Engine stops but will start right back

Discussion in 'Engine, Fuel and Exhaust' started by HDShovelHead74, May 22, 2010.

  1. HDShovelHead74

    HDShovelHead74 Member

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    I have a 74 Shovel with Elec Ign (Fireball HI-4) and elec start
    Had it for about 3 yrs no problems.
    Made no adjustments.
    Recently the engine just stops. Pull over cranks back up and on my way.
    Replace plugs checked wires all look ok.
    Any ideas?
     
  2. Jonas

    Jonas Junior Member

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    Do you have two gas caps ? When you stopped did you remove one and look in the tank? Vent could be bad on the cap.
     
  3. HDShovelHead74

    HDShovelHead74 Member

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    I have 2 caps but they are not vented
     
  4. glider

    glider Veteran Member

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    Loosen the right one next time it happens. One should be vented or the fuel will not flow.
     
  5. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    When the engine just starts to sputter, can you reach down quick enough to go to reserve? Maybe obstruction in the fuel tank or upper pickup tube, just to be sure it is fueling?
     
  6. HDShovelHead74

    HDShovelHead74 Member

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    No sputtering just stops. Last time I was thrttle off and did not even know it stopped till I went to throttle.

    Also I have had 2 caps from the get go and they are not interchangable
    rt only fits rt and lft only lft
     
  7. Jonas

    Jonas Junior Member

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    One of them is vented. Does not look like it but it is. Right side as your sitting on the bike, take it off and shake it, you should hear something. If the vent is not working it will cause the bike to quit running. But would sputter first. Does not sound like your problem

    I modified mine so I did not have to worry if it was working or not.
     
  8. HDShovelHead74

    HDShovelHead74 Member

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    How did you mod yours?
     
  9. Campsportster

    Campsportster Member

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    A friend I work with bought a bike and the previous owner had sealed the tank(79 xlh sportster 1000 chopper it looked sweet) he said he was having problems with it sputtering and then just shutting off then he would open the tank to see if there was gas in it and it would be fine.

    He figured out that the previous owner sealed the tank so much that it wasn't getting any air. ergo bike running fine after removing gas cap

    just adding input to previous posts
     
  10. Jonas

    Jonas Junior Member

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    Check out the picture. You can see the small hole I drilled. Drilled one on the side not shown in the picture two. Only on the right side tanks cap. The problem drove me nuts for a while.
     

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