 1 to 4 of 4
  1. #1

    GP1300R RPM Drop

    I have a 2003 GP1300R. To give you some history. I had the Riva cat removal kit installed including the EFI controller. No other mods. She had the top end rebuilt 60 hours ago. There are about 260 hours on her currently.

    Last summer I had the service engine light come on twice. Took it to the dealer and they could find nothing wrong. Now when at about 3,000-4,000 RPM's when I rapidly go to full throttle the RPM's drop 1,000-2,000 RPM's then she recovers and the RPM's shoot right back up. I can slowly accelerate with no problem.

    I have adjusted the fuel controller every which way and even tested running the boat without the controller. The controller seems to be functioning just fine.

    Any ideas?


  2. #2
    WATER WOODY's Avatar
    Join Date
    Aug 2005
    Location
    Minden, Nevada, United States
    Posts
    10,664
    +1
    11

    Re: GP1300R RPM Drop

    What mods are done?


    Sent from my iPhone using Tapatalk

  3. #3
    Quote Originally Posted by mdkuni View Post
    I have a 2003 GP1300R. To give you some history. I had the Riva cat removal kit installed including the EFI controller. No other mods. She had the top end rebuilt 60 hours ago. There are about 260 hours on her currently.
    .

  4. #4
    philip_gpr's Avatar
    Join Date
    Dec 2005
    Location
    Canada
    Posts
    2,724
    +1
    3
    maybe a probem with the power valves

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Stage 2 GP12R RPM drop at WOT
    By Himes in forum Yamaha PWC Performance (2-stroke)
    Replies: 18
    Last Post: 05-27-2010, 11:05 PM
  2. Help 07 Sc Wake Rpm Drop While Surging
    By Scotty in forum 4-Tec Performance
    Replies: 13
    Last Post: 10-10-2007, 10:20 PM
  3. How much RPM drop when upgrading props?
    By VX1 in forum 4-Tec Performance
    Replies: 7
    Last Post: 09-05-2007, 04:12 PM
  4. 13/18 Solas/SS Wear Ring = 700 rpm drop from stock 10/21 :(
    By clpsuite in forum 4-Tec Performance
    Replies: 11
    Last Post: 08-09-2007, 09:00 PM
  5. Loss Of Power/RPM Drop
    By ph2ocraft in forum Polaris Open Discussion
    Replies: 13
    Last Post: 06-26-2007, 12:44 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
  •