Mechanical Specifications

Air Fuel Mixture
CO content [1] between 0.2 & 8 %

Firing Order 1-2-3-4-5-6

Idle Speed
At operating temperature, in neutral 750 ± 50 rpm

Ignition Timing
At 750 rpm 15° ± 2° BTDC

Spark Plug Gap 0.039 - 0.043in (1.0 - 1.1mm)

Valve Adjustment Hydraulic

[1] With 2.5 K ohm resistor in place of engine temp sensor and Oxygen (O2) sensor disconnected