9 - 10
–
+
ELEC
IGNITION SYSTEM
EB802010
TROUBLESHOOTING
Procedure
Check:
1.Fuse (main, ignition)
2.Battery
3.Spark plug
4.Ignition spark gap
5.Spark plug cap resistance
6.Ignition coil resistance
IF THE IGNITION SYSTEM FAILS TO OPERATE (NO SPARK OR INTERMITTENT SPARK):
7.Engine stop switch
8.Main switch
9.Pickup coil resistance
10.Charging/rotor rotation direction detection
coil resistance
11.Wiring connection (the entire ignition
system)
NOTE:
●
Remove the following part(s) before
troubleshooting:
1)Seat
2)Fuel tank side panels
3)Front carrier
4)Front fender
●
Use the following special tool(s) for
troubleshooting.
Dynamic spark tester:
P/N. YM-34487
Ignition checker:
P/N. 90890-06754
Pocket tester:
P/N. YU-03112, 90890-03112
EB802011
CONTINUITY
1.Fuse (main, ignition)
Refer to “CHECKING THE SWITCH”.
NO CONTINUITY
Replace the fuse.
EB802012
CORRECT
2.Battery
●
Check the battery condition.
Refer to “CHECKING THE BATTERY” in
CHAPTER 3.
Open-circuit voltage:
12.8 V or more at 20 °C (68 °F)
INCORRECT
●
Clean the battery terminals.
●
Recharge or replace the battery.
3.Spark plug
●
Check the spark plug condition.
●
Check the spark plug type.
●
Check the spark plug gap.
Refer to “CHECKING THE SPARK PLUG”
in CHAPTER 3.
Standard spark plug:
DR8EA/NGK
Summary of Contents for YFM45FAR
Page 1: ...YFM45FAR YFM450FAR 5ND2 AE1 SERVICE MANUAL ...
Page 2: ......
Page 8: ......
Page 9: ...GEN INFO 1 ...
Page 11: ...GEN INFO ...
Page 27: ......
Page 28: ...SPEC 2 ...
Page 30: ...SPEC ...
Page 41: ...2 11 SPEC Cylinder head tightening sequence Item Standard Limit MAINTENANCE SPECIFICATIONS ...
Page 53: ...2 23 SPEC 1 Radiator 2 Thermostat È To coolant reservoir COOLANT FLOW DIAGRAMS ...
Page 54: ...2 24 SPEC OIL FLOW DIAGRAMS 1 Camshaft 2 Crankshaft 3 Drive axle OIL FLOW DIAGRAMS ...
Page 55: ...2 25 SPEC 1 Oil filter OIL FLOW DIAGRAMS ...
Page 56: ...2 26 SPEC 1 Oil pump 2 Oil strainer OIL FLOW DIAGRAMS ...
Page 67: ...CHK ADJ 3 ...
Page 133: ......
Page 134: ...ENG 4 ...
Page 138: ...ENG ...
Page 227: ...COOL 5 ...
Page 229: ...COOL ...
Page 241: ......
Page 242: ...CARB 6 ...
Page 244: ...CARB ...
Page 252: ......
Page 253: ...DRIV 7 ...
Page 255: ...DRIV ...
Page 287: ......
Page 288: ...CHAS 8 ...
Page 343: ...ELEC 9 ...
Page 345: ... ELEC ...
Page 348: ...9 3 ELEC CHECKING THE SWITCH ...
Page 393: ......
Page 394: ...TRBL SHTG 10 ...
Page 396: ...TRBL SHTG ...
Page 403: ......
Page 404: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...