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By Adrian
#74830
+ 1 to keeping the magneto portion of the magdyno as a working magneto, though having it serviced would be an excellent idea. There will be people here who can recommend someone reliable.



On the dynamo front, again I'd recommend having it repaired, then you can either keep it for 6v lights or use a modern solid state voltage regulator to convert to 12V.



I'm not sure about converting dynamos into alternators, but what you CAN get is a range of alternators designed as a direct replacement for the Lucas motorcycle dynamos, made by Alton in France. Over here they can be bought from BT-H, the electronic magneto suppliers. Not cheap, though.



http://www.bt-h.biz/alton-generators-7-c.asp



The nuclear option would be a complete magdyno replacement using a BT-H for the mag partion:



http://www.bt-h.biz/md1r--magdyno-singl ... r-19-p.asp



as well as an Alton generator on top.



Once you have added up the price of those two, the cost of getting your existing magdyno overhauled will suddenly look a whole lot less painful on the wallet...



A.

By Marko
#74831
Not that I have anything against magnetos (I do have a k2f on my Connie which works well) but I did fit a Thorspark on model G. My bike still has the dynamo (60w) fitted although I did fit a 6v solid state regulator. Anyway when I was fitting the thorspark and playing around with my home made wiring loom I made a small cock up and connected the feed for the thorspark directly to a terminal on the ammeter... get the picture so far?..... I put an on/off switch (for ignition purposes, so I thought) near the battery... I started the engine (2nd kick) and there it was ticking away, happy as a bunny I was! Went to switch it off and it just kept ticking away! It was running on the output from the dynamo! Couldn't stop the damned thing! (I dispensed with the valve lifter, if I can kickstartt a 750 triumph who needs a valve lifter? well, those were my thoughts)I eventually stopped it by deliberately stalling the bike - I rode into the garage wall. Conclusion: the dynamos on these bikes are more than up to the job of powering a Thorspark & provide lighting; the model G Is a brilliant little bike (underrated!).... Paul Henshaw aka the Bullet Whisperer is currently doing another one of his ASBOs - only this time its the humble model G... i'm watching that with interest :)
By papasmurf
#74833
Alan R correct it should be Demon Tweeks . (I am having some health problems at the moment, but thankfully I don't live anywhere near Salibury.)
By Mark M
#74834
Demon Tweeks do alternator replacements for dynamos to fit cars but I can't find anything on their site for bikes. The Alton units are lovely bits of kit but eye-wateringly expensive! I just hope the dynamo I picked up from a club member for the Ebay Bullet works...

REgards, Mark

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