The DR350M and DR350SM, produced in 1991, represent a versatile dual-sport motorcycle designed for both on-road and off-road excursions. Building on a reputation for reliable engineering, these models offer tractable power delivery and a robust design, making them a popular choice for riders seeking adaptable performance. The DR350 line is recognized for its value and capability, evolving from earlier successful models and contributing to a strong heritage in motorcycle manufacturing. This comprehensive service and repair manual provides detailed guidance for the maintenance, troubleshooting, and repair of your 1991 DR350M/SM. It covers all essential systems, including the engine, transmission, chassis, brakes, and electrical components, with step-by-step instructions for disassembly, reassembly, and adjustments. The manual is an invaluable resource for owners and technicians, offering diagnostic charts, special tool identification, and routine maintenance schedules to ensure optimal performance and longevity of the motorcycle. 🏷️ Basic Information Identification Make: Suzuki Model: DR350M / DR350SM Year: 1991 Product Name: Suzuki DR350M DR350SM 1991 Service Repair Manual PDF Download 👋 Introduction Market Position Segment: Dual-Sport / Enduro Motorcycle Competitive Analysis Competitors 1991: Honda XR series, Kawasaki KLR series, Yamaha XT series Key Features Vehicle Philosophy: Versatile performance for both on-road and off-road use, known for reliability and tractable power delivery. Manual Value Proposition Benefit To Owner: Empowers owners to perform detailed maintenance, diagnostics, and repairs, saving time and money while ensuring optimal vehicle performance and longevity. Digital Advantage: Instant access, easy navigation, searchable content, and no physical wear and tear compared to paper manuals. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Maintenance, Troubleshooting Page Count Estimated Pages: Extensive (typically 300+ pages for this era of service manual) Manual Type Type: Service & Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Engine overhaul, top-end rebuild, bottom-end procedures, valve adjustment, carburetor tuning, ignition system, cooling system (air-cooled nature considered), lubrication Transmission: Clutch service, gearbox inspection and repair, shift mechanism, lubrication Chassis: Frame inspection, swingarm and linkage service, suspension (forks, rear shock), steering head bearings Brakes: Hydraulic brake system (front and rear disc brakes), caliper service, master cylinder overhaul, brake pad replacement, bleeding procedures Electrical: Wiring diagrams, lighting system, charging system (stator, regulator/rectifier), ignition system components, battery service, starter system Fuel System: Fuel tank, fuel lines, carburetor service (cleaning, jetting, float adjustment), fuel petcock Wheels And Tires: Wheel bearing service, spoke adjustment (if applicable), tire pressure recommendations, tire replacement Bodywork And Trim: Panel removal and installation, seat service, graphics and decals Procedures Included Maintenance: Routine maintenance, oil changes, filter replacements, chain adjustment, spark plug service, air filter cleaning Troubleshooting: Diagnostic charts for common problems, symptom-based troubleshooting guides Repair: Step-by-step disassembly and reassembly instructions for all major components and systems Special Tools: Identification of required special tools for specific procedures Technical Depth Depth: Comprehensive (suitable for DIY enthusiasts and professional mechanics, covering routine maintenance to complete engine rebuilds and electrical system diagnostics) 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable (depending on scan quality) Print Quality Quality: Digital (high-resolution for clarity) Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, SOHC, Air-cooled Displacement: 346cc Bore X Stroke: 76.0 mm x 76.0 mm Compression Ratio: 9.5:1 Carburetor: Mikuni VM33SS (single) Ignition System: CDI (Capacitor Discharge Ignition) Performance Horsepower Approx: Approx. 30-32 HP (varies by market and tune) Torque Approx: Approx. 20-22 lb-ft (varies by market and tune) Fuel System Fuel Type: Unleaded gasoline Fuel Tank Capacity: Approx. 2.6 US gallons (10 Liters) Lubrication Oil Type: SAE 10W-40 API SE or SF motorcycle oil Oil Capacity: Approx. 1.9 US quarts (1.8 Liters) with filter change 🔧 Transmission Standard Transmission Type: 5-speed constant mesh Clutch Type: Wet multi-plate Features Final Drive: Chain drive Transmission Oil Type: API GL-1 SAE 80W Gear Oil (shared engine/transmission oil system typically, but manual will specify) 📐 Dimensions Exterior Length: Approx. 86.8 in (2205 mm) Width: Approx. 35.0 in (890 mm) Height: Approx. 48.4 in (1230 mm) Wheelbase: Approx. 56.7 in (1440 mm) Weights Dry Weight: Approx. 262 lbs (119 kg) Wet Weight: Approx. 282 lbs (128 kg) (with fluids) Wheels And Tires Front Tire Size: 80/100-21 48P (Spoke wheel) Rear Tire Size: 110/90-18 61P (Spoke wheel) Suspension Front Suspension Type: Telescopic, Coil Spring, Oil Dampened Rear Suspension Type: Swingarm Type, Monoshock (Remote Reservoir on SM) 🛡️ Safety Features Ratings Safety Standards: Compliant with prevailing motorcycle safety regulations of the era. Active Features Braking System: Hydraulic front and rear disc brakes for responsive stopping power. Passive Features Frame Construction: Sturdy steel frame designed for durability and handling stability. 💡 Technology Features Infotainment Infotainment System: N/A (Basic motorcycle instrumentation: speedometer, odometer, neutral indicator, high beam indicator). Driver Assistance Driver Assistance Systems: N/A Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 km...