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  1. J

    Battery drain

    What we have here is a 1980 400xs. something is draining the battery very slow when the ignition is off. Anyone know how to trouble shoot this so I can find the problem? Thanks
  2. J

    Electrical Issues

    1980 400 I think I may have a short..... When I connect battery oil light comes on when i turn on the key of course. I press the start button and all it does is click. Break light is on and turn signals do not flash. Head light does not light. Any help be great. Thanks
  3. J

    High idle issues

    OK REplaced the floats and needle valves in the 400. It starts but will only run at high rpm. I adjusted the thottle as low as it goes but still goes into high rpms. Any ideas????
  4. J

    What Year????

    I picked up a 400 vin number 3F9-006865 just wondering what year I have. Thanks for any input
  5. J

    What Year

    Picked up this 400 from a barn. Nice project how do you tell what year and model???
  6. J

    Engine will not idle down

    Yea, 79 xs400 sat in a barn for 12 years pulled the carbs. invested in a carb rebuild but everything back together and actully ran. I'm impressed..... The only issue is motor will not idle down. Any ideas out there....
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