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

Valve Springs Compression @ Spec Length	Valve Open To Maximum Limit	180 at 1.16 Pound Force At Inch (lbf @ in)
	Valve Closed	65 at 1.58 Pound Force At Inch (lbf @ in)
Free Length (approximate)		1.84 Inch (in)
Installed Spring Height		1.650 - 1.736 Inch (in)
Service Limit		10% Force Loss @ Specified Height