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IGNITION SYSTEM
6.
If there is a deviation from the standard value, loosen the
distributor's holding nut, and then turn the distributor itself
and make the necessary adjustment.
NOTE
The ignition timing will be advanced if the distributor is
turned to the left and retarded if it is turned to the right.
7.
Alter adjustment. securely tighten mounting nut.
CAUTION
Be careful, when tightening the nut, that the distributor
does not move.
8. Stop the engine.
9. Disconnect the lead wire connected at step 3.
10. Start and run the engine at curb idle speed.
11. Check to be sure that the idling ignition timing is the correct
timing.
Basic ignition timing: 10
0
BTDC
CHECKING IGNITION COILS
Y27DHQA
1.
Measurement of the primary coil resistance.
Measure the resistance of the positive (+) terminal and neg-
ative (-) terminal of the ignition coil.
Standard value: 0.8
±
0.080
2.
Measurement of the secondary coil resistance.
Measure the resistance between the ignition coil's positive
(+) terminal and the high-voltage terminal.
Standard value: 12.1
±
1.21 kO
High-
voltage
~terminal
POWER TRANSISTOR
Y270JOA
1.
Connect the negative (-) terminal of the 3V power supply
to terminal 2 of the power transistor; then check whether
there is continuity between terminal 3 and terminal 2 when
terminal 1 and the positive
(+)
terminal are connected and
disconnected.
Terminal 1 and
(+)
terminal
Terminal 3 and terminal 2
Connected
Continuity
Unconnected
No continuity
2.
Replace the power transistor if there is a malfunction.
~
-/7)0
='0
o
0
®
e
27-37
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