Ignition System - Yamaha XVS650 Service Manual

IGNITION SYSTEM
I
ELEC
I
0
I
EB802010
TROUBLESHOOTING
IF THE IGNITION SYSTEM FAILS TO OPERATE (NO SPARK OR INTERMITTENT SPARK):
Procedure
Check:
1.Fuses (main and ignition)
2. Battery
3.Spa rk plugs
4.lgnition spark gap
5.Spark plug cap resistance
6.lgnition coil resistance
7.Pickup coil resistance
NOTE: _
• Remove the following part(s} before trou-
bleshooting:
1)Battery cover
2)Rider's seat
3}Fuel tank
4)Steering head side covers
• Use the following special tool(s) for trou-
bleshooting.
EB802011
1.Fuses (main and ignition)
Refer to IISWITCH INSPECTION".
~
CONTINUITY
EB802012
2.Battery
• Check the battery condition.
Refer to
II
BATTERY INSPECTION" in
CHAPTER 3.
Open-circuit voltage:
12.8 V or more at 20°C (68°F)
.~
CORRECT
*
7-6
8.Main switch
9.Engine stop switch
10.Neutral switch
11.Sidestand switch
12.Relay unit (diode)
13.Wiring connection (the entire ignition
system)
Dynamic spark tester:
YM-34487
Ignition checker:
90890-06754
Pocket tester:
YU-03112, 90890-03112
NO CONTINUllY
I
Replace the fuses.
INCORRECT
• Clean the battery terminals.
• Recharge or replace the battery.