Mazda 323 1988 Workshop Manual page 97

1B
TUNE-UP PROCEDURE
5. Connect a compression gauge to the No. 1 spark
plug hole.
6. Fully depress the accelerator pedal and crank the
engine.
7. Check whether the gauge reads within the limits -~'~
Standard compression:
1,079 kPa (11.0 kg/cm*, 156 psi)
Compression limit:
755 kPa (7.7 kg/cm*, 109 psi)
8. Check each cylinder.
9. Refit the primary wire connector securely to the ig,
nition coil.
10. Install the spark plugs and high-tension leads.
Ignition Timing
1. Warm up the engine and run it at idle.
2. Turn all electric loads OFF.
3. Connect a timing light tester.
4. Disconnect the vaccum hose from the vacuum
control, and plug the hose.
5. Disconnect the black connector at distributor.
6. Check that the ignition timing mark (yellow) on the
crankshaft pulley and the timing mark on the tjm-
ing belt cover are aligned.
ignition timing: 12" f lo BTDC
7. If necessary, adjust the ignition timing by turning
the distributor.
8. Reconnect the vacuum hose and the black con-
nector at distributor.
Idle Speed
1, Connect a tachometer to the engine.
2. Turn off all lights and other unnecessary electrical
loads.
3. Check the idle speed. If necessary, turn the air ad-
just screw and adjust to specifications.
Idle speed: 850 f 50 rpm