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| techtalk:ref:carb01w [2025/02/15 03:50] – [Individual Air Cleaner Parts and Pics] hippysmack | techtalk:ref:carb01w [2025/03/18 13:52] (current) – [Basic Keihin BD (Screaming Eagle or Flowmaster) Butterfly Carb Information] hippysmack |
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| <wrap em>It's shown everywhere on the drag racing circuit that racers are winning with Screamin Eagle carburetors. ((HD Dealer News, August 1989)) </wrap> | <wrap em>It's shown everywhere on the drag racing circuit that racers are winning with Screamin Eagle carburetors. ((HD Dealer News, August 1989)) </wrap> |
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| The stock 1986-1987 Sportster intake manifold is suggested by HD if using the SE butterfly carb on 1988-later XLs. It is flanged at each head connection and also at the carb mount to accept the flanged SE carb using a tapered plastic spacer and flange gaskets or the Mikuni flange to spigot adapter. An after market manifold, Ram Jett, was available also (now obsolete). \\ | The stock 1986-1987 Sportster intake manifold is suggested by HD if using the SE butterfly carb on 1988-later XLs. It is flanged at each head connection and also at the carb mount to accept the flanged SE carb using a tapered plastic spacer and flange gaskets or the Mikuni flange to spigot adapter. An after market manifold, Ram Jett, was available also (now obsolete). \\ |
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| The Ram Jett , CAS part#(DS289215) manifolds are also flanged on all three sides and have an "S" stamped into a boss on the top center for use on Sportsters. The boss can be drilled and tapped for the VOES fitting (however doing so got rid of the designation letters). One-piece, heat-treated aluminum manifolds accommodate expansion, contraction and cylinder vibration. For stock XL 883, 1100, 1200 XL Evolution, flange-type mount (must use 36-38mm spigot adapter flange (MVM36-200), 5/8" shorter to compensate for spigot adapter when using OEM CV carb on 88-00 models; carb opening in manifold 1-5/8" (40mm) which matches the 40mm SE butterfly carbs. ((http://cas4.com/Carburetors-Intakes/carbs-intakes-manifolds-kits-seals-hardware.html)) Used Ram Jetts usually lack the bolts but you can take Allen head bolts and reduce their OD slightly (chuck in drill then hold against a grinder, or use a lathe) to clear the casting. ((Farmall from Harley Tech Forum https://harleytechtalk.com/htt/index.php?topic=108599.0)) James Gaskets sells a gasket kit (JGI-27002-89-R) with the 2 head flange paper gaskets but it has a spigot mount rubber for the carb mount. \\ | The Ram Jett , CAS part#(DS289215) manifolds are also flanged on all three sides and have an "S" stamped into a boss on the top center for use on Sportsters. The boss can be drilled and tapped for the VOES fitting (however doing so got rid of the designation letters). The "S" versions are considerably narrower than big twin intakes. One-piece, heat-treated aluminum manifolds accommodate expansion, contraction and cylinder vibration. For stock XL 883, 1100, 1200 XL Evolution, flange-type mount (must use 36-38mm spigot adapter flange (MVM36-200), 5/8" shorter to compensate for spigot adapter when using OEM CV carb on 88-00 models; carb opening in manifold 1-5/8" (40mm) which matches the 40mm SE butterfly carbs. ((http://cas4.com/Carburetors-Intakes/carbs-intakes-manifolds-kits-seals-hardware.html)) These intakes came with 12 point mounting bolts instead of the stock allen head bolts. Used Ram Jetts usually lack the bolts but you can take Allen head bolts and reduce their OD slightly (chuck in drill then hold against a grinder, or use a lathe) to clear the casting. ((Farmall from Harley Tech Forum https://harleytechtalk.com/htt/index.php?topic=108599.0)) James Gaskets sells a gasket kit (JGI-27002-89-R) with the 2 head flange paper gaskets but it has a spigot mount rubber for the carb mount. Or, the gaskets are easy to cut from Fel-Pro gray paper (from any auto store). ((farmall of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/201038-1991-manifold-bolt-trivia)) \\ |
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| |1986-1987 Sportster OEM intake manifold (27004-86) (( photos courtesy of Stripped Down Cycles [[https://www.ebay.com/str/strippeddowncycles?_trksid=p2047675.m3561.l2563|Link to Ebay Store:]])) | | |1986-1987 Sportster OEM intake manifold (27004-86) (( photos courtesy of Stripped Down Cycles [[https://www.ebay.com/str/strippeddowncycles?_trksid=p2047675.m3561.l2563|Link to Ebay Store:]])) | |
