18-4IGNITION SYSTEMREPLACEMENTRemove the high-tension cord from the plug, removethe plug cap.Remove the primary wire from the ignition coil.Loosen the ignition coil mounting bolt securing theframe, remove the ignition coil.Install in the reverse order of removal.IGNITION COIL INSPECTIONDisconnect the primary wire .Measure the resistance between the two terminals of theignition primary coil.If the resistance value is within the specified range thecoil is good.If resistance is (infinite), replace the coil with a new one.STANDARD VALUE : 0.73 0.08With the spark plug cap on, measure the resistance betweenthe primary coil terminal and the spark plug cap.If the resistance value is within the specified range,then the coil is good.If the resistance is (open wire), disconnect the sparkplug cap and measure the secondary coil resistance.STANDARD VALUE : 15 1.25Since the resistance value of the primary coil is small, it istoo diffcult to judgment even if the problem happen fromthe short circuit.Dont’t measure the secondary coil voltage of ignition coil