Yamaha XC125 Service Manual page 80

L__]_I. ENGINE ASSEMBLY AND ADJUSTMENT
Z.(_ 1. Install:
; .:_ • Rocker arms (_
,_ ,- _ o Rocker arm shafts (_
NOTE:
Rocker arm shaft end with inside thread, must
;_ face out of cylinder head otherwise rocker arm
shaft cannot be removed.
x-
2. Install:
= Camshaft
Loosen the valve adjusters on both valves
before installing. Align the slot (_) on
the camshaft end with the timing mark
(_) on the cylinder head.
• Stopper plate (_)
Bolt (Stopper Plate):
7 Nm (0.7 m.kg, 5.1 ft.lb)
3. Install:
• Cylinder head gasket (New)
o Dowel pins
., _ ..... 4. Install:
® Cylinder head
Route the cam chain through the cam
chain journal in the cylinder head.
® Washers
• Bolts (Cylinder head)
5. Tighten:
® Bolts (Cylinder head)
Tighten the bolts in numerical order.
Bolt (Cylinder Head):
M8:22 Nm (2.2 m-kg, 16 ft.lb)
M6:10 Nm (1.0 m.kg, 7.2 ft.lb)
6. Align:
® Flywheel "T" mark (_
(with stationary pointer (_))
NOTE:
Be sure to keep cam chain taut while turning
crankshaft.
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