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Tech. Advice: Series 'A' 500cc/1000cc Bikes
1935 Series A 500 Burman BAP Gearbox questions
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<blockquote data-quote="ClassicBiker" data-source="post: 91424" data-attributes="member: 1632"><p>Got a question for all the Series A aficionados out there. I've been helping a local section member and club member with his Series A single. Prior to my involvement he had another refurbish his gearbox. Yesterday after finally getting new clutch springs I installed them and thought it a good idea to make sure I could select all the gears. I can find only two gears and I am not sure about what I think is neutral. My friend's confidence in the gearbox is less than absolute as the individual responsible for rebuilding it also supposedly rebuilt a motor for another bike he owns, but that turned out to be a fallacy. To be fair the re-builder has suffered a stroke a little while back. Now you know the history to my questions.</p><p>1) How many ratios does the BAP gearbox have. Looking at the Alternate part list he I believe it has four.</p><p>2) How do I time the shift mechanism? The fact that the neutral indicator on the shaft didn't even remotely line up with the indicator on the box is what made me want to check in the first place.</p><p>3) Are there any major pitfalls or issues I need be aware of? I'm having my friend pull the cover to see if there is anything obviously wrong. If he doesn't find anything glaringly obvious then I'm digging in.</p><p>4) Sources of information please? I haven't begun looking, but if anyone can point me in the right direction, it would be much appreciated.</p><p>Lest anyone be under the misapprehension that I am doing all this for totally altruistic reasons, I'm not. I've got a vested interest in this. Once this is up and running I've been promised to be able to take it for a ride around the block a couple of times and some photos with it. So the stakes are high here!</p><p>Thanks</p><p>Steven</p></blockquote><p></p>
[QUOTE="ClassicBiker, post: 91424, member: 1632"] Got a question for all the Series A aficionados out there. I've been helping a local section member and club member with his Series A single. Prior to my involvement he had another refurbish his gearbox. Yesterday after finally getting new clutch springs I installed them and thought it a good idea to make sure I could select all the gears. I can find only two gears and I am not sure about what I think is neutral. My friend's confidence in the gearbox is less than absolute as the individual responsible for rebuilding it also supposedly rebuilt a motor for another bike he owns, but that turned out to be a fallacy. To be fair the re-builder has suffered a stroke a little while back. Now you know the history to my questions. 1) How many ratios does the BAP gearbox have. Looking at the Alternate part list he I believe it has four. 2) How do I time the shift mechanism? The fact that the neutral indicator on the shaft didn't even remotely line up with the indicator on the box is what made me want to check in the first place. 3) Are there any major pitfalls or issues I need be aware of? I'm having my friend pull the cover to see if there is anything obviously wrong. If he doesn't find anything glaringly obvious then I'm digging in. 4) Sources of information please? I haven't begun looking, but if anyone can point me in the right direction, it would be much appreciated. Lest anyone be under the misapprehension that I am doing all this for totally altruistic reasons, I'm not. I've got a vested interest in this. Once this is up and running I've been promised to be able to take it for a ride around the block a couple of times and some photos with it. So the stakes are high here! Thanks Steven [/QUOTE]
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Tech. Advice: Series 'A' 500cc/1000cc Bikes
1935 Series A 500 Burman BAP Gearbox questions
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