Qj Motor Srk 400 Common Problems
Known issues to inspect before buying a used Qj Motor Srk 400. What to check and how much repairs cost.
Carburetor clogging and fuel delivery issues
MODERATECold start difficulty, rough idle, hesitation on throttle
Fix cost: $50-$150
Electrical gremlins, poor connector quality
MODERATECheck all lights, dash, indicators function correctly
Fix cost: $30-$200
Engine oil leaks from gaskets
MODERATEInspect around valve cover and engine cases carefully
Fix cost: $80-$250
Cheap chain and sprocket wear
MINORCheck chain slack, sprocket teeth for hooking or wear
Fix cost: $60-$120
Pre-Purchase Checklist
☐Cold start the engine yourself, listen carefully
☐Check frame welds and subframe for cracks
☐Verify service history and oil change records
☐Test ride over 30mph for vibration issues
Decent budget bike, electrical and fuel need attention