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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
ATD Retaining Nut?
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<blockquote data-quote="cinquecento" data-source="post: 48453" data-attributes="member: 2979"><p>just to bring the thread to a proper conclusion should someone in the future do a search.</p><p></p><p>it would seem that setting the points and locating the ATD on taper can be a fickle operation that needs to be checked and attempted several times.</p><p></p><p>This is not helped by the fact that it became apparent that PO's had b*asterdised the ATD in more than one respect, requiring oe back plate and rivets to replace nut and bolt lash up that was thought to be imposing localised load on the fibre pinion that could possibly lead to an early catastrophic failiure.</p><p></p><p>Ears on the ATD had been bent, were missing and had random material at the corners removed; how the machine ever fired when I bought it is a suprise. I have built these up with weld and to date firing up the motor seems to be possible on a regular cycle although a high speed run will be necessaary to confirm full advance is acceptable at 35 deg and if any pinking does occur it can be 'managed' or re timed.</p><p></p><p>The routing of the HT cable was not seen as a must do, however now I am able to pay attention to the recommendations for the pick up orientation and cable routing. This willbe made more feasible as some nice silicon flxible cable is on order. </p><p></p><p>Last but least , thanks for a great resource, particularly MartynG's posts which have given me plenty to cogitate on. Wishing a happy and peaceful 2014 to all.</p></blockquote><p></p>
[QUOTE="cinquecento, post: 48453, member: 2979"] just to bring the thread to a proper conclusion should someone in the future do a search. it would seem that setting the points and locating the ATD on taper can be a fickle operation that needs to be checked and attempted several times. This is not helped by the fact that it became apparent that PO's had b*asterdised the ATD in more than one respect, requiring oe back plate and rivets to replace nut and bolt lash up that was thought to be imposing localised load on the fibre pinion that could possibly lead to an early catastrophic failiure. Ears on the ATD had been bent, were missing and had random material at the corners removed; how the machine ever fired when I bought it is a suprise. I have built these up with weld and to date firing up the motor seems to be possible on a regular cycle although a high speed run will be necessaary to confirm full advance is acceptable at 35 deg and if any pinking does occur it can be 'managed' or re timed. The routing of the HT cable was not seen as a must do, however now I am able to pay attention to the recommendations for the pick up orientation and cable routing. This willbe made more feasible as some nice silicon flxible cable is on order. Last but least , thanks for a great resource, particularly MartynG's posts which have given me plenty to cogitate on. Wishing a happy and peaceful 2014 to all. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
ATD Retaining Nut?
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