User`s manual

Common Faults and Troubleshooting
Fault system
Fault
Causes
Troubleshooting
Engine Mechanical
Compression ratio is too
high
There is too much carbon buildup in the combustion
chamber and on the top of the piston.
Clean the carbon buildup in the combustion chamber and
on the top of the piston.
Excessive noise from
engine.
Valves are incorrectly adjusted.
Readjust the valve clearance
The air valve is broken
Replace the air valve
Internal engine damage from oil starvation
Replace damaged engine internals
The cylinder compression is
low
Damage to cylinder, rings, valves, piston possible Replace damaged parts
Excessive smoke from
muffler
Worn/ damaged piston rings
Replace the piston, rings, cylinder
Oil leaking past valve seals.
Replace valve seals
Wear on piston and piston rings
Replace the piston, rings/ cylinder
The cylinder head leaks.
Valves not adjusted at 500 mile servicing
Cylinder head needs to be replaced
Front Wheel
The front wheel vibrates
The front shock absorber is faulty
Replace the front shock absorber
The triple tree is bent from a crash
Replace triple tree
The front wheel is damaged
Replace front wheel
Object in tire
Replace tire
The front wheel bearings are worn out or damaged.
Replace the front wheel bearings.
The front wheel has play in it
The front wheel is damaged
Replace the front wheel
The front wheel nut is loose
Torque the front wheel nut to the proper specification
The tire pressure is too low.
Increase the tire pressure.
The front wheel bolt is loose.
Torque the front wheel nut to the proper specification