2003 yamaha 15hp help please.

Discussion in 'Outboard Maintenance' started by kayakfisher, Mar 20, 2010.

  1. kayakfisher

    kayakfisher I Love microskiff.com!

    I have a 2003 15 hp yamaha and it starts great. when I started running down the lake today it started to die (seems to be a fule problem). I changed out to a new hose connector and buld that I had on hand. same problem would run then die. I coud start it back up with the choke 1/2 way out and run about 50% to get back to the dock. Any suggesstions?

  2. noeettica

    noeettica Well-Known Member

    Welcome sir :)

    first off drop the bowl clean the Jet stack and inlet valve ....

    If that Does not work plan on a carb Re-Build .... Dave

    Foe Strowk ?

  3. el9surf

    el9surf Well-Known Member

    I'm pretty sure I had an anti siphon something or other go bad due to ethanol. It was the cause of my motor shutting off while running. It was letting air into the fuel line. Also check primer bulb to see if it keeps its prime. Other than the carbs as mentioned are probably the place to look.
  4. mark_gardner

    mark_gardner I Love microskiff.com!

    the vent on the tanks open right ?? :-? if so then i'd pull the carb., seperate the bowl and hose it down good with some carb cleaner