Locker Arm Inspection - Yamaha EF3000iSE Service Manual

3. Measure:
• Valve stem runout
Runout limit:
Out of specification → Replace.
NOTE:
The value is half of that indicated on the dial
gauge.
SVU3190J
4. Measure:
• Valve spring free length a
Valve spring free length:
Out of specification → Replace.
SVU3200J
5. Measure:
• Valve spring tilt a
Tilt limit:
Out of specification → Replace.
SVU3210J
6. Inspect:
• Valve spring contact surface
More than 2/3 of the contact surface
does not contact → Replace.
SVU3220J

LOCKER ARM INSPECTION

1. Inspect:
• Locker arm
Wear/damage/cracks → Replace.
SVU3230J
3-30
ENG
VALVE
0.01 mm (0.0004 in)
Intake and exhaust:
26.5 mm (1.04 in)
Limit: 25.2 mm (0.99 in)
2.5°/1.6 mm (0.06 in)