Question about Yamaha Motorcycles
I have a 2004 350 Yamaha Warrior that turns over, but has no spark. I went through all electrical connections, cleaning all Molex connectors w/CRC electrical cleaner and blew them out w/an electronic duster(compressed gas) then used dielectric grease. All connections tight w/no loose wires. After doing that w/a new plug, same thing. Turns over like a dream, but still has no spark. I suspect one of three things has failed, ignition coil, stator coil or the CDI control. I believe you can ohm these three parts out, not sure what the resistance specs are for any of these three parts? I would like to know if I can troubleshoot these three parts this way? Any help in pointing me in the right direction would be much appreciated, thank you.
AT ANY ELECTRONIC SPARK PRODUCING DEVICE:
1. A SIMPLE CONTINUITY TEST LIGHT WILL TELL YOU IF CURRENT CAN PASS THRU THE CDI, IGNITION, ETC..
Posted on Jul 26, 2013
Testimonial: "Thanks for the advice Jeff, I don't have a continuity test light. However my volt meter can show me resistance, just not sure where to put my Leeds from my tester on the stator or CDI because there 4 or 6 conductors goin to the Molex connector from the stator and I believe there are 8 conductor taps on the CDI. If I buy a continuity test light can I test each pin or tap on the Molex connectors individually? Thanks."
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Posted on Jan 02, 2017
I haven't worked on that bike in 30 years, but as I recall, the black wire goes to the points. The coil grounds via the mounting bolts.
Posted on Jun 20, 2010
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