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7. CYLINDER HEAD/VALVES ATV 300/250
Measure compressed force (valve spring)
and installed length.
Replace if out of specification.
Service limits:
IN : 10.2011.84 kg (at 18.05 mm)
EX : 19.1422.02 kg (at 21.5 mm)
Measure the spring tilt.
Replace if out of specification.
Service limits: IN : 0.8 mm (0.032 in)
EX : 1.07 mm (0.428 in)
7-11