Valve Spring
Valve timing
57 Tensioning spring
58 Rocker arm shaft
58a Rocker arm shaft
59 Rocker arm
59a Rocker arm bearing bushing
62 Valve spring retainer
63 Cap nut
63a Counternut
64 Valve spring
65 Bearing bracket
66 Valve shaft seats
67 Screw
67a Washer
68 Fitted sleeve
69 Rotocap
70 Intake valve
71 Exhaust valve