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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Has Anyone Ever Bench Tested a B-TH Electronic Mag With Coils
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<blockquote data-quote="oexing" data-source="post: 173184" data-attributes="member: 1493"><p>Fat sparks - super high voltage sparks - I´d hate sparks that appear weak judging from the sound they make. A healthy loud crack is what I´d call high energy and if this is not so - well, thanks, electronic or not.</p><p> I remember when CDI sets came into fashion not all engines were happy with them. Seemed in engines with less perfectly spread mixture in cylinder the very short impulse CDI spark could not find a good mixture at all times for a nice run. With mag and coil-capacitor-breaker or battery-coil ignition the coil-capacitor combination will show a strong high voltage spike PLUS a length of smaller spikes of spark burn time on an oscilloscope. So this helps for igniting mixture a lot.</p><p> Short spark CDI ignition effect can be helped by setting the plug gap to more than common numbers but this seems to be discouraged by some manufacturers for easing life of electronics - ???</p><p> So better get a nice distributor on the Vincent with coil ignition - when you got decent power from Alton and all.</p><p> For a challenge - and to be different - I got some Vertex/Ronco magnetos for their extra fat sparks, see Youtube link below, finger spun !</p><p> But that mod is a big job to go on Vincents , so no real proposition for most here.</p><p></p><p> Vic</p><p><a href="https://www.youtube.com/watch?v=-39h3P-ayjo" target="_blank">Ronco mag</a></p><p></p><p>[ATTACH=full]59686[/ATTACH]</p><p></p><p>[ATTACH=full]59687[/ATTACH]</p></blockquote><p></p>
[QUOTE="oexing, post: 173184, member: 1493"] Fat sparks - super high voltage sparks - I´d hate sparks that appear weak judging from the sound they make. A healthy loud crack is what I´d call high energy and if this is not so - well, thanks, electronic or not. I remember when CDI sets came into fashion not all engines were happy with them. Seemed in engines with less perfectly spread mixture in cylinder the very short impulse CDI spark could not find a good mixture at all times for a nice run. With mag and coil-capacitor-breaker or battery-coil ignition the coil-capacitor combination will show a strong high voltage spike PLUS a length of smaller spikes of spark burn time on an oscilloscope. So this helps for igniting mixture a lot. Short spark CDI ignition effect can be helped by setting the plug gap to more than common numbers but this seems to be discouraged by some manufacturers for easing life of electronics - ??? So better get a nice distributor on the Vincent with coil ignition - when you got decent power from Alton and all. For a challenge - and to be different - I got some Vertex/Ronco magnetos for their extra fat sparks, see Youtube link below, finger spun ! But that mod is a big job to go on Vincents , so no real proposition for most here. Vic [URL='https://www.youtube.com/watch?v=-39h3P-ayjo']Ronco mag[/URL] [ATTACH type="full" alt="P1080029.JPG"]59686[/ATTACH] [ATTACH type="full" alt="P1090040.JPG"]59687[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Has Anyone Ever Bench Tested a B-TH Electronic Mag With Coils
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