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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Mk1 concentrics ONLY:
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<blockquote data-quote="mr.hutch" data-source="post: 19262" data-attributes="member: 1424"><p>Hi Dereck,</p><p>just adding to Bill and Howards comments, I fitted a new pair of MK2's some 15 years back at the original rebuild, purchased from Hitchcocks, a firm to be recommended for such items. </p><p>There are some small changes however, like the pilot jet is replaced by a pilot bush of fixed size.</p><p>My set up has been all these years, after some early trial and error, Pilot 25, Needle 106, Main jet 320, needle top notch.</p><p>Currently the pilot screws are 1/2 to 3/4 open, remember screw in ,to richen the mixture. </p><p>Having got a sort of nice tick over on full retard, (I have manual advance and retard) I check the plug colour after a short run and adjust as necessary, which seems to do the trick. Hope this may help.</p><p> </p><p>Go carefully mr.hutch <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p> </p><p>Vincent outfit rides 101, BMW 44. </p><p>( they are my main transport )</p></blockquote><p></p>
[QUOTE="mr.hutch, post: 19262, member: 1424"] Hi Dereck, just adding to Bill and Howards comments, I fitted a new pair of MK2's some 15 years back at the original rebuild, purchased from Hitchcocks, a firm to be recommended for such items. There are some small changes however, like the pilot jet is replaced by a pilot bush of fixed size. My set up has been all these years, after some early trial and error, Pilot 25, Needle 106, Main jet 320, needle top notch. Currently the pilot screws are 1/2 to 3/4 open, remember screw in ,to richen the mixture. Having got a sort of nice tick over on full retard, (I have manual advance and retard) I check the plug colour after a short run and adjust as necessary, which seems to do the trick. Hope this may help. Go carefully mr.hutch :) Vincent outfit rides 101, BMW 44. ( they are my main transport ) [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Mk1 concentrics ONLY:
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