HER CHEE ATV-600 - Valve Spring Free Length

Ch. 6 CYLINDER HEAD & VALVE
6-8
Rocker Arm
Measure the cam rocker arm I.D., and wear or
damage, oil hole clogged
Service Limit:
Replace if more 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 if less than 11.936 mm.
Calculate the clearance between the rocker arm
shaft and the rocker arm.
Service Limit:
Replace if less than 0.10 mm.
Valve spring free length
Measure the free length of intake and exhaust
valve springs.
Service limit :
Inner spring : 35.20 mm
Outer spring : 36.90 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