Honda XL125LK, Руководство пользователя, Страница: 47 / 243

3-6
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MAINTENANCE
VALVE CLEARANCE
INSPECTION
Inspect and adjust
the valve clearance
while the engine is
cold (below 35°C/
95°F).
Remove the cylinder head cover (page 8-4).
Remove the timing and crankshaft hole caps.
Rotate the crankshaft counterclockwise and align the
"T" mark [1] on the flywheel with the index notch [2] in
the crankcase cover.
Make sure the piston is at TDC (Top Dead Center) on
the compression stroke.
This position can be obtained by confirming that there is
slack in each rocker arm. If there is no slack, it is
because the piston is moving through the exhaust
stroke to TDC. Rotate the crankshaft one full turn and
match up the "T" mark again.
When checking the
clearance, slide the
feeler gauge from
the center toward
the outside.
Check the clearances of the intake and exhaust valves
by inserting the feeler gauge [1] between the adjusting
screw and valve stem.
Adjust by loosening the lock nut [1] and turning the
adjusting screw [2] until there is a slight drag on the
feeler gauge.
Apply engine oil to the lock nut.
Hold the adjusting screw and tighten the lock nut.
After tightening the lock nut, recheck the valve
clearance.
Coat new O-rings [1] with engine oil and install them
onto the crankshaft hole cap [2] and timing hole cap [3].
Apply grease to crankshaft hole cap threads.
Install the caps and tighten them to the specified torque.
Install the cylinder head cover (page 8-4).
[1]
[2]
VALVE CLEARANCE:
IN: 0.08 ± 0.02 mm (0.003 ± 0.001 in)
EX: 0.12 ± 0.02 mm (0.005 ± 0.001 in)
[1]
TOOL:
[3] Valve adjusting wrench
07708-0030400
TORQUE: 14 N·m (1.4 kgf·m, 10 lbf·ft)
[1]
[2]
[3]
TORQUE:
Crankshaft hole cap: 15 N·m (1.5 kgf·m, 11 lbf·ft)
Timing hole cap:
10 N·m (1.0 kgf·m, 7 lbf·ft)
[1] [3]
[2]