Segment:
Sport Naked / Standard Motorcycle
Target Audience:
Enthusiasts seeking performance and classic styling, DIY mechanics, repair shops
Competitors:
Honda CB400SF, Kawasaki Zephyr 400, Yamaha XJR400 (in respective markets)
Model Appeal:
Compact inline-four engine, agile handling, distinctive Bandit styling, reliable performance
Manual Value Proposition:
Essential resource for maintaining originality, diagnosing issues, and performing all necessary repairs to keep the GSF400 Bandit in optimal condition.
Primary Coverage:
Repair, Maintenance, Troubleshooting, Specifications for Suzuki GSF400 Bandit
Secondary Coverage:
Wiring Diagrams, Torque Specifications, Component Identification
Estimated Pages:
N/A (Factory Service Manuals vary, but typically extensive)
Type:
Factory Service Repair Manual
Format:
Digital (likely PDF, common for reprints/online sales)
Engine:
Engine disassembly, assembly, overhaul, timing, lubrication, cooling, ignition, fuel, exhaust
Transmission:
Clutch, gearbox inspection, removal, installation, internal components
Chassis And Suspension:
Frame, forks, rear shock absorber, swingarm, steering system
Brakes:
Front and rear brake systems, hydraulic lines, calipers, master cylinders, adjustments
Electrical System:
Battery, charging system, ignition system, lighting, starting system, wiring diagrams, diagnostic codes
Fuel System:
Carburetor assembly, jetting, fuel pump, fuel lines, fuel tank
Bodywork:
Fairings, seat, fuel tank, fenders, trim removal and installation
Maintenance:
Scheduled maintenance, oil changes, filter replacements, chain adjustment, brake bleeding
Troubleshooting:
Diagnostic flowcharts, common problems and solutions, electrical system troubleshooting
Repair:
Detailed step-by-step repair procedures for all major components
Disassembly Assembly:
Complete breakdown and reassembly instructions for engine, transmission, and other systems
Depth:
Comprehensive, covering all aspects from basic adjustments to full engine rebuilds
Type:
Liquid-cooled, 4-stroke, DOHC, inline-four
Bore X Stroke:
53.0 mm x 45.2 mm
Compression Ratio:
11.5:1
Horsepower Approx:
57 PS (42 kW) @ 11,000 rpm (claimed, may vary by market/tuning)
Torque Approx:
3.8 kgf-m (37 Nm) @ 9,000 rpm (claimed, may vary by market/tuning)
Carburetors:
4 x Mikuni BST33 CV carbs
Fuel Type:
Unleaded gasoline
Ignition System:
Electronic ignition (CDI)
Cooling Method:
Liquid-cooled
Crash Test Ratings:
N/A (Motorcycles typically do not have standardized crash test ratings like cars)
Brakes Front:
Dual 290 mm discs, hydraulic calipers
Brakes Rear:
Single 240 mm disc, hydraulic caliper
Lighting:
Halogen headlight, LED taillight/brake light
Instrument Cluster:
Analog speedometer, tachometer, fuel gauge, indicator lights, odometer, trip meter.
ABS:
Not available on standard 1993 GSF400 models.
Connectivity Features:
N/A (no electronic connectivity features)
Oil Change:
Every 6,000 km (3,700 miles) or 6 months
Valve Clearance Check:
Every 12,000 km (7,500 miles)
Chain Lubrication Adjustment:
Every 1,000 km (600 miles) or after washing/heavy rain
Engine Oil Type:
SAE 10W-40 API SG or higher (check manual for specific viscosity range based on temperature)
Engine Oil Capacity:
Approx. 2.8 L (2.9 US qt) without filter change; Approx. 3.0 L (3.2 US qt) with filter change
Coolant Type:
Ethylene glycol-based antifreeze coolant (50% mixture with distilled water)
Fork Oil Type:
Telescopic fork oil (SAE 10W recommended, check manual for precise specification)
Carburetor Sync:
Carburetors can fall out of sync, leading to rough idling and poor performance. Regular syncing is crucial.
Cam Chain Tensioner:
The automatic cam chain tensioner can weaken or fail, causing rattling noises from the engine. Manual replacement or upgrade is often recommended.
Electrical Connections:
Aging wiring and connectors can lead to intermittent electrical faults. Cleaning and dielectric grease application can help.
Fuel Tap:
The vacuum-operated fuel tap can fail, leading to fuel starvation or leaking into the crankcase. Inspection and potential replacement are necessary.
Suzuki Motorcycles:
Suzuki has a long history in motorcycle manufacturing, known for innovation and performance across various classes, from smaller displacement commuter bikes to large superbikes.
Gsf400 Bandit Introduction:
The GSF400 Bandit was introduced in the late 1980s/early 1990s, often as a Japanese domestic market (JDM) model, before wider international release. It was designed to offer a compact, affordable, yet sporty four-cylinder package.
Design Philosophy:
Emphasized a balance of performance, handling, and practicality, making it a popular choice for everyday riding and spirited weekend trips.
Production Period:
The GSF400 Bandit was produced through the 1990s, with various updates and iterations in different markets.
