starting problems!!

Discussion in 'Motorbike Technical Discussion' started by Andras Nolsøe, Nov 17, 2005.

  1. hey there
    I have a problem starting my bike, the weather is pretty cold now it gets
    bellow freezing point.
    I have also noticed that the engine runs roughly during medium speed at
    I have tryed som carb liquid that i put in the gas tank but it doesn't seem
    to have an effect.
    What could be wrong?
    Andras Nolsøe, Nov 17, 2005
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  2. Andras Nolsøe

    Pale Fire Guest

    What kind of bike?
    Pale Fire, Nov 17, 2005
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  3. Its an 2000 yamaha DT175(N)
    2stroke, Air cooled, has an seperate oil supply (pump).

    "Pale Fire" <> skrev i en meddelelse
    What kind of bike?
    Andras Nolsøe, Nov 17, 2005
  4. Andras Nolsøe

    Pale Fire Guest

    You might have water in your gasoline so alcohol that removes water
    will help keep the carburetor from icing up when the water freezes
    inside the float bowl.

    Also, your idle jets and idle mixture passages might be getting plugged
    up, so about an ounce or two of a fuel system cleaner that contains
    xylene and acetone will clean out the jets and passages. Fuel system
    cleaners containing petroluem distillate
    are for fuel injection systems, they lubricate the fuel injectors.

    Your Yamaha doesn't have a choke, it has a starting enrichener. That
    sort of device doesn't work as well as a real choke plate. You can't
    turn the throttle while the "choke" is on, the engine won't suck gas
    out of the float bowl.

    Try turning the idle speed adjuster all the way out so the throttle
    closes completely to get the most vacuum while you have the "choke"
    knob all the way out (or the "choke" lever full on). Then the engine
    will suck gasoline out of the float bowl through the starter jet.

    You can re-adjust the idle speed screw after the engine warms up.

    A 2-stroke engine has a very long intake tract. When it's very cold,
    the gasoline might tend to condense out in the cold crankcase instead
    of remaining vaporized. So you might try using ether from a spray can
    to start the engine when it's very cold.

    Or keep the motorbike inside where it's warm.
    Pale Fire, Nov 17, 2005
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