3. INSPECTION/ADJUSTMENT MXU 550EXi/MXU500i
Wrench Thickness Gauge Valve Adjusting
Adjust by loosening the valve adjusting
screw lock-nut and turning the adjusting
screw until there is a slight drag on the
thickness gauge.
Valve clearance (when cold):
IN.: 0.1 mm
EX.: 0.1 mm
Apply oil to the valve adjusting screw lock-
nut threads and seating surface.
Hold the adjusting screw and tighten the Lock Nut
lock nut.
Special tool:
Valve adjusting wrench A120E00080
Torque: 0.9 kgf-m (9 N-m)
After tightening the lock nut, recheck the
valve clearance.
Install the removed parts in the reverse
order of removal.
IDLE SPEED INSPECTION
The engine must be warm(80°C over)
for accurate idle speed inspection
Warm up the engine before this operation.
Start the engine and connect a tachometer
or kymco diagnostic tool.
attached the specified idle speed.
Idle Speed: 1400100 rpm
Idle Speed
3-11
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