9.9 Yamaha

Discussion in 'Bubba's Outboards' started by coke1, Jun 19, 2007.

  1. coke1

    coke1 New Member

    Messages:
    13
    State:
    oklahoma
    Please help, my motor bogs down, but if you remove the fuel supply it runs good until all the gas is gone. Carb was rebuild by local Yamaha dealer, but now they want to sell me a new coil pac for 127.00
     
  2. Mr.T

    Mr.T New Member

    Messages:
    2,553
    State:
    MO
    Give the primer bulb a squeeze next time it bogs down and see if that helps. Could be an obstruction in the fuel supply, a weak fuel pump or something else. I'm no expert, but it doesn't sound like a new spark plug coil pack is related to your issue..
     

  3. Bubbakat

    Bubbakat New Member

    Messages:
    4,532
    State:
    McMinnvill
    If It is running without one cylinder it will affect it in the same way so what you need is to do a spark test.