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General Minitrail Talk
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CT70 runs, won't idle?
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<blockquote data-quote="mk2davis" data-source="post: 170586" data-attributes="member: 10329"><p>All good thoughts. Thank you guys for a wealth of ideas and suggestions. Both of these are 6v 3 speeds.</p><p></p><p>I am no electrical engineer, but I took a class, many years ago. With the plug grounded on the motor, no spark. If I give that "circuit" more resistance by an 1/8" of air between the plug and the engine, I get spark. Now I am skeptical, because as CJ noted, coils rarely fail. The fact that I do get spark once the circuit is given appropriate resistance, I am leaning towards the stator coils being okay. I did get shocked when holding the bare plug while kicking it over. I was desperate for an unforgettable confirmation, and I got one!</p><p></p><p>Allen, I'm leaning towards a bad ignition coil. My readings were with the resistor style plug, so it should be around 15K, and I am 1/3 off of that. Tomorrow I'll pull the tank and swap those out and see what happens.</p><p></p><p>Points seem to be functioning as intended, 0.4 ohms closed, 1.6 ohms open, which is consistent with what I've seen in the past on other bikes. Plug was brand spanking new. Condenser is not a suspect right now. I haven't seen a reliable way to test that part, if someone does know how that would be appreciated.</p></blockquote><p></p>
[QUOTE="mk2davis, post: 170586, member: 10329"] All good thoughts. Thank you guys for a wealth of ideas and suggestions. Both of these are 6v 3 speeds. I am no electrical engineer, but I took a class, many years ago. With the plug grounded on the motor, no spark. If I give that "circuit" more resistance by an 1/8" of air between the plug and the engine, I get spark. Now I am skeptical, because as CJ noted, coils rarely fail. The fact that I do get spark once the circuit is given appropriate resistance, I am leaning towards the stator coils being okay. I did get shocked when holding the bare plug while kicking it over. I was desperate for an unforgettable confirmation, and I got one! Allen, I'm leaning towards a bad ignition coil. My readings were with the resistor style plug, so it should be around 15K, and I am 1/3 off of that. Tomorrow I'll pull the tank and swap those out and see what happens. Points seem to be functioning as intended, 0.4 ohms closed, 1.6 ohms open, which is consistent with what I've seen in the past on other bikes. Plug was brand spanking new. Condenser is not a suspect right now. I haven't seen a reliable way to test that part, if someone does know how that would be appreciated. [/QUOTE]
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CT70 runs, won't idle?
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