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11.2 Fault Diagnosis
Low compression pressure Noisy cylinder head
Improperly adjusted valve clearance Improperly-adjusted valve clearance
Valve burnt or bent Valve spring hurt
Poorly sealed valve race Over-high compression pressure
Air leakage at cylinder head Too much carbon deposited in the combustion chamber
Improperly installed spark plug
11.3 Cylinder Head
Removal
Loosen the fastening bolt, and
remove the cylinder head cover
(rocker arm, rocker arm shaft)
Remove the tensioner, loosen the chain
and remove the can shaft.
Cylinder
head cover
Bolt
Tensione