1984–1999 Harley-Davidson Softail FXST, FXSTC, FXSTS, FLST, FLSTC, FLSTF, and FLSTN OEM Service & Repair Manual

This service and repair manual covers 1984–1999 Harley-Davidson 1340 cc Evolution Softail models, with a dedicated supplement for procedures and specifications unique to 1995–1999 models.

PDF Bookmarks, Diagram Detail, and Page Count

Search and chapter access: PDF text search is not available. Embedded bookmarks provide access to the chapters, supplement, index, wiring diagrams, contents, and Quick Reference Data. Small wiring labels are best read with zoom; the checked diagrams retain readable component labels and wire-color codes when enlarged.

One printable 651-page PDF contains the main chapters, integrated supplement, index, and wiring diagrams. The total already includes two title sheets, five contents pages, and six Quick Reference Data pages. The main cover, contents, and quick-reference pages appear at the end of the file.

Evolution Engine, Drivetrain, and Chassis Service

The following selected repair topics outline the manual’s coverage rather than reproduce its full contents; additional subjects include fastener identification and bearing and oil-seal replacement.

• Engine overhaul: Step-by-step removal, cylinder-head and valve service, piston inspection, oil-pump work, timing gears, and crankcase/crankshaft repair.

• Clutch and primary drive: Dry- and wet-clutch service, compensating sprocket, primary chaincase, early starter drives, and later starter jackshafts.

• Transmission repair: Separate 4-speed and 5-speed disassembly, inspection, assembly, shifter service, and adjustment procedures, including kickstarter work.

• Fuel and emissions: Keihin and CV carburetor cleaning, inspection, rejetting, cable replacement, fuel-system service, exhaust, and California emissions.

• Electrical diagnosis: No-start troubleshooting, charging-system output tests, ignition-coil and module checks, starter testing, and turn-signal fault isolation.

• Chassis and brakes: Wheel and hub service, chain and belt drives, telescopic and Springer forks, steering, rear suspension, hydraulic brake repair, and bleeding.

• Diagrams and specifications: Model-specific wiring, torque tables, capacities, wear limits, tune-up specifications, electrical test values, and special-tool callouts.

The manual is written for DIY owners and professional mechanics, while its engine-overhaul chapter calls for considerable mechanical ability and specialized tools.

Model Changes and Supplement Coverage

The model tables identify the Custom, Springer, Classic, Fat Boy, and Heritage variants. The supplement also lists FXSTB Night Train, FXSTSB Bad Boy, and FLSTS Heritage Springer.

Later changes are grouped in Chapter Sixteen rather than incorporated into every earlier chapter. Reading the applicable base chapter with its supplement section helps match the procedure to the installed engine, drivetrain, or chassis configuration before disassembly.

Supplemental coverage includes 1996–1999 engine removal, 1998–1999 wet-clutch and primary-drive changes, and later wheels, hubs, Springer forks, brakes, and fenders.

Engine Inspection and Overhaul Detail

Routine service includes compression and leak-down testing, ignition timing, carburetor adjustment, and storage preparation. Engine inspection extends to bore and runout measurements, gasket-surface checks, torque sequences, and break-in.

Assembly sections address cylinder-head O-rings, gasket orientation, position-coded pushrods, and tappet guides. Special-tool references include HD-34643 with driver handle HD-34740 for valve-guide seals, plus HD-33446 torque plates for cylinder measurement under simulated clamping load.

Clutch, Starter Drive, and Transmission Differences

Powertrain procedures distinguish the early-1984 FXST dry clutch, late-1984–1989 and 1990-on wet clutches, 1984–1988 starter drives, and 1989-on starter jackshafts.

The 1984–1985 FXST 4-speed chapter includes shifter-cover, shift-fork, starter-clutch, and side-cover work. The 5-speed chapter covers 1986-on assemblies through gears, shafts, cases, side covers, and adjustments.

The manual explains the late-1991 shifter-cam change and the 1994 domestic-versus-HDI high-contact-ratio gear sets. It warns that mixing the two gear types can damage mating gears.

Carburetors, Fuel Delivery, and Emissions

Fuel-system service separates the 1984–1989 Keihin carburetor from the 1990-on CV unit. Procedures cover disassembly, cleaning, inspection, assembly, rejetting, throttle and idle cables, choke/enrichener cables, fuel tanks, and shutoff valves.

Exhaust and emissions coverage distinguishes 1985–1991 California controls from 1992-on evaporative systems. The supplement adds 1996–1999 solenoid-operated butterfly-valve tests, with test-harness drawings and separate winding, pull-in, and hold-in checks.

Electrical Fault Finding and Later Components

Troubleshooting addresses fuel delivery, engine noise, lubrication, clutch and transmission faults, vibration, steering, and braking as well as starting, charging, and ignition problems.

Electrical service includes batteries, alternators and regulators, ignition coils and modules, starter motors and solenoids, relays, switches, the horn, circuit breakers, and the 1991-on turn-signal module. The solenoid section does not provide a service procedure for 1989–1990 models.

Later sections cover 1995–1999 ignition systems, 1998–1999 sealed batteries, and 1997–1999 switches and turn-signal modules. Revised connector views and pin assignments distinguish later module tests from earlier versions.

Wheels, Suspension, Brakes, and Bodywork

Wheels and suspension: Laced- and cast-wheel service includes hub and bearing work, wheel balance, and tube-type and tubeless tire repair. Separate sections address steering-head bearings, Springer rocker assemblies, rear shocks, and the swing arm.

Rear-shock coverage includes removal, replacement, and adjustment where provided. The manual treats the shock absorbers as non-rechargeable units rather than assemblies for internal overhaul.

Hydraulic brakes: Caliper and master-cylinder procedures accompany brake-hose replacement, disc inspection, and bleeding. The brake chapter specifies DOT 5 fluid and explains how solvent contamination can swell and distort hydraulic seals; opened brake lines require bleeding.

Bodywork coverage includes front and rear fenders, saddlebags, frame inspection, and frame repainting.

Secure the motorcycle before lifting, isolate the battery where specified, and control fuel, brake-fluid, and spring-load hazards before disassembly.

Year-Specific Wiring and Workshop References

Wiring sheets distinguish 1984 FXST, early 1985 FXST/C, and late 1985–1986 FXST/C configurations. Further examples include 1989–1990 FXST/C/S and 1990 FLSTF, separate 1993 domestic and HDI sheets, and 1996–1999 main-harness, lighting, instrument, and headlight diagrams.

Supporting illustrations include Oil Hose Routing, Shift Cam Assembly, Rocker and Front Brake (Springer), and the Turn Signal Module circuit and connector views.

Quick Reference Data groups tire pressures, approved oils and fluids, engine and drivetrain capacities, fork-oil data, and carburetor specifications. Electrical and starter tests, clutch and brake limits, circuit-breaker ratings, and major tightening torques provide additional workshop references.

Sample Rocker-Arm Clearances and Wear Limits

For the Evolution engine’s rocker arms, the engine service table lists end clearance of 0.003–0.013 in., with a separate wear limit of 0.025 in.

Rocker-arm shaft clearance is specified at 0.0005–0.002 in., with a wear limit of 0.0035 in. These dimensions accompany the rocker-arm inspection procedures.