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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Mikuni carb size
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<blockquote data-quote="bmetcalf" data-source="post: 16804" data-attributes="member: 792"><p>I saved this from somewhere, but don't know who wrote it:</p><p>I have 30mm round slide Mikuni Vm's on my Rapide.("PIP", CRap/D</p><p>motor)</p><p>After some fiddling, they work a treat, set as follows;</p><p></p><p>Vm30ss As Supplied Now</p><p></p><p>Main Jet #220 Now #195</p><p></p><p>Pilot Jet #30 Now #35 (mixture screw 1+1/4 turn out.)</p><p></p><p>Needle Jet 159P-8 Same</p><p></p><p>J/Needle 6DP17 (centered) Same</p><p></p><p>Slide #2.5 Same</p><p></p><p>Air jet BS30/97 2.0 Same</p><p></p><p>(2) #002-351, Cable type starter system, conversion kits.</p><p></p><p>(2) K+N Air Filters</p><p></p><p>"PIP" is capable of idling cleanly and continuously at 400 rpm, if so</p><p>desired. (That just drives the Harley guys nuts)</p><p></p><p>Motor pulls cleanly from idle to 100+?</p><p>(Who believes our Smiths anyway!)</p><p></p><p>I think 32mm may be a little big for a stock Rapide. I think I'm</p><p>pushing it a little with 30's. Your pilot jetting seem very rich</p><p>to me. Are you finding if difficult to get your idle mixture lean</p><p>enough?</p><p></p><p>Sudco Mikuni has a very complete tuning manual available, well worth</p><p>the price.</p><p><a href="http://www.sudco.com/mikuni.html#manual" target="_blank">http://www.sudco.com/mikuni.html#manual</a></p><p></p><p>It might have been on jtan. I also searched here and found Robert Watson's flatslide 34mm settings, but that's all after a superficial look. You may find more with a closer look.</p></blockquote><p></p>
[QUOTE="bmetcalf, post: 16804, member: 792"] I saved this from somewhere, but don't know who wrote it: I have 30mm round slide Mikuni Vm's on my Rapide.("PIP", CRap/D motor) After some fiddling, they work a treat, set as follows; Vm30ss As Supplied Now Main Jet #220 Now #195 Pilot Jet #30 Now #35 (mixture screw 1+1/4 turn out.) Needle Jet 159P-8 Same J/Needle 6DP17 (centered) Same Slide #2.5 Same Air jet BS30/97 2.0 Same (2) #002-351, Cable type starter system, conversion kits. (2) K+N Air Filters "PIP" is capable of idling cleanly and continuously at 400 rpm, if so desired. (That just drives the Harley guys nuts) Motor pulls cleanly from idle to 100+? (Who believes our Smiths anyway!) I think 32mm may be a little big for a stock Rapide. I think I'm pushing it a little with 30's. Your pilot jetting seem very rich to me. Are you finding if difficult to get your idle mixture lean enough? Sudco Mikuni has a very complete tuning manual available, well worth the price. [url]http://www.sudco.com/mikuni.html#manual[/url] It might have been on jtan. I also searched here and found Robert Watson's flatslide 34mm settings, but that's all after a superficial look. You may find more with a closer look. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Mikuni carb size
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