Results 1 to 2 of 2
  1. #1

    Idle Trouble with MR-1

    I have a 2004 AR230, same engine as the fx-140. To give a little history. Engine does not idle. it will start if idle is given and run ok and max out at 9000 while other (good engine) engine will run 10200. I swapped a lot of stuff between engines to see is problem was ignition coil, TPS, fuel pumps etc... nothing solved it. Did compression test and engine read 145-150 in every cylinder. other engine reads 190 acress the board.

    I have a YDS and engine reads no problems. BTDC is a little high compared to other engine. The bad engine is at around 11 with 2 degree carb opening. good engine is like 4 with 1.5 degree carb opening.

    Yamaha dealer tells me that the injectors are probably gummed. I ran injector cleaner through it but they said that wouldnt fix the problem.

    They also said that my compression isnt low and they have seen engines run with this compression..

    I told them i think the valves are off or arent closing causing the low compression across the board. They said that usually the engine never needs valve adjustment. My engines only have 85 hrs on them..

    any ideas on what it could be. Im so frustrated and the dealers keep telling me stupid stuff like change the plugs or clean air filter. (which I have already done) I feel like they dont want to do the work because its gonna be a hard job.

    Any ideas on what I can be causing this and how i should fix it???

  2. #2
    Addicted Member 5001craig's Avatar
    Join Date
    Jul 2007
    Northeast Indiana
    Good luck and welcome to the forum.

    Wish I could help but I'm sure there are people here that can. If you have anything new that you find, post it.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Help trouble with new 2007 150 speedster 155hp
    By fugazi in forum Sea Doo Sport Boats
    Replies: 5
    Last Post: 05-07-2018, 08:09 AM
  2. HAving troubles with 4tec
    By moto17 in forum 4-Tec Performance
    Replies: 10
    Last Post: 10-08-2007, 12:14 PM
  3. Trouble with fuel injection
    By txwild40 in forum Polaris PWC Performance
    Replies: 0
    Last Post: 08-28-2007, 03:23 PM
  4. Trouble with Riva SC plactic hoses
    By Alex13 in forum 4-Tec Performance
    Replies: 2
    Last Post: 07-28-2006, 08:32 PM
  5. For those having trouble with the stock class ECU
    By Green Hulk in forum 4-Tec Performance
    Replies: 1
    Last Post: 04-17-2006, 12:21 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