System Specifications

Air Fuel Mixture [1]
CO content less than 7.0 %

Firing Order 1-3-4-2

Idle Speed [2]
M/T 700 ± 50 rpm
A/T 700 ± 50 rpm

Ignition Timing
At Idle Speed 20° ± 2° BTDC

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



Valve Adjustment [3]
Intake (hot) 0.012 - 0.015in (0.31 - 0.39mm)
Exhaust (hot) 0.013 - 0.016in (0.33 - 0.41mm)

Crankshaft Rotation
Viewed From Front Of Motor clockwise

[1] At idle with 2.5K ohm resistor in place of engine temperature and O2 sensor disconnected.
[2] At operating temperature and transmission in neutral.
[3] Shim type adjusters