Sym PA12B Service Manual page 102

Remove the cam-chain sprocket (bolt×2)
Caution
After removing the sprocket, you must
pull cam-chain out to prevent it from
falling into the crankcase.
Remove the 8mm bolt on the left side of the
cylinder head, then remove the cam-chain
tensioner holding bolt
Disassemble the cylinder head holding nut
(nut × 4)
Then remove the cylinder head
Clean up residues from the matching surfaces
of cylinder and cylinder head
Caution
Don't damage the matching surfaces of
cylinder and cylinder head
Avoid residues of gasket or foreign
materials falling into crankcase when
cleaning.
To this chapter contents
Bolt×2
8mm bolt
nut×4
7. Cylinder Head / Valve
Tensioner bolt
Tensioner bolt
7-5