Suddenly when riding the motorcycle I discovered a massive fuel leak from the gas cap on to the front cylinder head. I immediately pulled over and inspected the gas cap for tightness. I found that the gasoline cap was sufficiently tight and the sealing surface of the o-ring was okay as well. The gasoline appears to be leaking from the center of the cap where it pops out and lets you turn it. I was not able to tighten the cap in a way that would stop fuel from flowing out of it. I can’t see any seals inside the cap and don’t want to inspect and damage it if this would be beneficial for Harley Davidson to inspect. I am able to duplicate the failure every time I tilt the motorcycle side to side.
The worst 2018 Harley-Davidson FXFB problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Fuel system1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Fuel system1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2018 Harley-Davidson FXFB 43
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- TIRE TREAD DEPTH GUIDE-UPDATE. PURPOSE: [Revision C. Updated: Tire Tread Depth Guide
- Battery warranty guidelines
- BATTERY WARRANTY GUIDELINES. PURPOSE: [Revision F. Added: Added video link for the DCA-8000 Battery Tester
- TIRE TREAD DEPTH GUIDE-UPDATE. PURPOSE: [Revision B. Updated: Tire Tread Depth Guide
- Battery warranty guidelines
- Digital technician II - updates and release notes
- Cosmetic cylinder staining (all milwaukee-eight models)
- Digital technician II - updates and release notes
- Digital technician II - updates and release notes
- Digital technician II - updates and release notes
What 2018 Harley-Davidson FXFB owners say
Most recent owner complaints, unedited.
Compare the 2018 Harley-Davidson FXFB
Other model years
2018
Questions about the 2018 Harley-Davidson FXFB
Is the 2018 Harley-Davidson FXFB reliable?
Owners have filed 1 complaint about the 2018 Harley-Davidson FXFB, close to a typical FXFB model year.
What is the most common problem with the 2018 Harley-Davidson FXFB?
Fuel and propulsion system, with 1 complaint.
How many recalls does the 2018 Harley-Davidson FXFB have?
No recalls on record.
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