Yamaha Scorpio - Troubleshooting

7 - 9
– +
ELEC
IGNITION SYSTEM
TROUBLESHOOTING
Procedure
Check;
1.Spark plug
2.Ignition spark gap
3.Spark plug cap resistance
4.Ignition coil resistance
5.Main switch
6.Engine stop switch
7.Source coil resistance
8.Pickup coil resistance
9.Wiring connection (ignition system)
N
OTE:
●
Remove the following parts before troubleshooting.
1)Headlight unit
2)Seat
3)Fuel tank
●
Use the following special tools in this troubleshooting.
IF IGNITION SYSTEM SHOULD BECOME INOPERATIVE
(NO SPARK OR INTERMITTENT SPARK)
Pocket tester:
90890-03112
Ignition checker:
90890-06754
CORRECT
1.Spark plug
●
Check the spark plug type, condition and
gap.
Refer to the “SPARK PLUG INSPECTION”
section in CHAPTER 3.
Standard spark plug:
D8EA (NGK) or X24ES-U (DENSO)
Spark plug gap:
0.6 ~ 0.7 mm
*
INCORRECT
Repair or replace spark plug.