3. INSPECTION/ADJUSTMENT
3-11
MXU 500
VALVE CLEARANCE
To adjust:
Remove the right floorboard (refer to the
“FRAME COVERS” section in the chapter
2).
Remove the cylinder head cover (refer to
the “CYLINDER HEAD COVER
REMOVAL/INSTALLATION” section in
the chapter 8).
Remove the timing hole cap and O-ring.
Remove the recoil starter and O-rings (refer
to the “STARTER PULLEY
REMOVAL/INSPECTION/
INSTALLATION” section in the chapter
8).
Turn the crankshaft clockwise and align the
“T” mark on the flywheel with the index
mark on the right crankcase cover.
The punch marks on the camshaft should
face upward as shown.
If the punch marks on the camshaft are
facing downward, turn the crankshaft
clockwise one full turn (360°) and the
punch marks are facing upward.
Inspect and adjust the valve clearance
while the engine is cold (Below
35°C/95°F).
*
Crankshaft Hole Cap/O-ring
Timing Hole Cap/O-ring
Punch Marks
“T” Mark
Index Mark