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

Air Injection Bypass Valve: Testing and Inspection

1. Disconnect air hose at the check valve.

2. Open the choke and start and run engine at 1500 RPM. Air should flow from the hose.

3. Close choke. No air should flow from the hose at full choke. Replace bypass valve if air flow is noted.