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

Free Length	Approx.	1.876 Inch (in)
Spring Load	Valve Closed	71-79 at 1.64 Pound Force At Inch (lbf @ in)
	Valve Open	202-218 at 1.216 Pound Force At Inch (lbf @ in)
Inside Diameter	Top	0.827-0.847 in.
Height	Installed	1.640 Inch (in)