Technical Assistance Yamato 302 - Ignition testing information These readings are taken from known good units. These are not exact specifications, your readings may vary some.   Pick up coils green to red wires 195.4-202.7 ohms       Primary coils ground to blue wire 2.6-3.2 ohms       Secondary coils black to white wires 1.9-2.1 ohms       Transistor unit ground to green wire 1.69-1.709 m ohms   ground to black wire open   ground to white wire 1.454-1.566 m ohms   ground to red wire 1.533-2.088 m ohms   ground to blue wire open   black to green wires open   black to white wires open   black to red wires open   black to blue wires closed-0.2 ohms   blue to green wires open   blue to white wires open   blue to red wires open   red to green wires 3.84-4.44 m ohms   red to white wires 3.36-4.23 m ohms   white to green wires 3.58-4.2 m ohms Site Designed By: Ryan Johnson 2007 Maintained By: RPM Marine Comments: E-Mail Webmaster