Positioning:
The FXSTB Night Train was a popular custom cruiser in Harley-Davidson's lineup, known for its aggressive styling, low-slung profile, and the potent Twin Cam 88B engine. This manual targets owners and independent mechanics seeking in-depth knowledge for maintenance and repair.
Competitors:
Competed with other V-twin cruisers from brands like Indian, Victory, and custom choppers from smaller manufacturers, as well as Japanese V-twin offerings.
Features:
Distinctive blacked-out styling, wide handlebars, low seat height, powerful Twin Cam 88B engine, and custom exhaust notes.
Engine:
Twin Cam 88B Engine (1450cc/88 cubic inch) disassembly, assembly, troubleshooting, and specifications.
Fuel System:
Carburetor (Keihin CV) tuning, adjustments, and rebuild; fuel injection components (if applicable to specific sub-models or upgrades).
Ignition System:
Ignition module, spark plugs, ignition timing, and related components.
Transmission:
5-speed constant mesh transmission, clutch service, primary drive, and gearbox overhaul.
Electrical System:
Complete wiring diagrams, lighting system, charging system (alternator, regulator/rectifier), starter motor, battery maintenance, and accessory wiring.
Brakes:
Front and rear brake system service, including hydraulic lines, calipers, master cylinders, brake pads, and rotor maintenance.
Suspension:
Front fork (Grizzly) disassembly, assembly, fluid changes, and rear shock absorber service.
Chassis And Frame:
Frame inspection, wheel bearing service, steering head bearing adjustment, and driveline alignment.
Bodywork And Trim:
Fenders, fuel tank, seat, handlebars, and other external components removal, installation, and alignment.
Engine Overhaul:
Detailed steps for complete engine disassembly, inspection, component replacement, and reassembly.
Transmission Rebuild:
Comprehensive guide for transmission internal repair and maintenance.
Clutch Adjustment And Replacement:
Proper procedures for clutch operation and component servicing.
Electrical Diagnostics:
Step-by-step troubleshooting guides for electrical faults using wiring diagrams.
Brake System Bleeding:
Correct procedure for bleeding hydraulic brake systems.
Fork Seal Replacement:
Detailed instructions for replacing front fork seals and fluid.
Carburetor Tuning:
Methods for adjusting and optimizing carburetor performance.
Wheel Alignment:
Procedures for ensuring proper wheel and tire alignment.
Scheduled Maintenance:
Routine maintenance tasks and their recommended intervals.
Troubleshooting Guides:
Problem identification and resolution strategies for common and complex issues.
Depth:
Comprehensive; covers from basic maintenance and adjustments to complete engine and transmission rebuilds, and in-depth electrical diagnostics.
Engine Type:
Air-cooled, 45-degree V-twin, Twin Cam 88B
Displacement:
1449 cc (88 cubic inches)
Bore X Stroke:
3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)
Valvetrain:
Overhead valves (OHV), pushrod activated, 2 valves per cylinder
Cooling System:
Air-cooled
Oil Capacity:
3.0 U.S. quarts (2.8 Liters)
Oil Type:
Harley-Davidson recommended V-twin engine oil (e.g., 20W-50)
Horsepower:
Approx. 65-70 HP (estimated, varies by dyno and exhaust)
Torque:
Approx. 70-75 ft-lbs @ 3500 RPM (estimated)
Fuel Delivery:
Keihin CV 40mm carburetor (standard); some models may have had earlier EFI options or aftermarket conversions.
Fuel Type:
Unleaded gasoline, minimum 87 octane
Fuel Tank Capacity:
4.0 U.S. gallons (15.1 Liters)
Transmission Type:
5-speed, constant mesh
Clutch Type:
Multi-plate, wet
Primary Drive:
Duplex chain
Transmission Fluid Type:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant, or equivalent (e.g., SAE 50 gear oil)
Gear Ratios:
Refer to specific manual for detailed gear ratios (e.g., 1st: 9.336, 2nd: 6.708, 3rd: 4.749, 4th: 3.752, 5th: 3.158)
Length:
Approx. 93.5 inches (2375 mm)
Width:
Approx. 34.5 inches (876 mm) (at handlebars)
Height:
Approx. 47.5 inches (1207 mm) (at handlebars)
Wheelbase:
Approx. 64.5 inches (1638 mm)
Seat Height:
Approx. 26.3 inches (668 mm) (unladen)
Dry Weight:
Approx. 660 lbs (299 kg)
Gross Vehicle Weight Rating:
Refer to VIN plate or owner's manual; typically around 1000 lbs.
Weight Distribution:
Designed for a lower center of gravity for cruiser stability.
Crash Test Ratings:
Motorcycles are not typically subjected to standardized crash testing in the same manner as passenger cars. Safety is primarily determined by rider skill and adherence to safe riding practices.
Braking System:
Dual-piston front caliper with 292mm disc; single-piston rear caliper with 292mm disc. ABS was not a standard factory option for this model year.
Lighting:
Halogen headlight, taillight, and turn signals for visibility.
Frame Design:
Steel cradle frame providing a stable platform.
Tire Specifications:
Front: MT90B16 (or similar); Rear: MU85B16 (or similar). Tire pressure is critical for safe handling.
Operator Safety:
Emphasis on rider training, protective gear, and responsible operation.
Initial Service:
First service typically at 1,000 miles (1600 km) for oil change, primary chain adjustment, and general inspection.
Regular Oil Change:
Every 2,500-5,000 miles (4000-8000 km) or as per manual, depending on riding conditions and oil type.
Primary Chain Adjustment:
Every 2,500 miles (4000 km) or as needed.
Spark Plug Replacement:
Every 10,000-20,000 miles (16000-32000 km) or as per manual.
Belt Tension Check:
Regular checks and adjustment as needed.
Engine Oil:
Harley-Davidson V-Twin Oil 20W-50, or equivalent API SG/SH/SJ/SL rated oil.
Transmission Primary Fluid:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant, or SAE 50 gear oil.
Brake Fluid:
DOT 4 hydraulic brake fluid.
Fork Oil:
Refer to manual for specific weight and quantity (e.g., 15W fork oil).
Common Issues:
Potential for oil leaks from gaskets and seals, clutch judder, starter issues, carburetor performance variations, and some electrical gremlins if not properly maintained. Cam chain tensioner wear on earlier Twin Cam models can be a concern, although later models had updated tensioners. Primary drive chain adjustment is crucial.
Heritage:
Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer with a rich history of building V-twin motorcycles known for their character, sound, and lifestyle association.
Evolution:
The FXSTB Night Train was part of the Softail family, distinguished by its custom styling. It was introduced in 1999 as a stripped-down, blacked-out version of the custom Softail model, evolving through different engine displacements and styling cues over the years.
Production Years:
The FXSTB Night Train model was produced by Harley-Davidson from 1999 to 2009.
Manufacturing Location:
York, Pennsylvania, USA; Milwaukee, Wisconsin, USA