Differences

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--- techtalk:ref:carb01w [2025/02/14 19:02] – [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
@@ Line 8: / Line 8: @@
 <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>
+|
@@ Line 357: / Line 359: @@
 Using an aluminum oval backplate from the kits, 2 "Z" brackets (29122-85) were used on Ironheads. Brackets attach to the heads and then to 2 holes in the backing plate.
-|1974-1985 Sportster A/C Mounting Bracket Adapter Kit 29122-85 ((photo courtesy of Ebay seller, Robison Motorcycles [[ https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563 |Link to Ebay Store]]))  |
+|1974-1985 Sportster A/C Mounting Bracket Adapter Kit 29122-85 ((photo courtesy of Ebay seller, Robison Motorcycles [[ https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563 |Link to Ebay Store]]))    |
 |{{:techtalk:ref:carb:1974-1985_sportster_air_cleaner_mounting_bracket_adapter_kit_29122-85_by_robisonmotorcycles.jpg?direct&400|1974-1985_sportster_air_cleaner_mounting_bracket_adapter_kit_29122-85_by_robisonmotorcycles.jpg}}|
-|1986-1990 Sportster Air Cleaner Support Bracket (29258-86) ((photo courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]]))  |1986-1990 Sportster Air Cleaner Support Bracket (29193-86) ((photo courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]]))    |
+|1986-1990 Sportster Air Cleaner Support Bracket (29258-86) ((photo courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]]))    |1986-1990 Sportster Air Cleaner Support Bracket (29193-86) ((photo courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]]))    |
 |{{:techtalk:ref:carb:1986-1990_xl_carb_adapter_kit_29258-86_by_animalhouse2010_pic1.jpg?direct&400|1986-1990_xl_carb_adapter_kit_29258-86_by_animalhouse2010_pic1.jpg}}|{{:techtalk:ref:carb:1986-1990_sportster_air_cleaner_support_bracket_29193-86_by_animalhouse2010.jpg?direct&400|1986-1990_sportster_air_cleaner_support_bracket_29193-86_by_animalhouse2010.jpg}}|
+\\
 |Injection molded air cleaner adapter (27041-90) used on XLs & BTs. \\ Fits on the mouth of the carb to attach the backing plate.  |Air Cleaner Gasket 27044-90 ((photo courtesy of Ebay seller, 57harleyrider. [[https://www.ebay.com/str/57harleyrider|Link to Ebay Store]]))    |
 |{{:techtalk:ref:carb:air_cleaner_adapter_27041-90_by_robisonmotorcycles.jpg?direct&400|air_cleaner_adapter_27041-90_by_robisonmotorcycles.jpg}}|{{:techtalk:ref:carb:air_cleaner_gasket_27044-90_by_57harleyrider.jpg?direct&400|air_cleaner_gasket_27044-90_by_57harleyrider.jpg}}|
+\\
-|Tapered plastic carb spacer adapter (29275-88) ((photo courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]]))  |Nylon Hose Fitting (29190-85) for VOES on plastic spacer ((photo courtesy of Ebay seller, Robison Motorcycles [[ https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563 |Link to Ebay Store]]))    |
+|Tapered plastic carb spacer adapter (29275-88) ((photo courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]]))    |Nylon Hose Fitting (29190-85) for VOES on plastic spacer ((photo courtesy of Ebay seller, Robison Motorcycles [[ https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563 |Link to Ebay Store]]))    |
 |{{:techtalk:ref:carb:tapered_carburetor_adapter_29275-88_by_animalhouse2010.jpg?direct&400|tapered_carburetor_adapter_29275-88_by_animalhouse2010.jpg}}|{{:techtalk:ref:carb:nylon_hose_fitting_for_voes_29190-85_by_robisonmotorcycles.jpg?direct&400|nylon_hose_fitting_for_voes_29190-85_by_robisonmotorcycles.jpg}}|
+\\
-|Air Cleaner Venturi 29148-90 ((photo courtesy of Ebay seller, 57harleyrider. [[https://www.ebay.com/str/57harleyrider|Link to Ebay Store]]))  |
+HD calls this a "venturi" but that is a misnomer. Harley terminolgy is often confusing. 1984-1988 high flow air cleaners in these kits did not have a "venturi" since the K&N air filter was tapered to allow air flow to gather at the carb's mouth. The exception would have been the original 1984 fiter that was not tapered. 1989-up air cleaners use the "venturi" against the air cleaner side of the backing plate and the backing plate was redesigned to use an oval type non tapered K&N filter. The 1992 Genuine catalog and 1995 SE catalog calls it a radioused venturi that increases air flow and minimizes turbulence. The 1999 SE catalog calls this a radioused inlet ring. But throughout all, HD claims these systems have been bench tested and dyno'd and they never gave up on the idea of the "venturi or radioused inlet ring". In fact, later backing plates for hi flow CV carbs included a backing plate with a built in "venturi".
+|Air Cleaner Venturi 29148-90 ((photo courtesy of Ebay seller, 57harleyrider. [[https://www.ebay.com/str/57harleyrider|Link to Ebay Store]]))    |
 |{{:techtalk:ref:carb:air_cleaner_venturi_29148-90_by_57harleyrider.jpg?direct&400|air_cleaner_venturi_29148-90_by_57harleyrider.jpg}}|
+\\
 **Intake manifold**s:\\
-The stock 1986-1987 Sportster intake manifold is suggested if using the SE butterfly carb on 1988-later XLs. It is flanged to accept the flanged SE carb using a tapered plastic spacer and flange gaskets. An after market manifold, Ram Jett, was available also (now obsolete). The Ram Jett manifolds for Sportsters have an "S" stamped into a boss on the top center. The boss can be drilled and tapped for the VOES fitting (however doing so got rid of the designation letters).
+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 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)) \\
-|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:]]))    |
 |{{:techtalk:evo:carb:1986-1987_sportster_intake_manifold_pic2_by_stripped_down_cycles.jpg?direct&400|1986-1987_sportster_intake_manifold_pic2_by_stripped_down_cycles.jpg}}|
+\\
 |  Oval air cleaner backing plate (29069-90) used in A/C kits 29081-90 and 29082-90 without head breather holes (( photos courtesy of Ebay seller, 1960downunder, Link to Ebay Store https://www.ebay.com/str/1960downunder)) </sup>    ||

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