Differences

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--- techtalk:ref:carb01 [2017/12/27 05:43]
ixl2relax ↷ Links adapted because of a move operation
+++ techtalk:ref:carb01 [2019/09/08 20:57]
hippysmack [Aftermarket Carburetors]
@@ Line 42: / Line 42: @@
 |27155-70R| (XR) (27823-66R)|
 |**Bendix / Zenith I6P12 (1972-Early 1976)**||
-|27155-72 ((http://xlforum.net/vbportal/forums/showthread.php?t=1981918))|1972-|
+|27155-72 ((http://xlforum.net/forums/showthread.php?t=1981918))|1972-|
-|27155-72A ((http://xlforum.net/vbportal/forums/showthread.php?t=1981918))|1972-Early 1975|
+|27155-72A ((http://xlforum.net/forums/showthread.php?t=1981918))|1972-Early 1975|
 |27155-72B(( HD Sportster Parts Catalog (99451-78B) ))|1975-Early 1976|
 |**Mikuni** (**XR-750 Racing Engines Only**)||
-|VM-36-1 \\ VM-36-4 \\ VM36/39|1972-1980 XR-750 / 36 mm with a round slide ((http://xlforum.net/vbportal/forums/showthread.php?t=2006195&page=3))((1972-2003 HD XR-750 Service Manual pg 39))|
+|VM-36-1 \\ VM-36-4 \\ VM36/39|1972-1980 XR-750 / 36 mm with a round slide ((http://xlforum.net/forums/showthread.php?t=2006195&page=3))((1972-2003 HD XR-750 Service Manual pg 39))|
 |TM38-85 (47mm spigot dia.) \\ TM38-86 (43mm spigot dia.) \\ TM38-85 (47mm spigot dia.) \\ TM38-86 (43mm spigot dia.)|1989-2003 XR-750 / 38 mm with a flat slide((1972-2003 HD XR-750 Service Manual pg 39))|
 |**Keihin** butterfly (non-CV)(Late 1976-1987)||
@@ Line 169: / Line 169: @@
 ====== PERFORMANCE OPTIONS ======
-===== Keihin BD =====
+===== Keihin BD (Screaming Eagle 40mm Kit) =====
   * Used in the Screaming Eagle Package line from HD as an Evolution XLH HI-FLO Carburetor & Air Cleaner.
   * Adjustable Accelerator Pump stroke
   * Incorporated a special intake manifold to carb spacer that had to be drilled and tapped (1/4 x 28) in the side for included Voes connection adapter
   * Required a 1987 replacement style intake manifold for 1988 and up models
-  * Required possible grinding of the right rear corner of the front cylinder head, due to interference with the carburetor throttle pulley and cable guides, for proper clearance  ((http://xlforum.net/vbportal/forums/showthread.php?t=132922))
+  * Required possible grinding of the right rear corner of the front cylinder head, due to interference with the carburetor throttle pulley and cable guides, for proper clearance  ((http://xlforum.net/forums/showthread.php?t=132922))
 ^Carb #27001-88^^^^^^
@@ Line 189: / Line 190: @@
 |27895-87 |70 |
 |27897-78 |72 |
- ((http://xlforum.net/vbportal/forums/showthread.php?t=132922))
+ ((http://xlforum.net/forums/showthread.php?t=132922))
  *in carburetor
-----
+==== Accelerator Pump ====
-\\
+  * **Accelerator pump rod length**: A number of Screaming Eagle carb kits (91731-85A), packaged during March of 1988 (3/88 date code), contained carburetors with accelerator pump rods that were too short. The incorrect pump rods were only 2.35" long, end to end, and completely disabled the accelerator pump and caused the engine to stumble upon fast acceleration. The correct length pump rod (27374-88) is 2.55". ((HD Service Bulletin #M-961 dated April 8, 1988))
+  * Dealers were to check their parts stock and replace any pump rods that measured short and also check the pump rod length on any motorcycles that exhibited a stumble upon acceleration.
-===== Mikuni HSR 42/45/48 Carburetor =====
-Mikuni Carb site [[http://www.mikuni.com/fs-carburetor.html]]
-|Model|Rebuild Kit - \\ Mikuni Part #|Std. Main Jet Size|Std. Jet Needle size|Optional Jet Needles|Std. Accel Pump Nozzle|Std. Accel Pump Nozzle|Optional Lean Accel Pump Nozzle|
-|42 \\ 45 \\ 48|KHS-016 \\ KHS-016 \\ KHS-031|160 \\ 175 \\ 190|97 \\ 97 \\ 97|95, 96, 98 \\ all models \\ (95 rich - 98 lean)|70 \\ all __Carb__ Models|60 \\ for __Sportster__ Models|50|
-(from the Mikuni HSR 42-45-48 exploded view diagram [[http://www.mikuni.com/pdf/tm42xview121801.pdf]])
+----
+\\
-  * When tuning, it's best to go by the Mikuni manual.Take your time, follow the Mikuni tuning guide carefully (including the throttle position tape) and you will get her close. If she is not as smooth at cruise, you may need to drop the needle back down and then switch it out for a different needle maybe. All needles are the same length and have the same taper, just different diameter of the straight portion. 96 is one richer than a 97. They only make a 95, 96, 97 and 98 needle. 165 main is probably close. But do the wide open throttle test in the manual to verify. ((Shu from the XLFORUM http://xlforum.net/vbportal/forums/showthread.php?t=14060&page=3))
-  * HSR 42/ 45/ 48 Tuning Manual [[http://xlforum.net/misc/hsr_tuningmanual_021003.pdf]]
-  * Also you can click on the discussion tab above or click here [[talk:techtalk:ref:carb01#mikuni_hsr|Tuning the Mikuni HSR]] for more information from the XLFORUM on tuning the Mikuni.
@@ Line 217: / Line 216: @@
 |{{techtalk:ref:carb:breather_options_for_mikuni_by_c53.jpg?direct&300|}}|{{techtalk:ref:carb:breather_options_1_for_mikuni_by_jordan1200.jpg?direct&300|}}|{{techtalk:ref:carb:breather_options_2_for_mikuni_by_jordan1200.jpg?direct&300|}}|
-|((photo by c53 of the XLFORUM http://xlforum.net/vbportal/forums/showthread.php?t=14060&page=16))|The horseshoe pipe system over the top of the carb allows for easy access to the mixture screw.((photos by jordan1200 of the XLFORUM http://xlforum.net/vbportal/forums/showthread.php?t=14060&page=16))||
+|((photo by c53 of the XLFORUM http://xlforum.net/forums/showthread.php?t=14060&page=16))|The horseshoe pipe system over the top of the carb allows for easy access to the mixture screw.((photos by jordan1200 of the XLFORUM http://xlforum.net/forums/showthread.php?t=14060&page=16))||
 ====== Aftermarket Carburetors ======
+====== Mikuni Aftermarket Carbs and Upgrades ======
+===== Sub Documents =====
+**HSR Series**: \\
+  * [[techtalk:ref:carb02b|Basic Mikuni HSR Information]]
+  * [[techtalk:ref:carb02a|Choke Relocation on a Mikuni HSR]]
+  * [[techtalk:ref:carb02e|Rebuilding a Mikuni HSR42]]
+**VM Series**: \\
+  * [[techtalk:ref:carb02h|Basic Mikuni VM Information]]
+  * [[techtalk:ref:carb02j|Function and Tuning of a Mikuni VM-38-9]]
+  * [[techtalk:ref:carb02k|Mounting a Mikuni VM-38]]
+**HS-40**: \\
+  * [[techtalk:ref:carb02n|Basic Mikuni HS-40 Information]]
+----
+Other than exact replacement OEM carburetors, all Mikuni aftermarket carburetors and tuning components are sold "As Is" for off road / racing use only. ((http://www.mikunipower.com/VM01.htm)) \\
+They are not intended or approved for use on vehicles operated on public roads or in locations where applicable engine tampering and anti-pollution laws apply. \\
+There are plenty of Mikuni and Keihin carburetors in the market that are not authentic. ((http://www.sudco.com/genuine_vs_fake_carburetors.html)) \\
+They're not safe to use and will cause many problems to your bike. \\
+If you're not sure if it's a genuine carburetor, the Sudco International site has a web page with pics of genuine and fake carbs. \\
+Follow [[http://www.sudco.com/genuine_vs_fake_carburetors.html|this link]] or you can call them directly to verify a seller. ((Sudco International Corp. 2410 S. Sequoia Drive Compton, CA 90220 Tel.(310) 637-8330 • Fax (310) 637-8331)) \\
+Also, below the series models below are notes from Sudco on fake vs genuine carbs. \\
+====== Mikuni Manuals and Other Helpful Links ======
+  * [[http://www.mikunipower.com/HSR01.htm|Mikuni website (HSR page)]]
+  * [[http://www.mikuni.com/fs-carburetor.html|HSR Installation Guide]]
+  * [[http://www.mikuni.com/fs-performance_guide.html|Performance Guide]] includes:
+    * Air Cleaner Basics, Exhaust System Basics, Cam Basics and Ignition Basics
+  * [[http://www.mikunipower.com/Manuals/HSR_SportsterBuellInstallation.pdf|Sportster / Buell Installation Instructions PDF]]
+  * [[http://www.mikunipower.com/Manuals/HSR42-48_Manual.pdf|HSR42/45/48 Tuning Manual PDF]]
+  * [[http://www.mikuni.com/pdf/how_to_choke_cable.pdf|HSR Choke Cable Installation Tips]]
+  * [[http://www.mikunipower.com/Manuals/HS40_Manual.pdf|HS40 Tuning Manual & Parts List PDF]]
+  * [[http://www.mikunipower.com/Manuals/HS40_Manual.pdf|HS40 Tuning Manual PDF]]
+  * [[http://www.mikunipower.com/VM01.htm|Mikuni website (VM page)]]
+  * [[http://www.mikunipower.com/Manuals/VM_Manual.pdf|VM "Round Slide" Tuning Manual]]
+  * [[http://www.mikunipower.com/Manuals/VM26_Rebuild_Kit.pdf| Rebuild Kit VM26-606 PDF]]
+  * [[http://www.mikunipower.com/Manuals/HSR_PATInstallation.pdf|  PAT Upgrade Kit Installation Instructions PDF]]
+  * [[https://www.jetsrus.com/a_jets_by_carburetor_type/jets_mikuni_HSR_series.htm|Genuine Mikuni jets for HSR series carbs]]
+Video: \\
+  * [[https://www.youtube.com/watch?v=xm-UVTPjRbo|IronMick's VM-38 Startup Video]]
 ===== 1970s Era- Lake Injector =====

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