CDI Electronics Outboard Ignition Troubleshooting Guide

163 Yamaha Troubleshooting Yamaha 150 HP (6 Cyl) 1984-1989 P150 HP (6 Cyl) 1986-1989 175 HP (6 Cyl) 1984-1989 200 HP (6 Cyl) 1984-1989 220 HP (6 Cyl) 1984-1986 V-6 Special 225 HP (6 Cyl) 1987-1989 Excel 6G5-85540-12-00 NO SPARK ON ANY CYLINDER: 1. Disconnect the White stop wire and retest. If the engine’s ignition now has spark, the stop circuit has a fault. Check the key switch, harness and shift switch. 2. Inspect and clean all engine and ignition ground connections. 3. Check the resistance and DVA output of the Stator and Trigger: Read from Read to OEM Reading CDI Reading DVA (connected) White/Red Trigger wire White/ Green Trigger wire 288-432 ohms - 2.5 V Minimum White/Black Trigger wire White/Blue Trigger wire 288-432 ohms - 2.5 V Minimum White/ Yellow Trigger wire White/Brown Trigger wire 288-432 ohms - 2.5 V Minimum Brown Stator wire Red Stator wire 840-1260 ohms 600-800 ohms 85 V Minimum Blue Stator wire Black/Red Stator wire 65-130 ohms 10-20 ohms 25 V Minimum 4. Check the cranking RPM. A cranking speed of less than 250-RPM will not allow the system to spark properly. This can be caused by a weak battery, dragging starter, bad battery cables or a mechanical problem inside the engine. NO SPARK OR INTERMITTENT SPARK ON ONE OR MORE CYLINDERS: 1. Check the resistance and DVA output of the Stator and Trigger: Read from Read to OEM Reading CDI Reading DVA (connected) White/ Red Trigger wire White/ Green Trigger wire 288-432 ohms 2.5 V Minimum White/Red Trigger wire Eng Ground Open Open 2.5 V Minimum White/ Green Trigger wire Eng Ground Open Open 2.5 V Minimum White/Black Trigger wire White/Blue Trigger wire 288-432 ohms - 2.5 V Minimum White/ Black Trigger wire Eng Ground Open Open 2.5 V Minimum White/ Blue Trigger wire Eng Ground Open Open 2.5 V Minimum White/ Yellow Trigger wire White/Brown Trigger wire 288-432 ohms - 2.5 V Minimum White/ Yellow Trigger wire Eng Ground Open Open 2.5 V Minimum White/Brown Trigger wire Eng Ground Open Open 2.5 V Minimum Brown Stator wire Red Stator wire 840-1260 ohms 600-800 ohms 85 V Minimum Brown Stator wire Eng Ground Open Open 85 V Minimum Red Stator wire Eng Ground Open Open 85 V Minimum Blue Stator wire Black/Red Stator wire 65-130 ohms 10-20 ohms 16 V Minimum Blue Stator wire Eng Ground Open Open 16 V Minimum Black/Red Stator wire Eng Ground Open Open 16 V Minimum