CDI Electronics Outboard Ignition Troubleshooting Guide

173 Four Stroke Mercury 4 Stroke Ignitions 1 Cylinder Engines 2000-2005 0R036272 & UP with PACK # 803558T02 (3R1060601M/CU2688) 4/5/6 HP A Series By Tohatsu NO SPARK: 1. Disconnect the Brown kill wire. If fire returns, the kill circuit is shorted. Possibly the Stop switch or harness. 2. Verify the correct sparks plugs are installed. OEM recommends NGK DCPR6E, gapped at 0.035 in. 3. Check the stator resistance and DVA output as given below: WIRE READ TO OHM RESISTANCE DVA (Connected) Black/Red (Chg Coil) White 95-134 110 V- or more Red/Wht Black 149-243 2 V or more Brown (Kill Circuit) Black -- 10 V or more Black/Yellow Black 0.16-0.24 90 V or more High Tension Lead #1 Coil Core 3.0 -4.4K (Without boot) -- Sparkplug Boot to sparkplug Sparkplug Boot Wire Side 3.5-5.2K ENGINE WILL NOT STOP RUNNING: Disconnect the Brown kill wire and short it to engine ground. If it stops running, replace the kill switch. If it continues to run, replace the ignition pack. HIGH SPEED MISS: 1. Disconnect the Brown kill wire. If the miss is gone, replace the kill switch. 2. Verify the correct sparks plugs are installed. OEM recommends NGK DCPR6E, gapped at 0.035 in. 3. Check the stator resistance and DVA output as given below. If the voltage drops suddenly right before the miss becomes apparent, the charge coil may be breaking down. WIRE READ TO OHM RESISTANCE DVA (Connected) Black/Red (Chg Coil) White 95-134 110 V- or more Red/Wht Black 149-243 2 V or more Brown (Kill Circuit) Black -- 110 V or more Black/Yellow Black 0.16-0.24 90 V or more High Tension Lead #1 Coil Core 3.0 -4.4K (Without boot) -- Sparkplug Boot to sparkplug Sparkplug Boot Wire Side3.5-5.2K Mercury 4 Stroke Ignitions 1 Cylinder Engine 2006-UP with IGNITOR # 339-803559T07 (3AS060410M) 4/5/6 HP B Series By Tohatsu NO SPARK: 1. Disconnect the Brown kill wire. If fire returns, the kill circuit is shorted. Possibly the Stop switch or harness. 2. Verify the correct sparks plugs are installed. OEM recommends NGK DCPR6E, gapped at 0.035 in. 3. Check the stator resistance and DVA output as given below: WIRE READ TO OHM RESISTANCE DVA (Connected) Black/Red (Chg Coil) White 95-134 110 V- or more Red/Wht Black 49-243 2 V or more Brown (Kill Circuit) Black -- 110 V or more Black/Yellow Black 0.16-0.24 90 V or more High Tension Lead #1 Coil Core .0 -4.4K (Without boot) -- Sparkplug Boot to sparkplugSparkplug Boot Wire Side 3.5-5.2K ENGINE WILL NOT STOP RUNNING: Disconnect the Brown kill wire and short it to engine ground. If it stops running, replace the kill switch. If it continues to run, replace the ignition pack.