AI Damage2007 Harley-Davidson Flstn: common problems
Owners of the 2007 Harley-Davidson Flstn filed 6 complaints with NHTSA, most often about engine and cooling and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 6
What fails most often
- 1 Engine and cooling 67% of all complaints
- 2 Powertrain 33% of all complaints
- 3 Electrical system 17% of all complaints
- 4 Equipment 17% of all complaints
- 5 Fuel system 17% of all complaints
- Engine and cooling: 4 complaints (67% of all).
- Powertrain: 2 complaints (33% of all).
- Electrical system: 1 complaints (17% of all).
- Equipment: 1 complaints (17% of all).
- Fuel system: 1 complaints (17% of all).
Symptoms owners describe
How many of the 6 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 4 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Electrical system | 1 | 0 | 0 |
| Equipment | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
After coming to a stop at a stop sign, my wife went to adjust the side mirror and the engine shut off. Initial attempt to restart the bike had no response, but after repeated attempts the bike started.
Loss of engine power due to failure of fuel pressure regulator housing. This component is shared with other harley davidson models with fuel injection.
2007 harley davidson flstn, 96b motor, factory new, 277 miles on odometer, no aftermarket parts: excessive vibration of motor, excessive motor heat, harsh / loud, metal to metal transmission gear engagement, and secondary transmission gear metal to metal clunk while rolling out clutch in 1st & 2nd gears.
- while riding 2007 harley davidson motorcycle, bike is shutting down while in gear. - motorcycle loses the ability to shift without the bike running. This happening while in various riding situations. - have taken to dealership where bought. They were not able to diagnose the problem and or fix it. -
Hot running engine under normal operating conditions. Hard, metal to metal hit on engagement of starter and transmission on start-ups. Hard, metal to metal hit on initial shifting to first gear from neutral and on start-up.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 13,278 of 36,656 model years in the NHTSA data (top 36% most complained about).
On average one model year of the Flstn has 2 complaints (7 years in the data). This year has 6, above average.
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Other years of this model
Questions and answers
What are the most common problems with the 2007 Harley-Davidson Flstn?
Owner complaints to NHTSA most often mention: engine and cooling, powertrain, electrical system. Total complaints: 6. The most frequent symptoms in complaint texts: knocking, grinding or other noise (17%), stalls while driving (17%), vibration (17%).
How many service bulletins (TSB) were issued for the 2007 Harley-Davidson Flstn?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2007 Harley-Davidson Flstn from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2007 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.