2003 Ultra trouble shoot question
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Stellar HDF Member
Joined: Nov 2008
Posts: 2,432
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From: FL
2003 Ultra trouble shoot question
Looking for help for a friend of mine experiencing bike problems up in the mountains on vacation.
He has a 2003 Ultra with rough running issues. He said it feels like an exhaust leak or vacuum problem but he doesn't hear anything different. He just had it serviced at a dealer before leaving on vacation for its 45,000 scheduled service. He's already pulled the plugs and everything looks normal. Any ideas what could be wrong. He says it's not bad gas, he's already burned through the tank of gas when the issue started and partly into another from a different gas station.
Appreciate any advice to pass along. Thanks in advance.
He has a 2003 Ultra with rough running issues. He said it feels like an exhaust leak or vacuum problem but he doesn't hear anything different. He just had it serviced at a dealer before leaving on vacation for its 45,000 scheduled service. He's already pulled the plugs and everything looks normal. Any ideas what could be wrong. He says it's not bad gas, he's already burned through the tank of gas when the issue started and partly into another from a different gas station.
Appreciate any advice to pass along. Thanks in advance.
Cruiser
Joined: Jul 2011
Posts: 169
Likes: 0
From: Colorado
I would start with the intake manifold, you can have cracked o ring gaskets and never hear a leak. Spray some wd 40 around the intake manifold while bike is running and see if you have an rpm change, if so you are a step closer to finding the problem. Hope you can finish your mountain trip.
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Stellar HDF Member
Joined: Nov 2008
Posts: 2,432
Likes: 290
From: FL
I would start with the intake manifold, you can have cracked o ring gaskets and never hear a leak. Spray some wd 40 around the intake manifold while bike is running and see if you have an rpm change, if so you are a step closer to finding the problem. Hope you can finish your mountain trip.
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Stellar HDF Member
Joined: Nov 2008
Posts: 2,432
Likes: 290
From: FL
Ok ... In the interest of putting this issue to rest, problem solved by installing the correct spark plugs. Just another reason to do your own maintenance. Thanks for your input pdzani.
Road Captain
Joined: Sep 2012
Posts: 662
Likes: 1
From: Kelowna, BC, Canada
Thanks for coming back on here and telling us the solution. It will save someone the headache one day
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Stellar HDF Member
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Absolutely, that's what this forum is all about. It's saved me several headaches over the years!
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