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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Timing of electronic ignition
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<blockquote data-quote="Matty" data-source="post: 101556" data-attributes="member: 1339"><p>Hi</p><p>I have had my Comet since 1956 and do around 3000 miles per year.</p><p>If one looks a the characteristics for the ATD, with the normal spring arrangement the unit virtually switches at about 2000 engine rpm from no auto advance to about 35 degrees !!</p><p>To make it easy to set for many years I just set my ignition with the points just breaking at TDC. with the ATD not advanced.</p><p>If I then jam the ATD fully advanced and check the advance, it is as near as I can measure to 35 degrees and the bike runs very well.</p><p>With my 8:1 compression ratio, I do not think the setting is very critical and am not trying to achieve optimum performance so my setting method is adequate and simple.</p></blockquote><p></p>
[QUOTE="Matty, post: 101556, member: 1339"] Hi I have had my Comet since 1956 and do around 3000 miles per year. If one looks a the characteristics for the ATD, with the normal spring arrangement the unit virtually switches at about 2000 engine rpm from no auto advance to about 35 degrees !! To make it easy to set for many years I just set my ignition with the points just breaking at TDC. with the ATD not advanced. If I then jam the ATD fully advanced and check the advance, it is as near as I can measure to 35 degrees and the bike runs very well. With my 8:1 compression ratio, I do not think the setting is very critical and am not trying to achieve optimum performance so my setting method is adequate and simple. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Timing of electronic ignition
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