Ajs 18s Common Problems
Known issues to inspect before buying a used Ajs 18s. What to check and how much repairs cost.
Engine overheating due to cooling system failures
SERIOUSCoolant level, radiator condition, fan operation at idle
Fix cost: $200-$600
Electrical gremlins and ECU faults
MODERATEWarning lights, check full electrical function before buying
Fix cost: $150-$500
Brake caliper corrosion and sticking
MODERATEEven brake feel, inspect calipers for rust and leaks
Fix cost: $100-$350
Chain and sprocket wear from neglect
MINORChain slack, sprocket teeth sharpness, lubrication condition
Fix cost: $80-$200
Pre-Purchase Checklist
☐Pull full service history records
☐Cold start test for smoke or hesitation
☐Check frame for crash damage or welds
☐Verify VIN matches all documents
Decent build, but maintenance history is everything