Results 1 to 3 of 3
  1. #1

    Question Top Speed 40mph...? Please Help

    I have a 2006 GTX(155 h.p.) (stock)that is maintained very well. Last season the speedometer read in the mid 50's, however, this past weekend I got a top speed of 40 mph. I didnt change thesprk plugs or oil yet, but is there any other things that need to be replaced or maintained. Also, btw I was considering the r&d kit made for the 155's.
    Does anyone use that or have any advice to make the ski perform better? Also I figured out that it cant be that the speedometer was malfunctioning bc I had another ski go side by side with mine.
    Anything info would help a lot...Thanks for reading

  2. #2
    i would go ahead and just change the plugs. does the ski run fine or does it feel like its running rough? also you should change the oil once a year

  3. #3
    GTI SE 155
    Join Date
    Sep 2007
    I thought they didn't make the 155 in '06......

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Gp1200r top speed only 58 help pics of intake maybe ???
    By Jvislawncare in forum Yamaha PWC Performance (2-stroke)
    Replies: 16
    Last Post: 05-15-2014, 05:32 AM
  2. Low RMPS, Top speed 40mph, Funny Sound PLEASE HELP!
    By ygtk09 in forum 4-Tec Performance
    Replies: 15
    Last Post: 06-19-2012, 09:02 PM
  3. GP1300 top speed 58mph! Please help!!!
    By etk2008 in forum Yamaha PWC Performance (2-stroke)
    Replies: 0
    Last Post: 07-17-2011, 10:29 PM
  4. slow top speed please help
    By slydogge in forum Yamaha PWC Performance (2-stroke)
    Replies: 11
    Last Post: 08-17-2010, 02:29 PM
  5. 2007 rxt not getting top speed please help
    By jamesrini79 in forum 4-Tec Performance
    Replies: 26
    Last Post: 08-10-2007, 08:48 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