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1963 Sportster

Model Production Numbers

  • XLH 432
  • XLCH 1,001
  • XLRTT (?)

Colors 1)

  • Black and White.
  • Tango Red and White.
  • Horizon Metallic Blue and White.
  • Options:
    • Hi-Fi Turquoise and White.
    • Hi-Fi Red and White.
    • Hi-Fi Purple and White.

Vehicle Identification

Frame Numbers

There was no frame identification for purpose of ownership on 1957-1969 model Sportsters.
However, there were stampings on the different parts of the frame combined with certain features that can be used to date the frame.
Click Here to view Ironhead Frame Identification in the Sportsterpedia.

Engine Serial Numbers

The only numbers for the purpose of identification were on the engine case.

  • The engine serial number is stamped on the left side of the engine case between the two cylinders.
    The first 5 or 6 digits represent the year and model 2)
    From 1962-1969, models with 4 digit production (serial) numbers have an even-numbered first digit for even years and odd numbered first digit for odd years.

Click Here for more specific information on serial numbers and VINs in the Sportsterpedia (including the 1962-1969 Even/Odd Rule).

Engine Serial Number for 1963 Sportsters
Model Year
(first 2 digits)
Model
(next few digits)
(up to 4)
Sequential
Serial#
(remaining digits)
63XLH
XLCH
(example)
12345
Example: (63 XLCH 12345) indicates a 1963 XLCH model and is stamped on the Left Engine Case Between the Cylinders 3)
Example Serial Number on Engine Reads: 63XLCH12345
63 XLCH 12345

Illustrations

The following illustrations are displayed for historic and period specific parts identification only. Refer to the original OEM documents for additional information. 4)
Click on any illustration below to enlarge.

5) 6)

Specifications

Click Here for the main technical menu in the Sportsterpedia.
Also see the “Misc Resources” section on the bottom of that page for technical docs and information.

Model Designations

  • XLH, XLCH

Dimensions

  • Wheelbase: 7)
    • XLH, 56.5 in / 143.51 cm
    • XLCH, 57 in / 144.78 cm
  • Overall Length:
    • XLH, 87 in / 220.98 cm
    • XLCH, 83.25 in / 211.45 cm
  • Overall Width:
    • XLH 34 in / 86.36 cm
    • XLCH, 29.5 in / 74.93 cm
  • Overall Height:
    • XLH, 40-1/2 in / 103 cm
    • XLCH, 42 in / 106.7 cm
  • Saddle Height:
    • XLH, 26-7/8 in to 29 in / 68.26 cm to 73.66 cm
    • XLCH, 30-1/2 in / 77.47.2 cm
  • Road Clearance:
    • XLH, 2-1/2 in to 4-5/8 in / 6.35 cm to 11.74 cm
    • XLCH, 4-1/8 in to 6-1/2 in / 10.47 cm to 16.51 cm 8)

Engine

  • Engine type: 4 cycle Overhead Valves, 45 degree V2 9)
  • Hemi-spherical style heads
  • Displacement: 53.9 ci / 883 cc (900 cc advertised)
  • Compression Ratio: 9:1
  • Bore: 3 in / 76.2 mm
  • Stroke: 3.8125 in / 96.8 mm
  • Horsepower: 55 @ 6,300rpm 10)
  • Taxable Horsepower: 7.2
  • Torque: 52 ft-lb @ 3800 RPM
  • Weight:
    • XLCH - 188lbs.
    • XLH - 204 lbs.
  • 4 Cams
  • Gear driven type oil pump.
    Oil pump pressure (gauge mounted in place of oil pressure switch):
    • Idle, with spark retarded (Min: 3-7 psi)
    • Normal riding conditions: 10-14 psi (6 psi at 20 mph)
  • XLH Ignition: Battery Ignition System (circuit breaker/points/timer/distributor)
    • Point Gap: .020“
  • XLCH Ignition: Magneto Ignition System
    • Point Gap: .015”
  • Dwell: 90° at 1000 RPM
  • Ignition Timing
    • Advanced - XLH, XLCH: 45° (11/16“) BTDC
    • Retarded - XLH: 15° (5/64”) BTDC
  • Spark Plugs
    • #4 for everyday use.
    • #5 for hard service.
      • Gap
        • XLH: .025“-.030”
        • XLCH: .020“
  • Fuel System: Linkert DC carburetor.
  • Starter (all): Kick start only

Capacities

  • Fuel Capacity: 11)
    • XL, XLH 3.75 gal / 14.19 l 12)
    • XLCH 2.25 gal / 8.51 l
  • Oil Capacity: 3 qts. / 2.83 l
  • Transmission Capacity: 1.5 pints / .71 l

Clutch

  • Multi-Disc dry clutch-pack with alternate steel and fiber friction plates.13)

Drivetrain

  • Constant Mesh - right side foot shift 14)
  • Speeds - 4 Forward
  • Number of Sprocket Teeth
    • XLH:
      • Engine: 34
      • Clutch: 59
      • Transmission: 21
      • Rear Wheel: 51
    • XLCH:
      • Engine: 34
      • Clutch: 59
      • Transmission: 20
      • Rear Wheel: 51
  • Standard Gear Ratios (XLH)
    • 1st: 10.63 to 1
    • 2nd: 7.69 to 1
    • 3rd: 5.82 to 1
    • 4th: 4.21 to 1
  • Standard Gear Ratios (XLCH)
    • 1st: 11.16:1
    • 2nd: 8.08:1
    • 3rd: 6.11:1
    • 4th: 4.42:1

Tires

Tire pressure (based on a rider weighing app. 150 lbs or more).
For each 50 lbs of overload, increase rear tire pressure by 2 lbs, front by 1 lb 15) but not exceeding manuf max tire pressure.

  • XLH:
    • Front: 3.50 x 18 (tire pressure: 14 psi / .96 bar)
    • Rear: 3.50 x 18 (tire pressure: 18 psi / 1.24 bar)
  • XLCH:
    • Front: 3.25 / 3.50 x 19 (tire Pressure: 14 psi / .96 bar)
    • Rear: 4.0 x 18 (tire pressure: 18 psi / 1.24 bar)

Models

XLH 883

$1,270 with 432 produced16) What is the Current KBB Value? 17)

  • 1.323:1 3rd gear ratios (were 1.381) 18)
  • Final ratio 5.56:1 19)

XLCH 883

$1,355 (when new) with 1,001 produced 20) What is the Current KBB Value? 21)

  • 1.323:1 3rd gear ratios (were 1.381) 22)
    • Final ratio 5.85:1
    • “Shorty Duals” Exhaust
    • An ignition key and improved magneto/coil
2)
HD Parts Catalog XLH/XLCH-1000 #(99451-78)
3)
1953-1963 HD Parts Catalog backside of front cover
4)
illustrations from various academic journals
5) , 6)
illustration from a collection by The French Owl of the XLFORUM
7) , 9) , 10)
Harley-Davidson 1957 - 1969 Service Manual
8)
HD 1960, 1962 Sportster Service Manuals
11)
Harley-Davidson 1957 - 1969 Sportster Service Manual
12)
HD 1962 Sportster Service Manual
13)
1957-1969 HD FSM pg 4A-3
14)
1957-1969 HD FSM pg 1A-3
15)
1959-1964 HD FSM pg 1A-3
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