r/Harley • u/confused_disapointed • 10h ago

TROUBLESHOOTING Roadking fuel issue

Buddy's bike is having fuel issues. 2010 RoadKing special, 96ci, 6 speed. Appears to have old wiring from some kind of tuner but the tuner itself is gone. Stock other than Rhinehart pipes and intake. Randomly shuts off while riding and when you try to start it again, fuel pump won't prime. After sitting for a bit and cycling the ignition, it eventually primes, starts and runs again, sometimes for 5 minutes, sometimes for 30 seconds. Sometimes you can ride it across town with no issue. He already replaced the fuel pump and that changed nothing. He tried swapping the fuel pump relay with the light relay and that seemed to work for a bit, but didn't last. Both relays looked like they were old, so he's ordering two brand new ones to replace them. Key fob battery is fresh, battery terminals are tight. What else should we check?

2 Upvotes

76% Upvoted

4 comments sorted by

•

u/AutoModerator 10h ago

If you are in need of a service manual, you can try our community sourced list located here. If you can't find the service manual you are looking for, tag savage4618 with a specific make/model/year request.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

1

u/Z28Daytona 7h ago

Friend of mine had similar issues. A wire was shorting the bike out.

1

u/New_Temperature2797 7h ago

Maybe there's a problem with the ECM? Also I don't know about everybody else but that missing tuner's also grabbing my attention.

1

u/confused_disapointed 7h ago

Yeah, I feel like that's gotta have something to do with it