1979–1985 Harley-Davidson XL/XR 1000cc 4-Speed Service & Repair Manual (P/N 99484-85)

This Harley-Davidson XL/XR service and repair manual, P/N 99484-85, covers the 1979–1985 XL family, including XLH, XLCH, XLS and XLX models, together with dedicated XR-1000 sections for its distinct engine, fuel-system and chassis components.

PDF Reading, Printing and Page Count

Text search and wiring detail: PDF text search is not available, and there are no embedded bookmarks. Small wire-color codes and connector details on the wiring diagrams require zooming to read comfortably.

One printable, English-language 343-page PDF, including the original cover and seven preliminary pages containing the foreword, warnings and contents.

Engine, Drivetrain and Electrical Workshop Coverage

These selected topics sit alongside storage procedures and metric conversion tables elsewhere in the manual.

• Engine repair: Compression and cylinder leakage tests, cylinder-head disassembly, valve-guide replacement, piston fitting, oil-pump inspection, and crankcase and flywheel rebuilding.

• Fuel systems: Carburetor troubleshooting, float and accelerator-pump service, air-cleaner maintenance, and separate XR-1000 carburetor adjustment and synchronization procedures.

• Clutch and transmission: Primary and rear chain service, clutch release adjustment, clutch overhaul, transmission disassembly, gear spacing, shaft end play, and XLCH kick-starter repair.

• Wheels and suspension: Laced-wheel assembly and truing, cast-rim runout checks, wheel-bearing service, front fork overhaul, steering-head service, and rear fork inspection.

• Brake hydraulics: Master-cylinder and caliper disassembly, component inspection, brake-disc checks, hydraulic bleeding, and model-specific brake assembly illustrations.

• Starting and electrical diagnosis: Starter relay and solenoid tests, starter-motor repair, ignition timing, V.O.E.S. checks, charging-system diagnosis, and model-specific wiring diagrams.

Suited to mechanics and experienced owners performing maintenance and repair, with major engine and transmission work requiring the specified measuring equipment and special tools.

Engine Inspection and Internal Repair

Step-by-step instructions cover cylinder-head service, cylinder measurement, piston installation and crankcase rebuilding. Factory cylinder, piston and gearcase clearances support inspection and reassembly decisions; compression and leakage diagnosis help distinguish valve, ring and head-gasket problems.

The Oiling System illustrations trace lubrication paths, while exploded crankcase and flywheel views identify assembly relationships. Cylinder measurement and machining procedures specify Torque Plate HD-34198.

XR-1000 instructions address its different cylinder heads, rocker gear and connecting-rod assembly. For pushrod replacement following an out-of-range rocker-shaft index check, the text refers to a separate service manual supplement; that supplement is not included in this PDF.

Carburetor Service and XR Synchronization

Carburetor circuit illustrations explain fuel delivery through the idle, mid-range, high-speed and accelerator-pump systems. Inspection and assembly instructions cover the float chamber, jets, inlet valve and pump components.

Service boundary: The XL throttle-valve assembly is matched to the carburetor and is not intended for disassembly; faults involving that assembly call for carburetor replacement.

The XR-1000 section describes synchronization using Multiple Carburetor Synchronizer HD-23433 or a manometer, supported by the Carburetor Synchronization illustration.

Early and Late Drivetrain Layouts

Separate procedures distinguish the 1979–early 1984 and late 1984–1985 clutch and transmission arrangements. Plate inspection, release-mechanism service and selective spacing are documented alongside shaft-bearing checks.

The Power Flow Chart explains transmission operation. Gear-spacing and engagement illustrations support the inspection and adjustment procedures rather than leaving internal assembly relationships to an exploded view alone.

Wheel, Fork and Brake Work

Wheel-alignment instructions and wet-versus-dry fork-oil capacities accompany step-by-step procedures for laced-wheel truing and front fork internal overhaul. Chassis tables provide component-specific torque values and brake-disc inspection limits.

The brake sections warn that petroleum-based cleaning solvents deteriorate rubber components and can cause component failure. Brake work also involves pressurized caliper pistons; the manual’s handling warnings and inspection requirements remain important.

Starter, Ignition and Charging Tests

Starter diagnosis includes pull-in, hold-in and return tests, plus armature and field-winding checks. The Starter Relay Internal Wiring Diagram and Test Circuit supports relay diagnosis.

Year-specific ignition procedures cover timing and component testing. Generator and alternator charging systems have separate test sections, with wiring diagrams, charging schematics and connector details for tracing faults.

The generator-polarization instructions explain that incorrect polarity can prevent battery charging and may damage the regulator.

A Preview of Compression and Valve-Clearance Data

For XL compression testing, normal final readings are at least 120 psi, with no more than 10 psi variation between cylinders. The procedure specifies normal operating temperature where possible, with the choke and throttle plates fully open during cranking.

XR-1000 valve-adjustment data specify 0.002–0.003 in. clearance between the rocker arm and valve-stem tip with the engine cold.