Cylinder Head Removal - Sym HD 125 Service Manual

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6. CYLINDER HEAD/VALVE

Cylinder Head Removal

Vacuum tube
Clamp strip
Remove seat, luggage box and body cover.
Remove engine. (Refer to chapter 5)
Remove the clamp strip bolt of carburetor, and
disconnect vacuum tube from the carburetor
insulator.
Remove Air Injection system (AI) pipe mounting
bolt.
AI. Pipe bolt
Remove 1 bolt of thermostat and then remove the
Thermostat bolt
thermostat.
Remove hole cap for the adjustment bolt of cam
chain tensioner, and then loosen the tensioner by
turning a flat-driver in C.W direction.
Hole cap of adjustment bolt
Remove the side cover mounting blots of cylinder
2 bolts
head, and then take out the side cover.
Remove cam sprocket bolts and then remove the
2 bolts
sprocket by prying chain out.
6-4