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

Compression Check

Cylinder Compression

Fully open the throttle valve

Standard compression pressure 1400 kPa (14.0 kgf/cm2, 203 psi) or more
Minimum pressure 980 kPa (10.0 kgf/cm2, 142 psi)
Pressure difference 100 kPa (1.0 kgf/cm2, 14.5 psi) or less