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

COMPRESSION
Compression Pressure At 250 RPM:
Standard 1,275 kPa (13.0 kg. sq. cm., 185 psi) Or More
Minimum 1,079 kPa (11.0 kg. sq. cm., 156 psi)
Difference Between Cylinder 98 kPa (1.0 kg. sq. cm, 14 psi) Or Less