Operation CHARM: Car repair manuals for everyone.
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

System Specifications

BASE IGNITION TIMING [1] 5° BTDC ± 2° At Idle

ADVANCE IGNITION TIMING [2] 10° BTDC At Idle

SPARK PLUG GAP
Standard plugs .039 - .043 in (1.0 - 1.1 mm)


PRIMARY COIL RESISTANCE
At 20°C (68°F) 0.90 - 1.20 ohms

SECONDARY COIL RESISTANCE
At 20°C (68°F) 20 - 29K-ohms



[1] Refer to ADJUSTMENT PROCEDURES.
[2] Not adjustable.