Page 1 of 2 1 2 LastLast
Results 1 to 10 of 13
  1. #1

    Cat temp alarm going off even after installing D-plate

    Rode my GPR for the first time since rebuilding the engine and installing D-plate and sensor. Ski ran great but after about an hour the cat temp alarm went off. Why?


  2. #2

    Join Date
    Mar 2009
    Location
    CAPE MAY, NJ
    Posts
    65
    +1
    2
    did you install the resistor plug in to replace the original sensor?

  3. #3
    Yes, I did install the resistor. It was fine the first hour or so then it started going off. It was doing this before the cat was removed. When I pulled the exhaust off to remove the cat I found the cat had broken apart. I think this is what caused the center cylinder to fail. Compression was down to 70PSI in this cylinder. Over the winter I had the center cylinder and piston replaced as well as the D-plate and sensor installed.

  4. #4
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
    Join Date
    Nov 2005
    Posts
    6,194
    +1
    536
    Quote Originally Posted by yamadood View Post
    Yes, I did install the resistor. It was fine the first hour or so then it started going off. It was doing this before the cat was removed. When I pulled the exhaust off to remove the cat I found the cat had broken apart. I think this is what caused the center cylinder to fail. Compression was down to 70PSI in this cylinder. Over the winter I had the center cylinder and piston replaced as well as the D-plate and sensor installed.
    If it's a 05 or newer the resistor that riva and R&D sells does not work you have to go to radio shack and get a 2.2 k ohm resistor.

  5. #5
    I did get the resistor from Riva, but the ski is a 2000 GPR. Any other ideas?

  6. #6
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
    Join Date
    Nov 2005
    Posts
    6,194
    +1
    536
    Quote Originally Posted by yamadood View Post
    I did get the resistor from Riva, but the ski is a 2000 GPR. Any other ideas?
    ohm it out to be sure, And check the factor harness connector for corrosion.

  7. #7
    ...also, double check there's nothing wrong with the other sensor located further down the exhaust pipe chamber near the water box. That sensor detects water restriction/temperature I believe, and maybe something is expanding creating a restriction of sorts.

  8. #8
    Quote Originally Posted by yamadood View Post
    Yes, I did install the resistor. It was fine the first hour or so then it started going off. It was doing this before the cat was removed. When I pulled the exhaust off to remove the cat I found the cat had broken apart. I think this is what caused the center cylinder to fail. Compression was down to 70PSI in this cylinder. Over the winter I had the center cylinder and piston replaced as well as the D-plate and sensor installed.
    exactly which temp alarm was sounding? was the cause of the original problem found with certainty?
    was this engine then pressure tested after repair?
    a few things to check with so little info is not easy for internet repair procedure...
    whats the truth, the whole truth?

  9. #9
    It is definately the cat temp sensor alarm because the little muffler icon on the display is flashing, not the temp icon. I can only assume that the failed cat converter was the cause of the engine failure. Front and rear cyliders were at 115 PSI and the center cylinder was down to 75 PSI. When the head was pulled the piston had a small piece missing. That cylinder and piston was replaced and new rings were installed on the other 2 cylinders. Now all 3 cylinders are at 120PSI. As far as pressure testing the engine, if youre not talking about compression then I dont know what that is and doubt it was done. The oil pump was removed and ski was converted to pre-mix during the repair. Hope this info helps out.

  10. #10
    Also what ohm should the bypass sensor read?

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. how long between the oil alarm going off and your engine is toast on oil injection?
    By jetdave56 in forum Yamaha PWC Performance (2-stroke)
    Replies: 27
    Last Post: 02-20-2011, 07:27 PM
  2. Warning alarm going off?
    By mcrowe in forum 2-Stroke Performance
    Replies: 1
    Last Post: 07-31-2010, 06:09 PM
  3. All alarms going off on my Honda F12
    By bhenschel in forum Honda Performance
    Replies: 0
    Last Post: 08-24-2009, 01:40 PM
  4. Cat removed, D-Plate installed.. Warning Alarm going off!!!
    By Joel in forum Yamaha Open Discussion
    Replies: 8
    Last Post: 10-10-2008, 01:35 PM
  5. 01 GP1200R Alarm going off
    By smace in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 02-05-2008, 07:49 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
  •