11.2 Failure Diagnosis
Low compression pressure Noise in the cylinder head
valve clearance is not adjusted properly valve clearance is not adjusted properly
valve is burnt or bent valve spring is damaged
air tightness of valve seat is not good camshaft worn or damaged gasket
cylinder head is gas-leaking
camshaft and valve rocker is worn
the spark plug is installed improperly
High compression pressure
Excessive carbon deposit in combustion chamber
11.3 Cylinder Head
①
Removal
Remove the nut.
①: cylinder cover
②: nut
②
Remove the bolt, and take off the chain tensioner and
gasket.
①
①：chain tensioner
②：bolt
②
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