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)

Or, hide this message: temporarily or permanently

Valve Spring

FREE LENGTH:

Intake:
Outer 41.05 mm (1.616 inch)
Inner:
Nihon Hatsujo Manufacturer 36.16 mm (1.424 inch)
Chuo Hatsujo Manufacturer 36.19 mm (1.425 inch)

Exhaust:
Nihon Hatsujo Manufacturer 41.96 mm (1.652 inch)
Chuo Hatsujo Manufacturer 41.94 mm (1.651 inch)