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General Minitrail Talk
Tech Area
CT70 Lighting Coil Exposed
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<blockquote data-quote="allenp42" data-source="post: 183829" data-attributes="member: 8785"><p>Now that is nice! What I see in your video is what I was hoping to see on the Mitsu setup......by now.</p><p></p><p>I have double checked everything, and I am confident the lighting coil is wound wrong or is for another bike. I don't have your eagle eye, but the wire gauge is larger on the xrarespares Mitsu kit I have. Without a doubt, the turns ratio is off between the green & yellow windings. In other words, not enough voltage & current available on the green winding to bring the yellow voltage down. No way for the battery to to be "regulator" and balance out the circuit. It might work on a 3 volt battery but not a chance on a 6 volt. </p><p></p><p>What's a little unusual, I have a mitsu stator with a lighting coil that measures very close (scary close) to what I measured on the kit I have, It too has the same short comings. So there is bike somewhere in the wild that uses this type of lighting coil. </p><p></p><p>Again, not going to make any changes until I get the green light from the seller, but I'm pretty sure the mounting dimensions for the coil is the same as an OEM Mitsu. I can always pop in a Mitsu lighting coil and then take a ride around the block. </p><p></p><p>Once I get over the Mitsu hurdle, Hitachi is next on my bucket list. Personally, I suspect the timing advance curve had to be incorrect on the Hitachi H setups where people reported the kit did not work. The Hitachi coils are the same between a 3 speed and 4 speed and the mounting pads are the same height. It's the pad for the points that differs between the 2. See posts 13 & 14. My point is, if the 3 speed CDI kits works well, I see no reason why the H kit does not work equally as well...or better if the timing advance is correct.</p></blockquote><p></p>
[QUOTE="allenp42, post: 183829, member: 8785"] Now that is nice! What I see in your video is what I was hoping to see on the Mitsu setup......by now. I have double checked everything, and I am confident the lighting coil is wound wrong or is for another bike. I don't have your eagle eye, but the wire gauge is larger on the xrarespares Mitsu kit I have. Without a doubt, the turns ratio is off between the green & yellow windings. In other words, not enough voltage & current available on the green winding to bring the yellow voltage down. No way for the battery to to be "regulator" and balance out the circuit. It might work on a 3 volt battery but not a chance on a 6 volt. What's a little unusual, I have a mitsu stator with a lighting coil that measures very close (scary close) to what I measured on the kit I have, It too has the same short comings. So there is bike somewhere in the wild that uses this type of lighting coil. Again, not going to make any changes until I get the green light from the seller, but I'm pretty sure the mounting dimensions for the coil is the same as an OEM Mitsu. I can always pop in a Mitsu lighting coil and then take a ride around the block. Once I get over the Mitsu hurdle, Hitachi is next on my bucket list. Personally, I suspect the timing advance curve had to be incorrect on the Hitachi H setups where people reported the kit did not work. The Hitachi coils are the same between a 3 speed and 4 speed and the mounting pads are the same height. It's the pad for the points that differs between the 2. See posts 13 & 14. My point is, if the 3 speed CDI kits works well, I see no reason why the H kit does not work equally as well...or better if the timing advance is correct. [/QUOTE]
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