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2003 2cycle Yamaha 150 HPDI OiL Mix wrong?

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  • 2003 2cycle Yamaha 150 HPDI OiL Mix wrong?

    Hello,
    I have twin 2003 Yamaha 150's HPDI..
    Recently ran boat about 40 mile on a trip. Ran Great. I get back to the ramp, Just powering motors to load on trailer, and I notice oil smoke... turn to look to see my Port Engine blowing lots of oil smoke out the exhaust. I turn off since im on the trailer.

    About a hour later, when cleaning the boat at home, I hook up the ear muffs. Crank the engine in idle, and just shortly the smoke starts coming out again very much. Engine seems to be running fine, but, I shut off. Makes me thing the auto mix of the gas and oil is somehow putting in alot more oil than it should for some reason. Its LOTS of smoke.


    Any ideas?

    Jimmy in Texas on the Coast..
    Last edited by Jimmy Crainer; October 1st, 2017, 06:47 PM.

  • #2
    White or blue smoke?

    Comment


    • #3
      White I believe....its not dark. I guess if it make a difference, I can go out there and start to double check

      its not steam....

      Comment


      • #4
        make sure the linkage to the oil pump is hooked up.
        if it comes off it goes full open

        Comment


        • #5
          The oil pump is connected to the throttle by a link rod. The link rod is held in place by a plastic clip. The clip is known to get brittle with age and break. In which case the oil pump will default to the maximum oiling position. I would check the link rod.

          Comment


          • #6
            Originally posted by 99yam40 View Post
            make sure the linkage to the oil pump is hooked up.
            if it comes off it goes full open

            Thank you for your response...
            Hummm


            not sure what to look for.... is there a photo or schmatic somewhere I could view you might know about? Or I can go take the cowling off and take some photos where you could point it out to me..

            Only oil pump and filter I know about is on the bottom of the tank where I put my 2cyl oil in thats pumped to the motor.... Im thinking your saying to check for a linkage on the motor itself somewhere

            Comment


            • #7
              Originally posted by Jimmy Crainer View Post
              White I believe....its not dark. I guess if it make a difference, I can go out there and start to double check

              its not steam....
              Blue is normally oil, white is normally steam, not that it's always that way, just most of the time.

              How do you know it's not steam?

              Comment


              • #8
                Originally posted by ondarvr View Post

                Blue is normally oil, white is normally steam, not that it's always that way, just most of the time.

                How do you know it's not steam?

                Thanks again for the response...
                the smell and it doesnt disapate like steam does

                Comment


                • #10
                  if that is a LZ150TLRC the C would mean 2003 also

                  Comment


                  • #11
                    Sign up today
                    Originally posted by boscoe99 View Post
                    The oil pump is connected to the throttle by a link rod. The link rod is held in place by a plastic clip. The clip is known to get brittle with age and break. In which case the oil pump will default to the maximum oiling position. I would check the link rod.
                    thank you boscoe, I will....
                    ------

                    I found the plastic clip on the end of that throttle rod.. Plastic clip seems to be working properly... not broken
                    looked at all the hoses going into the pump and all looked good and connected....
                    Last edited by Jimmy Crainer; October 1st, 2017, 07:08 PM.

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