Differences

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--- sportster_history:1991_sportster [2022/01/28 00:31]
hippysmack [Vehicle Identification Number (VIN)]
+++ sportster_history:1991_sportster [2022/01/30 21:55]
hippysmack [Engine]
@@ Line 51: / Line 51: @@
 |{{:sportster_history:l001-fsm-1991_edition_cover_99484-91_for_1991.jpg?direct&200|}}|{{:sportster_history:l001-fsm-1992_edition_cover_99484-92_for_1991-1992.jpg?direct&200|}}|{{:sportster_history:l002-pc-1991_edition_cover_99451-91_for_1991.jpg?direct&200|}}|{{:sportster_history:l002-pc-1992_edition_cover_99451-92_for_1991-1992.jpg?direct&200|}}|
-===== Engine, Drivetrain, Performance =====
+====== Specifications ======
-===== Specifications =====
+==== Model Designations ====
+  * Model Designations: XLH-883, XLH-883 Hugger, XLH-883 Deluxe, XLH-1200
+==== Dimensions ====
+  * Wheelbase: ((Harley-Davidson Sportster 1991 Service Manual pg 2-1))
+    * XLH-883 / XLH-883 Deluxe, 60 in / 152.40 cm
+    * XLH-883 Hugger, 60.5 in / 153.67 cm
+    * XLH-1200, 60 in / 152.40 cm
+  * Overall Length: ((Harley-Davidson Sportster 1991 Service Manual pg 2-1))
+    * XLH-883 / XLH-883 Deluxe, 87.5 in / 222.25 cm
+    * XLH-883 Hugger, 87.5 in / 222.25 cm
+    * XLH-1200, 87.5 in / 222.25 cm
+  * Overall Width: ((Harley-Davidson Sportster 1991 Service Manual pg 2-1))
+    * XLH-883 / XLH-883 Deluxe, 32 in / 81.28 cm
+    * XLH-883 Hugger, 33 in / 83.82 cm
+  * Overall Height: ((Harley-Davidson Sportster 1991 Service Manual pg 2-1))
+    * XLH-883 / XLH-883 Deluxe, 47.5 in / 120.65 cm
+    * XLH-883 Hugger, 49.75 in / 126.365 cm
+    * XLH-1200, 49.75 in / 126.36 cm
+  * Road Clearance: ((Harley-Davidson Sportster 1991 Service Manual pg 2-1))
+    * XLH-883 / XLH-883 Deluxe, 6.75 in / 17.145 cm
+    * XLH-883 Hugger, 5.9 in / 14.986 cm
+    * XLH-1200, 6.75 in / 17.145 cm
+  * Weight (as shipped from the factory): ((Harley-Davidson Sportster 1991 Service Manual pg 2-1))
+    * XLH-883, XLH-883 Hugger, 472 lbs.
+    * XLH-883 Deluxe, 484 lbs.
+    * XLH-1200, 470 lbs.
+==== Engine ====
+  * Engine type: 4 cycle Overhead Valves, 45 degree V2 ((Harley-Davidson Sportster 1991 Service Manual pgs 3-1,3-2, 3-3))
+  * Displacement:
+    * 883cc: 53.9 ci
+    * 1200cc: 73.3 ci
+  * Compression Ratio: 9:1
+  * HP @ 6000 RPM:
+    * 883cc, 52
+    * 1200cc, 68
+  * Torque:
+    * 883cc, 53 ft/lbs at 4250 RPM
+    * 1200cc, 72 ft/lbs at 4500 RPM
+  * Bore:
+    * 883: 3 in / 76.2 mm
+    * 1200: 3.498 in / 88.8492 mm
+  * Stroke: 3.812 in / 96.8248 mm
+  * 4 Cams
+  * [[techtalk:ih:oil03|Gerotor type oil pump]]. \\ The oil pump and engine oil routing system was redesigned in 1991. 1990 and prior gerotor oil pumps will not function properly on 91-up engines. \\ Oil pump pressure at operating temp (gauge mounted at oil pressure switch location):
+    * Minimum: 7-12 psi (idle)
+    * Normal riding conditions: 12-17 psi (2500 rpm)
+  * [[techtalk:evo:engctl01#electronic_ignition_systems|Ignition]]: Electronic Ignition System.
+  * Spark Plugs
+    * 12mm 6R12, Gap (.038"-.043"), Torque 11-18 ft-lb / 3-5 Nm
+  * [[techtalk:evo:engctl01#voes_-_vacuum-operated_electric_switch|VOES]] (vacuum-operated electric switch) for timing advance
+  * [[techtalk:evo:carb01#keihin_butterfly_non-cv_carburetor_stock_on_l1976-1987_sportsters|Fuel System]]: HD Keihin CV carburetor
+==== Capacities =====
+  * Fuel Capacity:
+    * 2.25 gal / 8.517 l ((Harley-Davidson Sportster 1991 Service Manual pg 2-1)) \\ Reserve: .25 gal / .946 l
+  * Oil Capacity: 3 qts. / 1.419 l (quoted from -85 FSM)
+  * Transmission Capacity: 1.5 pints / .71 l
+  * Front Forks (per fork): Wet 9.0 oz, Dry 10.2 oz
+==== Clutch ====
+  * Multi-Disc wet clutch-pack with alternate steel and fiber friction plates.
+==== Drivetrain ====
+  * Constant Mesh ((Harley-Davidson Sportster 1991 Service Manual pg 6-1))
+  * Left Side Shifter
+  * Speeds - 4 Forward
+  * Number of Sprocket Teeth (all)
+    * Engine: 35
+    * Clutch: 56
+      * Clutch Sprocket to Engine Sprocket Ratio: 1.60:1
+    * Transmission:
+      * 883, 21
+      * 883 Deluxe, 27
+      * 1200, 29
+    * Rear Wheel:
+      * 883, 48
+      * 883 Deluxe, 61
+      * 1200, 61
+    * Primary Belt:
+      *
+      * 883 Deluxe, 127 (yellow)
+      * 1200, 128 (orange)
+  * Gear Ratios (XLH / XLS / XLX) ((Harley-Davidson Sportster 1991 Service Manual pg 6-1))
+    * Internal Gear Ratios: \\ Internal gear ratios indicate number of clutch gear revolutions required to drive mainshaft sprocket one revolution.
+      * 1st: 2.78:1
+      * 2nd: 2.03:1
+      * 3rd: 1.49:1
+      * 4th: 1.22:1
+      * 5th: 1.00:1
+    * Overall Gear Ratios: \\ Overall gear ratios indicate number of engine revolutions required to drive rear wheel one revolution.
+      * 883
+        * 1st: 10.17
+        * 2nd: 7.43
+        * 3rd: 5.45
+        * 4th: 4.47
+        * 5th: 3.66
+      * 883 Deluxe:
+        * 1st: 10.04
+        * 2nd: 7.33
+        * 3rd: 5.38
+        * 4th: 4.4
+        * 5th: 3.61
+      * 1200:
+        * 1st: 9.37
+        * 2nd: 6.84
+        * 3rd: 5.02
+        * 4th: 4.11
+        * 5th: 3.37
+==== Tires ====
+Rim size and contour are cast or stamped into the exterior surface of the rim. \\
+  * All 883 and 1200 Models ((Harley-Davidson Sportster 1991 Service Manual pgs 2-2, 2-3))
+    * Front:
+      * For tube type laced (contour T19x2.50 MTA) or tubeless cast (contour T19x2.15 MT) 19" wheels: Dunlop D401 (100/90-19).
+    * Rear:
+      * For tube type laced or tubeless cast (contour T16x3.00D) 16" wheels: Dunlop D401 (130/90-16).
+  * Tire pressure based on overall weight.
+    * Up to 300 lb load including rider, passenger and cargo:
+      * Front 30 psi / 2.06 bar
+      * Rear 36 psi / 2.48 bar
+    * Up to GVWR maximum load:
+      * Front 30 psi  / 2.06 bar
+      * Rear 40 psi / 2.75 bar
+==== Brake Discs ====
+For all 883cc and 1200cc models; ((Harley-Davidson Sportster 1991 Service Manual pg 2-2)) \\
+  * Diameter:
+    * Front, 11.5"
+    * Rear, 11.5"
+  * Minimum Thickness:
+    * Front, .180"
+    * Rear, .205"
 ===== Models =====

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