pxctoday

» Log in

User Name:

Password:

Not a member yet?
Register Now!

» Find OEM Parts

» wallpapers

Page 1 of 2 12 LastLast
Results 1 to 10 of 15
  1. #1
    PWCToday Newbie
    Join Date
    Sep 2007
    Location
    Loveland, CO
    Age
    23
    Posts
    15

    1997 Yamaha WaveRunner 760 - burning oil?

    Well, I've owned our Yamaha WaveVenture/WaveRunner 760 and Kawasaki ZXI 750 for about a month now (bought after the motor in our Sea-Doo blew up).

    Anyway, Labor Day weekend was a big day on the lake. One of my friends had a ton of her friends over, and she, my friend, my other friend, and me were all responsible for taking them out and having fun. Anyway, I ran a tank through the Yamaha both Saturday and Sunday, a total of about 7 hours and 25 gallons of gas.

    I had filled the oil tank to the top Friday night, before putting it in the water Saturday morning (I'm gussing the oil tank is about 1 gal?). Anyway, I checked the oil level after pulling it out Monday evening (didn't ride at all monday), and there was only about a tank left.

    My question is, is this thing burning oil, or do these Yamahas just have a pretty rich oil/fuel mixture?

    Sorry for the rambling, I tend to get carried away sometimes.

    Thanks, tweak.

  2. #2
    PWCToday.com Is My Home Away From Home djyox's Avatar
    Join Date
    Mar 2004
    Location
    Ft. Carson, CO
    Age
    31
    Posts
    9,261

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    its a 2 stroke... sometimes they smoke a bit to show their power... But yeah it might be running a little rich on the oil side...



    I think you should take the motor out and give it to me... Well at least the cylinders...
    -Nick


  3. #3
    PWCToday.com Is My Home Away From Home
    Join Date
    Oct 2003
    Posts
    2,664

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    Wait, what did you expect regarding the oil in the oil tank?
    Water:'03Octane,'94B1,'95B1,Land:'06 Busa,'99GSXR750,'91Vmax,'91 5.0 GT, '86 SVO. Yes, I know..... I have a problem.

  4. #4
    Top Dog TOR*P*DO's Avatar
    Join Date
    Jun 2006
    Location
    in the garage doing mods
    Age
    50
    Posts
    1,868

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    so, 25 gallons gas, 3/4 gallon of oil makes 33 to 1
    kinda rich, but not out of line
    and it sure beats going weak on oil and seizing!!!!
    if you misjudged and it is 25 gallons gas to 0.5 gallons oil, that is 50:1 which is perfect!
    Get off the couch and Ride!!!!

  5. #5
    Resident Guru PWCToday.com Is My Home Away From Home monoshock's Avatar
    Join Date
    Apr 2006
    Location
    Lake City TN. Is that banjos I hear ??
    Age
    57
    Posts
    5,811

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    Check for leaks on the oil lines.

    And then change it over to premix, where you know how much oil it's getting.
    Last edited by monoshock; 09-06-2007 at 01:31 PM.
    Cialis, it does a body wood.

    Tim


  6. #6
    PWCToday.com Is My Home Away From Home yamanube's Avatar
    Join Date
    Mar 2006
    Location
    55025
    Posts
    10,738

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    My superjet burns oil too, its normal for yamaha 2 strokes.

  7. #7
    PWCToday Newbie
    Join Date
    Sep 2007
    Location
    Loveland, CO
    Age
    23
    Posts
    15

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    Well, from reading what you guys have said, it sounds like it's nothing to worry about.

    My dad suggested removing the injectors and using pre-mix, but I don't really want to risk running too lean and seizing the engine. But, if the injector completely fouls, I guess I could learn to live with it.

  8. #8
    Top Dog TOR*P*DO's Avatar
    Join Date
    Jun 2006
    Location
    in the garage doing mods
    Age
    50
    Posts
    1,868

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    Quote Originally Posted by tweak
    My dad suggested removing the injectors smart Dad and using pre-mix, but I don't really want to risk running too lean and seizing the engine you risk that with an oil injection system failing. As long as you remember the oil (duh) in the premix, it will be there!. But, if the injector completely fouls, I guess I could learn to live with it like a top end rebuild????.

    Go Premix!!!
    Last edited by TOR*P*DO; 09-06-2007 at 09:30 PM.
    Get off the couch and Ride!!!!

  9. #9
    PWCToday Newbie
    Join Date
    Sep 2007
    Location
    Loveland, CO
    Age
    23
    Posts
    15

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    Wow, you have some good points there... Maybe I should just pull the injectors this winter and start using premix.

    If I were to do that, what kind of oil:fuel ratio would I be looking at? 40:1? 50:1?
    It may be stupid, but ya' only live once!

    1997 Yamaha WaveRunner 760
    1996 Kawasaki ZXI 750
    1989 MasterCraft Tri-Star 190

    Rippin' it up on Horseshoe Lake, Loveland, Colorado

  10. #10
    Top Dog Motoman25's Avatar
    Join Date
    Mar 2007
    Location
    Seaford, Long Island
    Age
    28
    Posts
    1,796

    Re: 1997 Yamaha WaveRunner 760 - burning oil?

    Quote Originally Posted by tweak
    Well, from reading what you guys have said, it sounds like it's nothing to worry about.

    My dad suggested removing the injectors and using pre-mix, but I don't really want to risk running too lean and seizing the engine. But, if the injector completely fouls, I guess I could learn to live with it.
    hah if that injector fouls you are gonna have a lot more than living with it....your gonna blow your motor cause its gonna run lean...

    premix it before something catastrophic happens to your motor from running on straight gas and then you will always know you are putting in 50:1 or more oil if you want to run richer than that

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)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBadvanced CMPS v4.2.0