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 pressures:
New: 9-14 bar (131-203 psi).
Wear limit: 7.5 bar (109 psi).
Maximum difference between cylinders: 3 bar (44 psi).

NOTE:
Oil temperature above 86°F and throttle plate completely open.
If the test values are not within the specifications, recheck compression pressure after a test drive.