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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Series D 6 to 12 Volt conversion
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<blockquote data-quote="Robert Watson" data-source="post: 3090" data-attributes="member: 38"><p>In the past I tried to run an E3L Lucas 6V on 12V and time and again it failed, eventually spitting out all the solder from between the segments on the commutator. I concluded that although this works in the short term and short usage, whenever it gets used for a lengthy period disaster will occur. With me it was every time I crossed into the closest US State (Washington) which requires daytime use of headlights on a motorcycle and the police pull you over and give you a stern lecture if you don't have it on. Not ever wanting to come under such scrutiny if it can be helped, I find it best to run the headlight, and in early days that meant after about 3-4 hours, a fried generator. My recent Comet aquisition had exactly this same setup, and I was assured it worked well, but had VERY limited use. I checked the generator and it's free running output was something like 12.8 V, perfect if regulated back to 6V but not good to try and regulate at 13.6 V to charge a 12V battery. A 12V generator, like a Chinamo puts out about 25V if left uncontrolled, so when running at 13.6 V works well. I'm no expert at anything - as many will attest - but having let the smoke out of quite a few wires in my time, I prefer using stuff meant for the job. The Comet is now all converted back to 6V!</p><p></p><p>Robert</p></blockquote><p></p>
[QUOTE="Robert Watson, post: 3090, member: 38"] In the past I tried to run an E3L Lucas 6V on 12V and time and again it failed, eventually spitting out all the solder from between the segments on the commutator. I concluded that although this works in the short term and short usage, whenever it gets used for a lengthy period disaster will occur. With me it was every time I crossed into the closest US State (Washington) which requires daytime use of headlights on a motorcycle and the police pull you over and give you a stern lecture if you don't have it on. Not ever wanting to come under such scrutiny if it can be helped, I find it best to run the headlight, and in early days that meant after about 3-4 hours, a fried generator. My recent Comet aquisition had exactly this same setup, and I was assured it worked well, but had VERY limited use. I checked the generator and it's free running output was something like 12.8 V, perfect if regulated back to 6V but not good to try and regulate at 13.6 V to charge a 12V battery. A 12V generator, like a Chinamo puts out about 25V if left uncontrolled, so when running at 13.6 V works well. I'm no expert at anything - as many will attest - but having let the smoke out of quite a few wires in my time, I prefer using stuff meant for the job. The Comet is now all converted back to 6V! Robert [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Series D 6 to 12 Volt conversion
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