51
NOTE
Always ensure to reinstall the drain tube after
draining the deposit.
(1) Drain tube
1
Excessive valve clearance will cause noise, and
little or no clearance will prevent the valve
from closing and cause valve damage and
power loss. Check valve clearance at the
specified intervals (page 42).
VALVE CLEARANCE ADJUSTMENT
This condition can be determined by moving
the rocker arms. If they are free, it is an
indication that the valves are closed and the
piston is in compression stroke. If they are
tight, the valves are open, rotate the flywheel
360° anticlockwise and realign the “T” mark
with the index mark.
•
Rotate the flywheel anticlockwise until the
“T” mark (3) on the flywheel coincides with
the index mark (4) on the left crankcase
cover. In this position the piston will either
be on the compression or exhaust stroke.
•
Remove the cylinder head cover.
The adjustment must be made when the
piston is at top dead center and both the inlet
and exhaust valves are closed.
The checking or adjusting of valve clearance
should be performed while the engine is cold.
The clearance will change as the engine
temperature rises.
NOTE
41
(3) 'T' mark (4) Index mark
(1) Crankshaft hole cap (2) Timing hole cap
3
2
• Remove the crankshaft hole cap (1), timing
hole cap (2).
• Remove the ing, front cowl and fuel side far
tank.
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