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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Friendly chap with huge kickstart foot required!
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<blockquote data-quote="davidd" data-source="post: 32007" data-attributes="member: 1177"><p>Phil,</p><p></p><p>You mentioned the valve timing, which I assume was ok, but you did not mention the ignition timing. Timetraveller and Bill both have good suggestions. Did this bike run well when you bought it? Then it is more likely a fuel quality or mag issue. </p><p></p><p>If you have never seen the bike run then you have to start further back and check the carb, gas tank, mag, plugs, wires, points, etc, just to be sure. If you have a mate with car rollers then that is the ticket for something that you have never seen run. You can pull the plug and run it on the rollers to see if the oil is circulating and check the spark at the same time. With rollers you can also start the bike at full advance, i.e. with weak springs. Note: the ATD is more important and difficult to sort than most owners think. </p><p></p><p>If you get it started then you can do a leak down test once it is warm and learn a lot about the engine condition and get a base line as well.</p><p></p><p>If you describe your starting procedure you may solicit some additional comments.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 32007, member: 1177"] Phil, You mentioned the valve timing, which I assume was ok, but you did not mention the ignition timing. Timetraveller and Bill both have good suggestions. Did this bike run well when you bought it? Then it is more likely a fuel quality or mag issue. If you have never seen the bike run then you have to start further back and check the carb, gas tank, mag, plugs, wires, points, etc, just to be sure. If you have a mate with car rollers then that is the ticket for something that you have never seen run. You can pull the plug and run it on the rollers to see if the oil is circulating and check the spark at the same time. With rollers you can also start the bike at full advance, i.e. with weak springs. Note: the ATD is more important and difficult to sort than most owners think. If you get it started then you can do a leak down test once it is warm and learn a lot about the engine condition and get a base line as well. If you describe your starting procedure you may solicit some additional comments. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Friendly chap with huge kickstart foot required!
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