Suzuki GW250 Service Manual page 386

9-22 ELECTRICAL SYSTEM
Step 3
1) Measure the ignition coil primary peak voltage. (9-23)
NOTE:
This inspection method is applicable only with the multi circuit tester and the peak volt adaptor.
Is the peak voltage OK?
YES Go to Step 4.
NO Go to Step 5.
Step 4
1) Inspect the spark plugs. (2-6 to -7)
Are the spark plugs OK?
YES Go to Step 5.
NO Faulty spark plug(-s).
Step 5
1) Inspect the ignition coil(-s). (9-24)
Is the ignition coil(-s) OK?
YES Go to Step 6.
• Poor connection of the ignition coil(-s).
NO
• Faulty ignition coil(-s).
Step 6
1) Measure the CKP sensor peak voltage and its resistance. (9-25)
NOTE:
The CKP sensor peak voltage inspection is applicable only with the multi circuit tester and peak volt adaptor.
Is the peak voltage and resistance OK?
• Faulty ECM.
YES • Open or short circuit in wire harness.
• Poor connection of ignition couplers.
• Faulty CKP sensor.
NO
• Metal particles or foreign material being stuck on the CKP sensor and rotor tip.