Harley-davidson Fat Bob Common Problems
Known issues to inspect before buying a used Harley-davidson Fat Bob. What to check and how much repairs cost.
Primary chain tensioner wear and noise
MODERATEListen for rattling on cold start near primary cover
Fix cost: $200-$500
Cam chain tensioner failure on Twin Cam engines
SERIOUSCheck for ticking noise, ask for service history
Fix cost: $500-$1500
Electrical gremlins and charging system issues
MODERATETest battery voltage, inspect stator and regulator outputs
Fix cost: $150-$600
Fuel pump failure and stalling
MODERATEListen for weak fuel pump hum, check for stall reports
Fix cost: $300-$700
Pre-Purchase Checklist
☐Pull service records, verify cam tensioner done
☐Cold start test, listen for chain rattle
☐Check charging voltage at idle and revs
☐Inspect for crash damage on lower frame rails
Decent if maintained, avoid neglected examples