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: Specifications

Valve Open To Maximum Lift	193 - 217 at 1.17 Pound Force At Inch (lbf @ in)
Valve Closed	64 - 72 at 1.60 Pound Force At Inch (lbf @ in)
Free Length (Approximate)	1.83 Inch (in)
Installed Spring Height	1.650 - 1.736 Inch (in)
Service Limit	10% Force Loss @ Specified Height