Cylinder Head Disassembly - Sym GTS 250 Service Manual

6. Cylinder Head / Valve

Cylinder Head Disassembly

Remove cam shaft setting plate (1 bolt).
Remove rocker arm shafts and rocker arms.
Special Service Tool:
Rocker arm and cam shaft puller SYM-1445100
Remove cam shafts.
Special Service Tool:
Rocker arm and cam shaft puller SYM-1445100
Use a valve cotter remove & assembly tool to
press the valve spring, and then remove valves.
Caution
 In order to avoid loosing spring elasticity, do not
press the spring too much. Thus, press length
is based on the valve cotter in which can be
removed.
Special Service Tool:
Valve cotter remove & assembly tool
SYM-1471110-SY125
6-6
To this chapter contents
1 bolt
Cam shaft setting plate
Valve cotter remove
and assembly tool
Rocker arm shaft and
cam shaft puller
Cam shafts
Rocker arm
shaft and cam
shaft puller