Section 3 Troubleshooting The Ignition System Failure - ATV 250 Service Manual

Section 3 Troubleshooting the ignition system failure

If the ignition system does not work(no spark or spark stops)
Step
Check
1.Spark plug
2.Ignition park clearance
3.Resistance value of spark plug cap
4.Resistance value of ignition coil
5.Engine stop switch
Remark
. R e m o v e f o l l o w i n g c o m p o n e n t s b e f o r e
troubleshooting:
1)Cushion
2)Front frame
3)Front fender
Check and repaire with following special tools.
1.Spark plug
.Check the spark plug condition
.Check the spark plug type
.Check the spark plug clearance
Refer to chapter 3 "Check spark plug"
Spark plug clearance
0.6~0.7mm(0.024~0.028 in)
correct
6.Main switch
7.Resistance value of triggering coil
8.Resistance value of charge coil
9.Circuit connection (whole ignition system)
Power spark tester:
Ignition tester:
Pocket multimeter:
Standard spark plug
D8RTC
Incorrect
Repair or replace the spark plug
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