Troubleshooting - Suzuki RM-Z250 Owner's Service Manual

14-5 ELECTRICAL SYSTEM

TROUBLESHOOTING

No spark or poor spark
Step 1
1) Check the ignition system couplers for poor connections.
Is there connection in the ignition system couplers?
YES Go to Step 2.
NO Poor connection of couplers
Step 2
1) Measure the ignition coil primary peak voltage. ("14-8)
Is the peak voltage OK?
YES Go to Step 3.
NO Go to Step 4.
Step 3
1) Inspect the spark plug. ("2-7, -8)
Is the spark plug OK?
• Poor connection of the spark plug
YES
• Go to Step 4.
NO Faulty spark plug
Step 4
1) Measure the ignition coil/plug cap resistance. ("14-9)
Is the ignition coil/plug cap resistance OK?
YES Go to Step 5.
NO Faulty ignition coil/plug cap
Step 5
1) Measure the pick-up coil peak voltage. ("14-7)
Is the peak voltage OK?
YES Go to Step 7.
NO Go to Step 6.
Step 6
1) Measure the pick-up coil resistance. ("14-8)
Is the resistance OK?
YES Go to Step 7.
• Faulty pick-up coil
NO
• Metal particles or foreign material being stuck on the pick-up coil and rotor tip