This manual covers the Suzuki GS1000L motorcycle, produced from 1979 to 1980. As a standard motorcycle with cruiser styling, the GS1000L is powered by a 997 cc, 4-cylinder, 4-stroke, DOHC engine, known for its smooth power delivery and comfortable riding position. This model was a significant entry in the large-displacement motorcycle market of its era, competing with other prominent Japanese manufacturers. Its classic styling and robust engineering made it a popular choice for riders seeking performance and reliability. This comprehensive Factory Service Manual (FSM) provides detailed information for the service and repair of your 1979-1980 Suzuki GS1000L. It covers essential maintenance procedures, troubleshooting guidance, and technical specifications necessary for keeping your motorcycle in optimal condition. Within its over 300 pages, you will find step-by-step instructions for engine overhauls, fuel system tuning, electrical system diagnostics, brake and suspension servicing, and much more. This manual is an indispensable resource for owners and technicians alike, ensuring proper maintenance and repair practices are followed. 🏷️ Basic Information Identification Make: Suzuki Model: GS1000L Year: 1979-1980 Category: Motorcycle Engine Type Identifier: 4-Cylinder, 4-Stroke, DOHC 👋 Introduction Market Position Segment: Standard Motorcycle / Cruiser Styling Target Audience: Owners and technicians of 1979-1980 Suzuki GS1000L motorcycles Competitive Analysis Era Competitors: Honda CB750, Kawasaki KZ1000, Yamaha XS1100 Key Features Vehicle Appeal: Powerful inline-four engine, comfortable riding position, classic styling Manual Benefit: Enables owners to perform professional-level maintenance and repairs, saving time and money compared to dealership service. 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Secondary Coverage: Maintenance, Troubleshooting, Diagnostics Page Count Estimated Pages: 300+ Manual Type Type: Factory Service Manual (FSM) Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, valve timing, piston/ring replacement, crankshaft inspection, cylinder head service Fuel System: Carburetor tuning (Mikuni VM), fuel pump, fuel lines, fuel tank service Ignition System: CDI ignition, spark plug specifications, ignition timing, coil testing Transmission: Clutch operation and adjustment, gearbox disassembly and reassembly, gear inspection Electrical System: Wiring diagrams, lighting system, charging system (alternator, rectifier/regulator), starter motor, battery service Brakes: Front and rear brake system maintenance, hydraulic lines, caliper service, master cylinder inspection, brake pad replacement Suspension And Steering: Front fork service (oil changes, seal replacement), rear shock absorber adjustment and replacement, steering head bearing service Cooling System: Air-cooled engine, cooling fins cleaning and inspection Exhaust System: Exhaust pipe inspection, muffler maintenance Frame And Bodywork: Chassis inspection, seat removal, fender maintenance, cosmetic component service Procedures Included Routine Maintenance: Oil changes, filter replacement, chain adjustment, lubrication points, tire pressure checks Troubleshooting: Diagnostic charts for common performance issues, electrical faults, starting problems Disassembly And Reassembly: Step-by-step guides for component removal and installation Adjustments: Carburetor synchronization, valve clearance adjustment, brake lever play, clutch cable free play Wiring Diagrams: Comprehensive electrical schematics for all systems Torque Specifications: Precise tightening torques for all critical fasteners Technical Depth Depth: Comprehensive (from basic maintenance to full engine rebuilds) 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable (OCR processed) Print Quality Quality: High resolution, clear diagrams and text Binding Type Binding: N/A (Digital Download) Paper Type Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: GS1000 Displacement: 997 cc (60.8 cu in) Bore X Stroke: 74.0 mm x 58.0 mm (2.91 in x 2.28 in) Compression Ratio: 8.2:1 Valve Train: DOHC, 2 valves per cylinder Cooling System: Air-cooled Performance Horsepower Claimed: 82 hp @ 8,000 rpm Torque Claimed: 77 Nm (57 lb-ft) @ 7,000 rpm Fuel System Carburetors: 4 x Mikuni VM26SS Fuel Capacity: 17.0 L (4.5 US gal) Lubrication System Type: Wet sump Oil Capacity With Filter: 3.4 L (3.6 US qt) 🔧 Transmission Standard Transmission Type: 5-speed constant mesh Final Drive: Chain Features Clutch Type: Wet multi-plate 📐 Dimensions Exterior Length: 2,215 mm (87.2 in) Width: 845 mm (33.3 in) Height: 1,195 mm (47.0 in) Wheelbase: 1,480 mm (58.3 in) Weights Dry Weight: 238 kg (525 lbs) Wet Weight: 255 kg (562 lbs) 🛡️ Safety Features Ratings Safety Systems: N/A (Motorcycle specific, primarily mechanical and rider dependent) Active Features Braking System: Dual front disc brakes, single rear disc brake Passive Features Lighting: Halogen headlight, taillight, turn signals 💡 Technology Features Infotainment Features: N/A (Classic motorcycle technology) Driver Assistance Features: N/A (Classic motorcycle technology) Connectivity Features: N/A (Classic motorcycle technology) 🔧 Maintenance Service Intervals Oil Change Interval: Every 4,000 km (2,500 miles) or 6 months Valve Adjustment Interval: Every 8,000 km (5,000 miles) Spark Plug Replacement: Every 12,000 km (7,500 miles) Fluid Specifications Engine Oil Type: SAE 20W-40 API SE (or equivalent) Brake Fluid Type: DOT 3 or DOT 4 hydraulic fluid Fork Oil Type: SAE 10W (refer to manual for exact specification and quantity) Known Issues Common Wear Items: Clutch plates, brake pads, fork seals, carburetor diaphragms (if applicable to specific models/years), electrical connectors due to age. Common Issues Starting Problems: Can...