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
If it fails: lemon-manuals.org.ua

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Valve Spring

NOTE: Specifications are for intake and exhaust unless noted.

Compression Pressure @ Height *
Valve Open: 979 N (220 lbs.) 30.0 mm (1.18 inch)
Valve Closed: 375 N (85 lbs.) 41.9 mm (1.65 inch)
Service Limit
Pressure Loss @ Specified Height 10%

* Without damper.