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

Combustion chamber volume 53.5 - 50.5 cc (3.2648 - 3.0817 cubic inch)
Valve arrangement (front to rear) - LH E-I-E-I-E-I-E-I
Valve arrangement (front to rear) - RH I-E-I-E-I-E-I-E
Valve head diameter - intake 44.63 - 44.37 mm (1.7571 - 1.7469 inch)
Valve head diameter - exhaust 36.01 mm (1.4177 inch)
Valve face runout 0.05 mm (0.0020 inch)
Valve face angle 45.75 - 45.25 degrees