Results 1 to 4 of 4
  1. #1

    2004 gp1300r top speed

    Just picked this ski up with 86hrs on it. Only hits about 59-60mph. Put some sea foam in the tank and new spark plugs. Any suggestions for next steps to restore factory top speed?

  2. #2
    kmaher's Avatar
    Join Date
    Jul 2015
    Norton, Ohio
    Compression is good across the board? What numbers are you seeing there?

    After that, I'd probably be looking at impeller condition to see if that's what's causing your lack of speed.

    Does it still have the cat, or has a D-Plate been installed? There's quite a few things it may be that could be making you run a few MPH lower than expected. How about the power valves? Are they cycling properly through the RPM band?

  3. #3
    What elevation?

  4. #4
    Almost's Avatar
    Join Date
    May 2010
    Cape May, NJ
    What are your rpms? You should be turning around 7,200 rpm. If your not you have an engine issue.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 2003 gp1300r TOPS SPEED 55-56 MPH GPS ..Guage read 60
    By davdoc0011 in forum Yamaha PWC Performance (2-stroke)
    Replies: 39
    Last Post: 07-21-2015, 03:48 PM
  2. 2004 RXP Top Speed loss
    By ReactionDt in forum 4-Tec Performance
    Replies: 3
    Last Post: 06-03-2014, 01:47 PM
  3. 2004 GP1300R top end break in period and tips????
    By 04gp1300r in forum Yamaha PWC Performance (2-stroke)
    Replies: 10
    Last Post: 05-16-2013, 07:08 PM
  4. 07 gp1300r top speed (stock)
    By james k in forum Yamaha PWC Performance (2-stroke)
    Replies: 11
    Last Post: 08-12-2007, 11:19 AM
  5. Stock 2004 RXP top speed
    By driveumhard in forum 4-Tec Performance
    Replies: 14
    Last Post: 05-21-2007, 08:46 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