Results 1 to 5 of 5
  1. #1
    Member B Robinson's Avatar
    Join Date
    Aug 2010
    Location
    central Nebraska
    Posts
    28

    2000 VMAX 150 OX66 starting problems

    Hey guys,
    I've been reading some of the above posts about this issue with VMAX's motor, and I'm thinking I've got the same problem. The last couple of weeks my OX66 has been starting real hard. I have to crank it 5 or 6 times before it starts, and then when it does start, it chugs and smokes like never before. Once the motor starts running, it'll run across the lake with no problems. Seems to be a starting issue only.

    After doing the reading here and elsewhere, I do believe it's a problem like VMAX's fuel pump, and I plan on taking them off today, squeezing the bulb as described in this forum, and seeing if they leak. Is that really all I'm looking for?

    Also, what are the chances that it's a VST filter? Looking at the schematic, it doesn't look like much fun to get to, but I think I could do it. I guess I can always put the fuel pumps on and then go from there.

    It's my understanding that these little fuel pumps are low pressure, and the one in the big cannister is high pressure, correct?

    Thanks for the all the help--



    2000 Crestliner TS182/Yamaha VMAX 150 OX66

  2.  
  3. NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
    Join Date
    Jun 2004
    Location
    Asheboro, NC
    Posts
    7,174
    #2

    Re: 2000 VMAX 150 OX66 starting problems (B Robinson)

    I think you're on the right track. Do the easier stuff first like the low pressure fuel pumps. If it's 10 years old and never had the lift pumps changed/rebuilt, it's probably due.

    Replace the gaskets behind the pumps also, you have to order them seperately as they aren't part of any kit.

  4. Member William W.'s Avatar
    Join Date
    Jun 2010
    Location
    Trinity
    Posts
    76
    #3

    Re: 2000 VMAX 150 OX66 starting problems (B Robinson)

    Make sure you do as Jerry said, replace those gaskets also, just replaced my 3 fuel pumps without replacing the gaskets and my condition got worse, ordered and installed the new gaskets, and it runs fine now. Also, The VST filter can be a pain to get to, or should I say, a pain to get everything put back together, you will need to replace the gasket that goes around the reservoir if you take it apart to get into the VST, and it costs like $35 bucks, and it is a pain to get it to stay in place when trying to put the reservoir back together.

  5. Member B Robinson's Avatar
    Join Date
    Aug 2010
    Location
    central Nebraska
    Posts
    28
    #4

    Re: 2000 VMAX 150 OX66 starting problems (William W.)

    Well guys, good news....it WAS the fuel pumps! I changed them out and took the Crestliner out Monday, and it started just like the good ol days. Thanks a lot guys, I really do appreciate all the good info you've given me on here.



    2000 Crestliner TS182/Yamaha VMAX 150 OX66

  6. NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
    Join Date
    Jun 2004
    Location
    Asheboro, NC
    Posts
    7,174
    #5

    Re: 2000 VMAX 150 OX66 starting problems (B Robinson)


Similar Threads

  1. 2000 Evinrude 175 Ficht Starting Problems
    By jwnewton in forum Evinrude/Johnson Motors
    Replies: 6
    Last Post: 03-23-2012, 03:41 PM
  2. 2000 115 TLRY, no high speed operation
    By Rustyhook in forum Yamaha Motors
    Replies: 1
    Last Post: 04-07-2011, 09:14 AM
  3. 2000 175 Evinrude Ficht Starting Problems
    By wtaylor418 in forum Evinrude/Johnson Motors
    Replies: 3
    Last Post: 04-07-2009, 08:09 AM
  4. 2006 150 Vmax Carb Starting Problems
    By Southfork in forum Yamaha Motors
    Replies: 15
    Last Post: 01-24-2009, 06:00 PM
  5. starting problems 2000 200hp ficht
    By mamu1353 in forum Evinrude/Johnson Motors
    Replies: 4
    Last Post: 07-15-2008, 10:18 AM