Page 1 of 3 123 LastLast
Results 1 to 10 of 22
  1. #1

    Join Date
    Aug 2014
    Location
    Harwood, MD
    Posts
    84

    Stock 2004 185 HP not going over 50 MPH

    I get one code that comes and goes P1509 / Lake temp. out of range. Been getting this for years and it always ran fine. Usually does 64 MPH. Now I am only getting 50 MPH.

    Pulled the supercharger out and it starts to slip at 94 inch pounds, nothing wrong there.

    SS wear ring is in good shape. Engine sounds fine.

    Any thoughts on what I should check first?

    Thanks in advance for any help you can give me.

  2. #2

    Join Date
    Aug 2014
    Location
    Harwood, MD
    Posts
    84
    Just checked and I am getting 110 compression on all three cylinders.
    Nothing in the jet pump.

  3. #3
    SplishSplash's Avatar
    Join Date
    May 2006
    Location
    Belle River Ont Canada
    Posts
    1,567
    +1
    165
    What RPM's are you seeing at WOT? Normal or low?

  4. #4
    If you haven't changed plugs try that.

  5. #5

    Join Date
    Aug 2014
    Location
    Harwood, MD
    Posts
    84
    Quote Originally Posted by SplishSplash View Post
    What RPM's are you seeing at WOT? Normal or low?
    Not sure. I did not check. I really have no clue on this one. Plugs are an easy one. I will do that and see what RPM's I am getting. Thanks

  6. #6
    JT jpt7779's Avatar
    Join Date
    Jul 2008
    Location
    Pittsburg, Texas Lake Bob Sandlin
    Posts
    4,076
    +1
    784
    Max rpm is 7650.

    dash speed is notoriously wrong, due to spinning wheel right rear of ski.

    Are you reporting 50 mph with a accurate gps?

    bad gas, old spark plugs, too much oil......all have a negative effect.

  7. #7

    Join Date
    Aug 2014
    Location
    Harwood, MD
    Posts
    84
    Gas is fresh, oil level at the bottom of safe, just tried new plugs and no difference. The code is p1509. Any other thoughts??? Thanks

  8. #8

    Join Date
    Aug 2014
    Location
    Harwood, MD
    Posts
    84
    Just put both of the intake sensors in new and going out to try it.

  9. #9

    Join Date
    Aug 2014
    Location
    Harwood, MD
    Posts
    84
    Quote Originally Posted by SplishSplash View Post
    What RPM's are you seeing at WOT? Normal or low?
    6900 RPM's. That is low. Still the same after changing those two sensors. I think I am just going to rebuild the supercharger. It has 170 hours on it but it is giving me normal numbers. Could it be anything in the throttle body?


  10. #10

    Join Date
    May 2012
    Location
    California
    Posts
    1,928
    +1
    181
    Quote Originally Posted by Racerx886 View Post
    6900 RPM's. That is low. Still the same after changing those two sensors. I think I am just going to rebuild the supercharger. It has 170 hours on it but it is giving me normal numbers. Could it be anything in the throttle body?
    110 compression is also low, very low. Good numbers for a 2 stroke but not 4 stroke.

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Need help with Modding a 2004 185
    By 4skis in forum 4-Tec Performance
    Replies: 13
    Last Post: 03-15-2014, 02:35 PM
  2. Supercharger slipping? Gtx 185 wont go over 48 mph help!!
    By crzyjetskr in forum 4-Tec Performance
    Replies: 13
    Last Post: 08-25-2011, 09:34 PM
  3. 2004 Gtx Sc 185 Hp
    By Gunguy in forum 4-Tec Performance
    Replies: 5
    Last Post: 08-09-2008, 09:14 PM
  4. 2004 Gtx Sc 185 Hp
    By Gunguy in forum 4-Tec Performance
    Replies: 2
    Last Post: 07-26-2008, 09:33 PM
  5. 2004 rxp stock only 7600 rpms,63 mph
    By joe563 in forum 4-Tec Performance
    Replies: 11
    Last Post: 06-01-2007, 12:46 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
  •