Troubleshooting - Yamaha YFS200R 2002 Service Manual

EB802010

TROUBLESHOOTING

IF THE IGNITION SYSTEM FAILS TO OPERATE (NO SPARK OR INTERMITTENT SPARK):
NOTE:
When the parking brake is used, engine speed is limited to 2,300 r/min. Be sure the parking brake is
released before moving the throttle lever. Otherwise, the engine will misfire, preventing normal
operation.
Procedure
Check:
1.Spark plug
2.Ignition spark gap
3.Spark plug cap resistance
4.Ignition coil resistance
5.Engine stop switch
6.Parking brake switch
7.Throttle switch
NOTE:
Remove the following parts before trouble-
G
shooting:
1)Seat
2)Fuel tank cover
3)Front panel
4)Fuel tank
Use the specified special tools for trouble-
G
shooting.
1.Spark plug
Check the spark plug condition.
G
Check the spark plug type.
G
Check the spark plug gap.
G
Refer to "SPARK PLUG INSPECTION" in
CHAPTER 3. (Manual No.: 2XJ-ME1)
Standard spark plug:
BR8ES/NGK
Spark plug gap:
0.7 ~ 0.8 mm (0.028 ~ 0.032 in)
CORRECT
*
IGNITION SYSTEM
8.Carburetor switch
9.Main switch
10.Pickup coil resistance
11.Charging/rotor rotation direction detection
coil resistance
12.Wiring connection (the engine ignition
system)
Dynamic spark tester:
P/N. YM-34487
Ignition checker:
P/N. 90890-06754
Pocket tester:
P/N. YU-03112, 90890-03112
INCORRECT
Repair or replace the spark plug.
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