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 (Approx.)	1.876 Inch (in)
Spring Tension - Valve Closed	71 - 79 at 1.216 Pound Force At Inch (lbf @ in)
Spring Tension - Valve Open	202 - 218 at 1.216 Pound Force At Inch (lbf @ in)
Inside Diameter	0.827 - 0.847 Inch (in)
Installed height	1.640 Inch (in)