07 ultra Classic low rpm misfire

Discussion in 'Touring Models' started by bigjay, Sep 28, 2009.

  1. bigjay

    bigjay New Member

    My 07 Ultra Classic suddenly started misfiring at low rpm. It was running fine and I pulled into a rest area for 30 minutes. I came out and on excelerating to get back on the highway it stumbled as though running out of gas. I down shifted and it took off again. I found that if I kept the rpm above 3000 it ran flawlessly. It only misses fires at low rpm and at idle it will run on one cylinder. Got any ideas? Or has anyone else had this problem. PS I have changed spark plugs and replaced the fuel pump line in the tank as suggested, no help.
  2. glider

    glider Veteran Member

    Check the resistance in the plug wires and also look at the injectors to see if the plugs are on properly.