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 Spring

Free Length 48.04 mm (1.8913 inch)
Squarenes 2.5°, 2.1 mm (0.083 inch)
Tension/Spring Height:
146.1 - 167.7 N
14.9 - 17.1 kg, 32.9 - 37.7 lbs/42.0 mm (1.654 inch)
455.0 - 523.7 N
46.4 - 53.4 kg, 102.3 - 117.7 lbs/83.4 mm (1.315 inch)