Rocker Arm; Rocker Arm Shaft; Valve Spring Free Length; Valve Stem - TGB BLADE 600 Service Manual

6. CYLINDER HEAD/VALVE

Rocker Arm

Measure the cam rocker arm I.D., and wear or
damage, oil hole clogged?
Service Limit: Replace when it is less than
12.080 mm.

Rocker Arm Shaft

Measure the active O.D. of the cam rocker arm
shaft and cam rocker arm.
Service Limit: Replace when it is less than
11.954 mm.
Calculate the clearance between the rocker arm
shaft and the rocker arm.
Service Limit: Replace when it is less than
0.10 mm.

Valve spring free length

Measure the free length of intake and exhaust
valve springs.
Service limit: 37.6mm
spring 41.1 mm

Valve stem

Check if valve stems are bend, crack or burn.
Check the operation condition of valve stem in
valve guide, and measure & record the valve
stem outer diameter.
Service Limit: IN: 4.90 mm
EX: 4.90 mm
6-8