Page 1 of 2 12 LastLast
Results 1 to 10 of 14
  1. #1

    Join Date
    Jul 2015
    Posts
    3

    2004 FX140 Overheating HELP

    I have a 2004 FX140 Yamaha Waverunner. After driving for 2 hours, the temperature Guage lights up red. You can let it cool down and drive it again but it's like it's overheating. I've taken it and had it "unclogged" and the temperature sensor changed but it's still doing it. It runs perfect other than that. If it sits for a couple weeks, it will go about 2 hours before it does it again, otherwise it won't run long before the temperature Guage comes on and slows the engine down. Anyone have this problem???


  2. #2
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
    Join Date
    Nov 2005
    Posts
    6,246
    +1
    575
    Quote Originally Posted by Athrift View Post
    I have a 2004 FX140 Yamaha Waverunner. After driving for 2 hours, the temperature Guage lights up red. You can let it cool down and drive it again but it's like it's overheating. I've taken it and had it "unclogged" and the temperature sensor changed but it's still doing it. It runs perfect other than that. If it sits for a couple weeks, it will go about 2 hours before it does it again, otherwise it won't run long before the temperature Guage comes on and slows the engine down. Anyone have this problem???
    Might have a thermostat going bad. Or you have build up in the water passages.

  3. #3

    Join Date
    Jul 2015
    Posts
    3
    That's what I thought as well but that didn't fix the prob! Is there more than one thermostat?

  4. #4
    You have an intake temp sensor that might be causing this as well..

    Press the select switch

    for 8 seconds and check the error code indicated on the multifunction meter.

    Here is a summary of the codes...


    Code Symptom
    01 Normal
    13 Pickup coil malfunction
    15 Engine temperature sensor malfunction
    18 Throttle position sensor malfunction
    19 Incorrect battery voltage
    23 Intake air temperature sensor malfunction
    24 Cam position sensor malfunction
    29 Intake air pressure sensor malfunction
    47 Slant detection switch malfunction
    48 Incorrect data transmission
    54 Bypass valve motor malfunction
    55 Steering switch malfunction
    63 Intake air system malfunction



  5. +1 by:


  6. #5

    Join Date
    Jul 2015
    Posts
    3
    Thank you! Does the ski have to be running and running hot to throw this code? It won't give me anything with the power on under the garage! I am really struggling with this ski! I don't know anything about them and there is no where close that will fix skis around

  7. #6
    unplug your intake temp sensor and see if it throws a code.

    Your exhaust hs a temp sensor
    Intake has a temp sensor
    engine has a sensor

    any one of these could be bad. Located them on your ski and visually inspect the wires and plugs

  8. #7
    Yes it does need to be beeping to throw a code. I have seen a broken harness cause a ski to act stupid, but not throw a code. Simple enough right??

  9. #8

    Join Date
    Sep 2015
    Posts
    2
    +1
    1
    I have the same problem on my FX140. Have you fix your overheat problem? can you share. thanks

  10. #9
    There are 3-4 different sensors that will make the temp alarm go off. Understand it could be any one of them,. I can send the owners manual for this engine if anyone needs it. Just pm me

  11. #10

    Join Date
    May 2010
    Location
    Savannah, GA
    Posts
    193
    +1
    3
    Quote Originally Posted by fx140md View Post
    I have the same problem on my FX140. Have you fix your overheat problem? can you share. thanks
    Check you tube on the left front. My 05 fxho would do this to find out the tube was clogged. Clothes hanger fixed the clogged ran fine ever since

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 2004 FX140 Motor - 20 Hours
    By scottbaty in forum Yamaha Classifieds
    Replies: 5
    Last Post: 06-07-2010, 10:06 AM
  2. 2004 MSX 150- Help! I had to get towed back to dock!
    By angelsfann02 in forum Polaris Open Discussion
    Replies: 4
    Last Post: 08-14-2009, 07:15 PM
  3. 1992 Polaris sl650 overheating "HELP"
    By chazdo2 in forum Polaris Open Discussion
    Replies: 15
    Last Post: 10-31-2008, 10:06 PM
  4. 04 GP1300R Exhaust overheating, Help!!? NEWBIE!!
    By Joel in forum Yamaha How To & FAQs
    Replies: 11
    Last Post: 09-15-2008, 11:41 AM
  5. No Throttle on 2004 MSX 110- Help!
    By JetSki6 in forum Polaris How To & FAQs
    Replies: 2
    Last Post: 07-01-2008, 08:38 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •