IllustrationFRONT / REAR HEAD GASKET FAILED. *YC
1998 HARLEY-DAVIDSON Sportster
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sportster years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 6 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Exterior Lighting. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
1 crash reports0 fire reports0 injury reports
Electrical System complaints
2 reportsMOTORCYCLE WOULD BACKFIRE AND STALL WHEN GIVING IT THROTTLE GOING FROM A STOP OR IDLING. I QUICKLY DIS-ENGAUGED THE CLUTCH TO START THE MOTOR BACKUP, BUT THE CAR IN THE SECOND LANE WAS ALREADY LOCKING HIS BRAKES. I DID MANAGE TO GET THE BIKE STARTED IN THE KNICK OF TIME, AND THE ONCOMING CAR MISSED ME BY ONLY A FEW FEET. I AM…
Read full complaint
MOTORCYCLE WOULD BACKFIRE AND STALL WHEN GIVING IT THROTTLE GOING FROM A STOP OR IDLING. I QUICKLY DIS-ENGAUGED THE CLUTCH TO START THE MOTOR BACKUP, BUT THE CAR IN THE SECOND LANE WAS ALREADY LOCKING HIS BRAKES. I DID MANAGE TO GET THE BIKE STARTED IN THE KNICK OF TIME, AND THE ONCOMING CAR MISSED ME BY ONLY A FEW FEET. I AM AN EXPERIENCED MOTORCYCLE OPERATOR, AND DID NOT POP THE CLUTCH AND STALL IN THAT MANNER. THE MOTORCYCLE MAKES A LOUD POP COMING UP THROUGH THE CARBURATOR, WHEN IT BACKFIRES.
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.