17. IGNITION SYSTEM ATV 300/250 Ignition Unit IGNITION UNIT /CHANGE GEAR CONTROL INSPECTION Remove the seat. (Refer to the chapter 2) Disconnect the ignition unit coupler and remove the ignition unit. Disconnect the change gear control coupler and remove the change gear control. Measure the resistance between the terminals using the electric tester. · Due to the semiconductor in circuit, it is Change Gear Control necessary to use a specified tester for accurate testing. Use of an improper tester in an improper range may give false readings. Ignition Unit · Use a YF-3501 Electric Tester. · In this table, "Needle swings then returns" indicates that there is a charging current applied to a condenser. The needle will then remain at "" unless the condenser is discharged. IGNITION UNIT INSPECTION Testing Range (at 20°C) Unit: Probe Blue/ Green / Black / Green/ Black/ Green (-)Probe Yellow Gray White White Yellow Blue/ 10.56M 90.4K 10.56M 46K Yellow Green / 12.73M 12.73M 12.73M Gray Black / 999 White Green/ 90.4K 10.56M 10.56M 46K White Black/ 999 Yellow Green 44.4K 10.56M 44.4K 10.56M Note: The readings in this table are taken with a YF-3501 Tester. 17-4