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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Magneto Rebuilder Suggestions
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<blockquote data-quote="James B" data-source="post: 110359" data-attributes="member: 3919"><p>Hi,</p><p>Ongoing fun and games with the comet. Has been a long hard slog to get to running right - but read on...</p><p></p><p>Got it running about a year ago now. Have clocked up a few hundred miles since then but it’s never been quite right</p><p></p><p>Fooled around with the carb for ages - got that sorted eventually by making an external indicator pipe so I could set the float level properly - it had been way off</p><p></p><p>Had the classic ‘dodgy capacitor’ symptoms from the mag. Did a load of research and found the right capacitor to replace it with (modern paper/polypropylene) and rebuilt myself.</p><p></p><p>Boy did that run better! Started easily, revved nicely, idled well. I thought I’d cracked it, but the danger of hubris...</p><p></p><p>Took it for a good long run today. About 20 miles in started misfiring, then died and would not restart.</p><p>An hour later it had cooled and it ran again.</p><p></p><p>I can only conclude that there is a heat related failure in the windings, since the capacitor is known good.</p><p></p><p>Rewinding an armature is definitely beyond me - does anyone have a personal recommendation for a mag rebuilder?</p><p>(I’ve searched here and found some leads - just wondered if anyone had a recent good experience they could share?)</p></blockquote><p></p>
[QUOTE="James B, post: 110359, member: 3919"] Hi, Ongoing fun and games with the comet. Has been a long hard slog to get to running right - but read on... Got it running about a year ago now. Have clocked up a few hundred miles since then but it’s never been quite right Fooled around with the carb for ages - got that sorted eventually by making an external indicator pipe so I could set the float level properly - it had been way off Had the classic ‘dodgy capacitor’ symptoms from the mag. Did a load of research and found the right capacitor to replace it with (modern paper/polypropylene) and rebuilt myself. Boy did that run better! Started easily, revved nicely, idled well. I thought I’d cracked it, but the danger of hubris... Took it for a good long run today. About 20 miles in started misfiring, then died and would not restart. An hour later it had cooled and it ran again. I can only conclude that there is a heat related failure in the windings, since the capacitor is known good. Rewinding an armature is definitely beyond me - does anyone have a personal recommendation for a mag rebuilder? (I’ve searched here and found some leads - just wondered if anyone had a recent good experience they could share?) [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Magneto Rebuilder Suggestions
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