Results 1 to 2 of 2
  1. #1
    Member
    Join Date
    May 2007
    Location
    decaturville
    Posts
    377

    2004 Yammie 225 problems @ wot

    Friend of mine has this on a Stratos and when he gets to WOT it will fall from around 5500 rpms down to 4500 or lower without warning. He can get it back to wot by slowly increasing the throttle a little at a time. Low pressure pumps are not leaking and primer bulb is good. He recently had it in the shop and they claim to have cleaned the VST filter along with the OX2 sensor. ALso put a new starting battery on none of which resolved the issue. Any ideas ? thks

  2. Member Yatesville Junkie's Avatar
    Join Date
    Mar 2010
    Location
    Louisa KY / Elkins WV
    Posts
    604
    #2

    Re: 2004 Yammie 225 problems @ wot (phillic)

    O2 sensor, this happened to me not to long ago and I tried to clean it but it didn't work, find a new sensor and you should be good to go.
    2020 Ranger Z520L 250 Pro XS 4

Similar Threads

  1. 2004 285 ProXl 2004 150hp Evinrude DI Setup?
    By ryan71184 in forum Stratos/Javelin Boats
    Replies: 4
    Last Post: 08-04-2011, 08:26 AM
  2. 2004 225 HPDI low end and top end problems?
    By EricN in forum Yamaha Motors
    Replies: 15
    Last Post: 05-10-2009, 08:15 PM
  3. 2004-07 Envinrude problems?
    By CanadianMac in forum Evinrude/Johnson Motors
    Replies: 2
    Last Post: 03-16-2009, 05:35 AM
  4. 2004 yamaha 150 vmax tachometer problems
    By cnorris in forum Yamaha Motors
    Replies: 4
    Last Post: 12-16-2008, 04:59 PM
  5. trim problems in a 2004 225 HO
    By quest290 in forum Evinrude/Johnson Motors
    Replies: 6
    Last Post: 12-20-2005, 12:35 PM