Daihatsu CB-23 - Ignition Timing Control System Check [CB-23 Engine]

EMISSION CONTROL SYSTEM
;NITION TIMING CONTROL SYSTEM CHECK [CB-23 Engine]
Sub Main
Fig. 12-59
MAIN SIDE
Connect a vacuum gauge between the main side of the
- distributor and the carburetor.
2. If the pointer of the vacuum gauge registers 150 mmHg or
less during the idling, it means that the system is
functioning properly.
3. lncrease the engine speed gradually. If the negative
pressure in proportion to the throttle opening is registered,
it means that
:he system is functioning properly.
SUB SIDE
1. Connect a vacuum gauge between the sub side of the
distributor and the four-way joint.
2. If the vacuum gauge registers the manifold negative
pressure
(450 mmHg or more) during the idling operation,
it means that the system is functioning properly.
3. Increase the engine speed gradually. If the negative
pressure in proportion to the throttle opening is registered,
it means that the system is functioning properly.
I 150 mm~g or less I
L I
Fig. 12-60 WM-12066
4-way joint
I
1
Fig. 12-61 WM-12067