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

Electrical Specifications


IDLE SPEED 750 ± 25 rpm [1]

IGNITION TIMING 9° ± 1° BTDC [1]

FIRING ORDER 1-3-4-2

PRIMARY COIL RESISTANCE (at 68°F, 20°C) 0.72 - 0.88 ohms

SECONDARY IGNITION COIL RESISTANCE (at 68°F, 20°C) 10.3 - 13.9 K ohms

SPARK PLUG WIRE RESISTANCE 16 K ohms per 3.28 ft (1 m)

SPARK PLUG GAP 0.039 - 0.043 in (1.0 - 1.1 mm)

[1] Test connector grounded.