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--- techtalk:ih:carb01q [2019/10/16 23:13]
hippysmack [Assembly]
+++ techtalk:ih:carb01q [2020/04/01 20:17]
hippysmack [IH: Carburetor, Intake Manifold & Exhaust Systems - Sub-01Q]
@@ Line 79: / Line 79: @@
 {{:techtalk:ref:tools:carb_stand_1_by_ironmick.jpg?direct&150|}} ((photo by IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=185361)) {{:techtalk:ref:tools:carb_stand_2_by_ironmick.jpg?direct&150|}} ((photo by IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=185361))  \\
-====== Assembly ======
+====== Rebuild Kit ======
 You can purchase individual parts or a rebuild kit. \\
 The kits will not have needles, jets or the spring, washer & o-ring for the Idle Mixture Screw. \\
-It's best to get the rebuild kit with Viton rubber. \\
+It's best to get the rebuild kit with Viton rubber because it doesn't swell due to modern gas. \\
 The HD rebuild kit is part# 27006-92T. \\
+[[https://www.amazon.com/exec/obidos/ASIN/B009CA2SEU/cookinexperi-20|V-Twin Viton Rebuild Kit]]: #35-9176. \\
+[[https://www.amazon.com/dp/B009CA1HFQ/ref=psdc_15727541_t2_B009CA2SEU|V-Twin Rebuild Kit]]: 35-9172. \\
+[[https://www.jpcycles.com/product/4000050/j-p-cycles-carb-deluxe-rebuild-kit|J&P Cycles Rebuild Kit]]: #4000050. \\
+[[https://www.jpcycles.com/product/402-828/genuine-james-keihin-carburetor-overhaul-gasket-kit|Guenuine James Rebuild Kit]]: JGI-27006-76. \\
   * Carb-to-Manifold Seal
@@ Line 152: / Line 156: @@
 Use a feeler gauge to check for war-page. File or sand flat if necessary. \\
 If war-page exists, it may leak air and drive you nuts trying to find the source of the leak. \\
+==== Choke Shaft ====
+  * On 76-78 carbs, check where the choke detent plate attaches to the shaft can get loose and sloppy. ((sportsterpaul's Keihin Rebuild Video https://www.youtube.com/watch?v=f_Ek37GEEN4&feature=youtu.be)) \\ This joint can be brazed to tighten it back up and get better choke action.
+  * During a backfire, the choke can slap all the way shut. ((sportsterpaul's Keihin Rebuild Video https://www.youtube.com/watch?v=f_Ek37GEEN4&feature=youtu.be)) \\ Then you kick it 5,000 times wondering what's wrong, you've flooded it, the plug's get wet and you're pushing it. \\ You can put a 0-80 screw into the lower hole in the detent plate to keep the choke plate from slamming shut and causing problems starting. \\ These holes are for a ball detent on the back side of the detent plate. \\ By installing a little 0-80 screw right there, when the bike backfires and they always do, the choke doesn't fully close and will save you a lot of grief.
+  * When hooking up the choke cable, if you put the mounting screw down, you can't get the air filter on. ((sportsterpaul's Keihin Rebuild Video https://www.youtube.com/watch?v=f_Ek37GEEN4&feature=youtu.be)) \\ You need to tighten it with the screw pointing up, at least the after-market air filters. \\ That chrome back plate, when it slips on, there's not enough clearance down there if the screw points down.
+{{:techtalk:ih:carb:keihin_butterfly_choke_shaft_maintenance_by_hopper_-_annotated_by_hippysmack.jpg?direct&300|}} ((photo by Hopper of the XLFORUM, annotated by Hippysmack)) \\
 ===== Low speed mixture screw =====
@@ Line 161: / Line 172: @@
 The change was made after the Sportster began using the Keihin carburetor so this would've affected the L76 and E77 carbs. \\
+===== Idle Transfer Ports =====
+These are four holes (as viewed from the upper inside of the venture from the engine side). \\
+  * Check that the ports are not gunked up and are free of obstructions.
+  * Check that the Welch plug over the top of them isn't leaking. \\ It's good to remove any old sealer over the Welch plug and install some fresh. Read about [[techtalk:ih:carb01q#welch_plug|Welch Plugs]] below.
+  * If you've dunked the carb in carb cleaner, any sealant that was around the Welch plug would now be compromised and resealing is a must.
 ===== Jets =====
 {{:techtalk:ih:carb:keihin_jets_by_billblack_-_cropped-annotated.jpg?direct&400|}} ((photo by billblack of the XLFORUM, cropped & annotated by Hippysmack http://xlforum.net/forums/showthread.php?p=4770495&highlight=keihin+bowl#post4770495)) \\
@@ Line 359: / Line 375: @@
 {{:techtalk:ih:carb:86_keihin_carb_repair_1_by_bustakneecap.jpg?direct&300|}} ((photo by bustakneecap of the XLFORUM http://xlforum.net/forums/showthread.php?p=3864149)) {{:techtalk:ih:carb:86_keihin_carb_repair_2_by_bustakneecap.jpg?direct&300|}} ((photo by bustakneecap of the XLFORUM http://xlforum.net/forums/showthread.php?p=3864149)) {{:techtalk:ih:carb:86_keihin_carb_repair_3_by_bustakneecap.jpg?direct&300|}} ((photo by bustakneecap of the XLFORUM http://xlforum.net/forums/showthread.php?p=3864149)) \\
+===== Choke Rod / Cable =====
+The old factory steel choke wire and the steel bracket works best. \\
+When the bike backfires, it resists slapping the choke shut. \\
+The cable type ones allow more flex at the bracket and subsequently the choke plate. \\
 ===== High Altitude Modification Kit =====

Trace:

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