Valve Clearance Adjustment - Yamaha EF2000iS Manuel D'atelier

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VALVE CLEARANCE ADJUSTMENT

2-16
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.
TIP
Valve clearance must be measured when the
engine is cool to the touch.
Intake Valve (cold):
0.07 – 0.12 mm
(0.0028 – 0.0047 in)
Exhaust Valve (cold):
0.07 – 0.12 mm
(0.0028 – 0.0047 in)
Thickness gauge:
YU-26900-9, 90890-03079
5. Adjust:
9 Valve clearance
INSP
ADJ

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