Service manual

TROUBLESHOOTING
SERVICE MANUAL NUMBER 26
90-861329--1 MARCH 1999 Page 1C-13
Ignition System Check (2 of 2)
5
REPLACE IGNITION COIL AND
RECHECK FOR SPARK WITH
TIMING LIGHT. IF STILL NO
SPARK, REINSTALL ORIGINAL
COIL AND REPLACE
DISTRIBUTOR MODULE.
LIGHT ON
STEADY
LIGHT
BLINKS
NO DROP IN VOLTAGE
CHECK MODULE GROUND.
IF OK, REPLACE MODULE.
• CHECK FOR SPARK FROM COIL WIRE
WITH TIMING LIGHT AS TEST LIGHT IS
REMOVED FROM MODULE TERMINAL
VOLTAGE DROPS
6
SPARK
• REPLACE IGNITION COIL
AND REPEAT STEP 5.
NO SPARK
• IS ROTATING POLE
PIECE STILL MAGNETIZED?
SYSTEM OKIGNITION COIL REMOVED IS OK,
REINSTALL COIL AND CHECK
COIL WIRE FROM DIST. CAP. IF
OK, REPLACE DISTRIBUTOR
MODULE.
REPLACE POLE
PIECE AND
SHAFT ASSEMBLY.
NO
YES
CHECK PICK-UP COIL OR
CONNECTIONS (COIL
RESISTANCE SHOULD BE
500-1500 OHMS AND
NOT GROUNDED.)
Fig. 1
TEST LIGHT
TO DC
POWER
SUPPLY
(1.5 to 8 V)
b
a
NO SPARK
SPARK
CHART CONTINUED
FROM PREVIOUS
PAGE
• DISCONNECT DISTRIBUTOR 4 TERMINAL CONNECTOR.
• REMOVE DISTRIBUTOR CAP.
• DISCONNECT PICK-UP COIL CONNECTOR FROM MODULE.
• CONNECT VOLTMETER FROM TACH. TERMINAL TO GROUND.
• IGNITION “ON.”
• INSULATE A TEST LIGHT PROBE TO 1/4, FROM TIP AND
NOTE VOLTAGE, AS TEST LIGHT IS MOMENTARILY CON-
NECTED FROM A VOLTAGE SOURCE (1.5 TO 8 V) TO MODULE
TERMINAL “P” (CHART 1 OF 2 PAGE 11).
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