Segment:
Cruiser Motorcycle
Target Audience:
Riders seeking classic styling, V-twin power, and a platform for customization and long-distance cruising.
Competitors:
Harley-Davidson Sportster and Softail models, Honda Shadow series, Yamaha Virago/V-Star series, Kawasaki Vulcan series.
Engine Configuration:
Air-cooled, 45-degree V-twin engine known for its torque and distinctive exhaust note.
Drivetrain Type:
Shaft drive, offering low maintenance compared to chain drives.
Styling:
Classic cruiser aesthetics with ample chrome, teardrop fuel tank, and forward-mounted foot controls.
Ride Comfort:
Generally comfortable for cruising, with a low seat height and relaxed riding posture.
Utility:
Essential for DIY maintenance, repairs, and understanding the complex systems of the VS1400 Intruder, saving significant costs on professional servicing.
Model Years Covered:
1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Approximate Page Count:
Hundreds of pages (specific number not provided, indicative of comprehensive coverage)
Type:
Service Repair Manual
Language:
English (presumed based on common market and product description)
Engine:
Complete engine disassembly, assembly, tuning, diagnostics, component inspection, lubrication system, cooling system (air-cooled), fuel system (carburetion).
Transmission:
Clutch operation, gearbox disassembly and assembly, gear selection mechanisms, lubrication.
Drivetrain:
Shaft drive system, universal joints, final drive unit maintenance and repair.
Fuel System:
Carburetor identification, disassembly, cleaning, adjustment (including jetting), fuel lines, fuel pump (if applicable), fuel tank maintenance.
Electrical System:
Ignition system (CDI, spark plugs, coils), lighting (headlight, taillight, indicators), charging system (stator, regulator/rectifier, battery), starter system, wiring diagrams, troubleshooting electrical faults.
Braking System:
Front and rear brake caliper service, master cylinders, brake lines, hydraulic fluid replacement, bleeding procedure, brake pad replacement, disc inspection.
Suspension:
Front fork service (oil change, seal replacement, spring inspection), rear shock absorber service/replacement, linkage inspection.
Steering:
Handlebar replacement, steering stem bearing inspection and adjustment, control cables (throttle, clutch).
Chassis And Frame:
Frame inspection, component mounting, swingarm service, wheel bearing maintenance.
Bodywork And Trim:
Fender replacement, fuel tank removal/installation, seat servicing, decorative trim.
Maintenance:
Routine checks, lubrication points, filter replacement (oil, air), spark plug replacement, chain/shaft drive adjustment, brake pad replacement, fluid changes (oil, brake, coolant if applicable).
Troubleshooting:
Diagnostic charts for common issues, symptom-based fault finding, electrical troubleshooting guides.
Repair:
Detailed step-by-step instructions for component overhaul, replacement, and adjustment across all major vehicle systems.
Rebuilding:
Comprehensive instructions for engine and transmission rebuilds, including torque specifications and clearances.
Refurbishment:
Guidance on restoring worn components and cosmetic elements.
Restoration:
Detailed information useful for bringing a classic model back to original specifications.
Diagnostic Capabilities:
Advanced diagnostic procedures for engine performance and electrical systems.
Rebuild Instructions:
Full engine and transmission rebuild procedures, including internal component specifications.
Specification Detail:
Precise torque values, clearances, fluid capacities, and electrical specifications.
Wiring Diagrams:
Detailed, color-coded wiring diagrams for all electrical circuits.
Special Tools:
Identification of any special tools required for specific maintenance or repair tasks.
Type:
Air-cooled, 4-stroke, V-twin (90-degree cylinder bank angle, often referred to as 45-degree configuration due to crankshaft throw)
Displacement:
1360 cc (83 cubic inches)
Bore X Stroke:
82.0 mm x 81.0 mm (approximate, exact figures may vary slightly across early/late models)
Compression Ratio:
8.2:1 (typical)
Valvetrain:
SOHC (Single Overhead Camshaft), 2 valves per cylinder
Power Output:
Approximately 60-65 HP @ 4800 RPM (specific figures may vary by market and year)
Torque Output:
Approximately 73-78 lb-ft @ 3200 RPM (specific figures may vary by market and year)
Carburetor:
Dual Mikuni BS36 carburetors (or similar model, often single slide, constant velocity)
Fuel Delivery:
Diaphragm-type fuel pump
Type:
Electronic ignition (CDI)
Crash Test Results:
N/A (Motorcycle safety ratings typically not applicable in the same manner as automobiles)
Braking System:
Hydraulic disc brakes front and rear. Later models may have ABS as an option in some markets, though generally not standard on this model range.
Lighting:
Halogen headlight, taillight, brake light, and front/rear turn signals.
Frame Construction:
Steel cradle frame designed for stability.
Tires:
Tubeless or tube-type tires depending on wheel type and model year. Specific tire sizes (e.g., 130/90-16 front, 170/80-15 rear) are critical for handling and stability.
Engine Oil And Filter Change:
Typically every 4,000 - 6,000 km (2,500 - 3,700 miles) or 6-12 months, whichever comes first. Refer to manual for precise interval.
Air Filter Cleaning Or Replacement:
Inspect every 4,000 km (2,500 miles), clean or replace as needed based on condition and operating environment.
Spark Plug Replacement:
Typically every 12,000 - 16,000 km (7,500 - 10,000 miles), depending on plug type and condition.
Brake Fluid Change:
Recommended every 2 years or as per manual, due to hygroscopic nature of brake fluid.
Shaft Drive Service:
Check and replenish lubrication approximately every 10,000 - 15,000 km (6,000 - 9,000 miles), or as specified in the manual.
Engine Oil Type:
API SG or higher, SAE 10W-40 or 20W-50 motorcycle specific oil (check manual for exact viscosity recommendations based on ambient temperature).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (refer to manual for specific recommendation).
Cooling System Fluid:
N/A (Air-cooled engine)
Carburetor Tuning:
Carburetors can be sensitive to altitude and modifications, requiring periodic adjustment. Diaphragm wear can also cause issues.
Clutch Slippage:
Can occur with age and heavy use, often requiring clutch plate replacement.
Charging System:
Stator or regulator/rectifier failures can occur, leading to battery charging problems.
Fuel Line Degradation:
Older fuel lines can become brittle and leak, requiring replacement.
Maintenance Schedule Summary
Crucial Tasks:
Regular oil changes, checking tire pressures, inspecting brake pads and fluid, cleaning or replacing the air filter, and verifying shaft drive lubrication are paramount for longevity.
Manufacturer:
Suzuki Motor Corporation, a Japanese multinational corporation known for its wide range of vehicles, including motorcycles, automobiles, ATVs, and marine engines.
Motorcycle Focus:
Suzuki has a long and successful history in motorcycle racing and production, with iconic models across various categories.
Introduction Year:
The VS1400 Intruder was first introduced in 1987.
Development Context:
Developed to compete in the growing cruiser market, offering a larger displacement V-twin engine with a distinctive American-inspired styling.
Major Updates:
While the core design remained consistent, minor updates in styling, component suppliers, and emissions control occurred throughout its production run. The model was rebadged as the Boulevard S83 in North America from 2005 onwards, continuing its lineage.
Manufacturing Location:
Primarily manufactured in Japan by Suzuki.
Production Years:
1987 - 2004 (as VS1400 Intruder), continued as Boulevard S83 thereafter.
