Valve Clearance Adjustment - Yamaha EF2400iS Service Manual

VALVE CLEARANCE ADJUSTMENT

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SCF2160
SCF2170
VALVE CLEARANCE ADJUSTMENT
1. Remove:
9 Rear cover
Refer to "COVERS AND FUEL TANK".
2. Remove:
9 Spark plug cap 1
9 Spark plug 2
9 Breather hose 3
9 Cylinder head cover 4
3. Gently operate the starter rope to bring
the piston to the top-dead-center of its
compression stroke (when the screwdriv-
er inserted into the spark plug hole reach-
es the highest position).
4. Measure:
9 Valve clearance
Out of specification → Adjust.
NOTE:
Valve clearance must be measured when the
engine is cool to the touch.
Intake Valve (cold):
0.1 mm (0.004 in)
Exhaust Valve (cold):
0.1 mm (0.004 in)
Thickness gauge:
YU-26900-9, 90890-03079
2-11
INSP
ADJ