Yamaha 15 HP 2 stroke

Discussion in 'Outboard Maintenance' started by ratred, Mar 2, 2009.

  1. ratred

    ratred Well-Known Member

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    I have a 1996 15 HP Yam. Starts up easy, idiling is rough. New plugs helped a little. It does not come up to full power when running. Noticed raw fuel emulsion in prop exhaust when flushing. Any ideas would be appreciated.
     
  2. Brett

    Brett > PRO STAFF <

    Full tuneup and a carb rebuild is what I'd do. Sounds like you're running rich.
    13 year old motor, when was the last time it had a complete service/lube top to bottom?
     

  3. ratred

    ratred Well-Known Member

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    Just got the engine, doesn't look like it's ever had anything done to it. I was just trouble shooting it and the #2 bottom cylinder is not firing. Getting plenty of fire through the plug. Pull the #1 plug wire while running and it dies. Pull #2 pluge wire and it keeps running. It's going ot the shop.
     
  4. tailchaser

    tailchaser Well-Known Member

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    CDI pack probably..