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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Electronic Ignition Vs B.T.H Magneto Replacement
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<blockquote data-quote="ClassicBiker" data-source="post: 169764" data-attributes="member: 1632"><p>Looks like an early version of the XR700 by Crane. I've had a Lucas Rita on my Shadow and currently have a BTH on it. The Rita worked fine, the only reason I swapped was it sucked up the electrons. Between it and the quartz halogen headlight the Alton could not keep up. Now they are independent of each other and the Alton has an easier time of it. The Comet is fitted with a Boyer Bransden system which seems to not seem so addicted to electrons. I'm considering getting a BTH for the Comet to separate the systems. I'm also considering refurbishing the K1F for this.</p><p>On my 60s and 70s Triumphs I have both Lucas Rita and Boyer Bransden, both have been reliable and I'm glad I swapped to them. But I think the capacity of the 3 phase, 180 watt RM24 alternators I've fitted play a large part in this as they provide their maximum power at fairly low rpm. There are posts on this forum point out that the speed of the dynamo/Alton arrange is less than engine speed. I'm not convinced the Alton provides enough as I live in a fairly built up area and low engine speeds are the order of the day. Incidentally I have a Crane system fitted to my MG B, and that takes a moment or two after startup for the charge light to go out. I think you would be better served by either getting a newer system that doesn't use a lot of current or a BTH.</p><p>Steven</p></blockquote><p></p>
[QUOTE="ClassicBiker, post: 169764, member: 1632"] Looks like an early version of the XR700 by Crane. I've had a Lucas Rita on my Shadow and currently have a BTH on it. The Rita worked fine, the only reason I swapped was it sucked up the electrons. Between it and the quartz halogen headlight the Alton could not keep up. Now they are independent of each other and the Alton has an easier time of it. The Comet is fitted with a Boyer Bransden system which seems to not seem so addicted to electrons. I'm considering getting a BTH for the Comet to separate the systems. I'm also considering refurbishing the K1F for this. On my 60s and 70s Triumphs I have both Lucas Rita and Boyer Bransden, both have been reliable and I'm glad I swapped to them. But I think the capacity of the 3 phase, 180 watt RM24 alternators I've fitted play a large part in this as they provide their maximum power at fairly low rpm. There are posts on this forum point out that the speed of the dynamo/Alton arrange is less than engine speed. I'm not convinced the Alton provides enough as I live in a fairly built up area and low engine speeds are the order of the day. Incidentally I have a Crane system fitted to my MG B, and that takes a moment or two after startup for the charge light to go out. I think you would be better served by either getting a newer system that doesn't use a lot of current or a BTH. Steven [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Electronic Ignition Vs B.T.H Magneto Replacement
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