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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Carb'
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<blockquote data-quote="cinquecento" data-source="post: 45241" data-attributes="member: 2979"><p>wel the base of the carb' body won't move and I'm reluctant to apply any more leaverage, this was having drenched area in hot water. I would comment that looking through the removed bottom banjo fitting there appears to be slight trace of rubbery red hermatite!! maybe one of the PO's had probs with the base coming loose.</p><p></p><p>Pushrod end profile is interesting point, all I checked on replacement of both was the length but I would think I would have noticed such a significant diffrence.</p><p></p><p>Anyhow, yesterday having checked p'rod adjustment and points she fired up. But again after running for a short while and then turning off the motor would not even give a hint of firing. I changed the plug for a colder one as I thought the motor seemed to run hot and the B6 plug had a very curious slight yellow tinge.</p><p></p><p> Most alarming was that the pilot jet was about 3.5 turns out. I'm suprised it would start, withoutchoke, and run for as long as it did on that setting. I adjusted to the 'base' setting I use or all Amal pilot jets, 1.5 turns out and fitted with a B7 the motor fired up and rean. I put it through several cycles and at lest now it seems to start on demand.</p><p></p><p>Today starts gradually lengthier shake down runs and will be looking out for fouled plug, pushrods going out of adjusment and checking it starts on demand when hot. If that all checks out I think I'll take the wee beasty a little further afield. fingers crossed.</p></blockquote><p></p>
[QUOTE="cinquecento, post: 45241, member: 2979"] wel the base of the carb' body won't move and I'm reluctant to apply any more leaverage, this was having drenched area in hot water. I would comment that looking through the removed bottom banjo fitting there appears to be slight trace of rubbery red hermatite!! maybe one of the PO's had probs with the base coming loose. Pushrod end profile is interesting point, all I checked on replacement of both was the length but I would think I would have noticed such a significant diffrence. Anyhow, yesterday having checked p'rod adjustment and points she fired up. But again after running for a short while and then turning off the motor would not even give a hint of firing. I changed the plug for a colder one as I thought the motor seemed to run hot and the B6 plug had a very curious slight yellow tinge. Most alarming was that the pilot jet was about 3.5 turns out. I'm suprised it would start, withoutchoke, and run for as long as it did on that setting. I adjusted to the 'base' setting I use or all Amal pilot jets, 1.5 turns out and fitted with a B7 the motor fired up and rean. I put it through several cycles and at lest now it seems to start on demand. Today starts gradually lengthier shake down runs and will be looking out for fouled plug, pushrods going out of adjusment and checking it starts on demand when hot. If that all checks out I think I'll take the wee beasty a little further afield. fingers crossed. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Carb'
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