Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Valve, Intake/Exhaust

Valve
Head edge thickness
Intake
STD 1.0 mm (0.039 inch)
Limit 0.6 mm (0.024 inch)
Exhaust
STD 1.2 mm (0.047 inch)
Limit 0.6 mm (0.024 inch)
Stem diameter
Intake 5.950 - 5.965 mm (0.2343 - 0.2348 inch)
Exhaust 5.945 - 5.960 mm (0.2341 - 0.2346 inch)
Stem oil clearance
STD
Intake 0.035 - 0.062 mm (0.0014 - 0.0024 inch)
Exhaust 0.040 - 0.067 mm (0.0016 - 0.0026 inch)
Limit 0.15 mm (0.0059 inch)
Overall length
Intake 120.6 mm (4.75 inch)
Exhaust 121.7 mm (4.79 inch)