Vehicle Segment:
Dual-sport / Enduro motorcycle.
Target Audience:
Riders seeking a capable off-road and on-road capable motorcycle for adventure and trail riding.
Key Competitors:
Honda XR series, Kawasaki KLR series, Yamaha XT series, KTM EXC series.
Durability:
Known for its robust construction and reliability, especially in off-road conditions.
Versatility:
Adaptable for both trail riding and moderate street use, appealing to a broad range of riders.
Simplicity:
Relatively simple mechanical design, making it easier to maintain and repair with the right documentation.
Engine:
Complete disassembly, inspection, and reassembly of the 348cc SOHC 4-stroke engine.
Cooling System:
Air cooling system maintenance and component checks.
Fuel System:
Carburetor (Mikuni BST33) overhaul, cleaning, adjustment, and fuel delivery system.
Ignition System:
CDI ignition system, spark plug specifications, troubleshooting.
Exhaust System:
Exhaust pipe and muffler maintenance, inspection for leaks.
Transmission:
6-speed sequential gearbox, clutch operation, maintenance, and repair.
Drivetrain:
Chain drive system, sprocket inspection and replacement, lubrication.
Suspension:
Front telescopic forks (including Showa or similar) and rear monoshock (linkage type) service, adjustments, and seal replacement.
Brakes:
Front and rear disc brake systems, hydraulic fluid, pad replacement, caliper service, and bleeding procedures.
Wheels Tires:
Wheel bearing service, spoke tension adjustment, tire mounting and balancing, recommended tire pressures.
Electrical System:
Wiring diagrams, battery maintenance, lighting system, starter motor, and charging system (alternator/stator).
Frame Bodywork:
Frame inspection, fairings, seat, fuel tank removal and installation, body panel alignment.
Maintenance:
Routine service checks, oil changes, filter replacements, chain lubrication and adjustment, bolt torque specifications.
Troubleshooting:
Diagnostic guides for common starting, running, and electrical issues, often with flowcharts.
Repair:
Detailed step-by-step instructions for component removal, replacement, and adjustment across all systems.
Rebuilds:
Comprehensive guidance for engine and transmission overhauls, including critical component measurements and tolerances.
Wiring Diagrams:
Detailed electrical schematics for easy diagnosis and repair of electrical faults.
Diagnostic Capabilities:
Advanced diagnostic procedures, including engine timing checks and electrical system testing.
Rebuild Complexity:
Suitable for intermediate to expert mechanics, covering complete engine and transmission rebuilds.
Special Tools:
Identification of any specialized tools required for specific repair procedures.
Digital Format:
PDF (Portable Document Format), often searchable and printable.
Reproduction Quality:
High-resolution scans for clear text and legible diagrams/illustrations.
Print Binding:
Coil-bound or saddle-stitched for lay-flat use in a workshop environment.
Print Paper Quality:
Durable, often glossy or semi-gloss paper suitable for workshop conditions.
Engine Type:
4-stroke, SOHC, air-cooled
Displacement:
348 cc (cubic centimeters)
Bore X Stroke:
82.0 mm x 66.0 mm
Compression Ratio:
9.5:1 (typical, may vary slightly by year/model)
Valvetrain:
SOHC (Single Overhead Camshaft), 2 valves per cylinder
Horsepower Output:
Approx. 28-30 HP @ 7500 RPM (estimated, varies by specific model and tuning)
Torque Output:
Approx. 22-24 lb-ft @ 6000 RPM (estimated)
Carburetor Type:
Mikuni BST33 (slide type, constant velocity)
Fuel Capacity:
3.2 US gallons (approx. 12.1 liters)
Safety Features Focus:
Motorcycle safety focuses on rider control and predictable handling; no formal crash ratings.
Braking System:
Hydraulic disc brakes front and rear for effective stopping power.
Suspension Stability:
Well-tuned suspension contributes to stability and rider control.
Lighting:
Headlight, taillight, and turn signals for visibility.
Oil Change Interval:
Every 3,000 km (1,800 miles) or 6 months, whichever comes first (typical recommendation).
Air Filter Cleaning:
Every 1,000 km (600 miles) or as needed, especially in dusty conditions.
Spark Plug Replacement:
Check every 6,000 km (3,600 miles), replace as needed based on condition.
Chain Lubrication Adjustment:
Lubricate every 500 km (300 miles), adjust slack at the same time.
Engine Oil Type:
API SE, SF, or SG classification, SAE 10W-40 viscosity.
Engine Oil Capacity:
1.7 L (1.8 US qt) without filter change, 1.9 L (2.0 US qt) with filter change.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Cam Chain Tensioner:
Some models may benefit from an aftermarket manual cam chain tensioner to prevent noise or premature wear.
Carburetor Jetting:
Proper carburetor jetting is crucial for optimal performance, especially with aftermarket exhaust or air filter modifications.
Suspension Seals:
Like many bikes of this era, fork seals can degrade over time and require replacement.
Countershaft Seal:
Leaking countershaft seal is a relatively common issue requiring replacement.
Manufacturer:
Suzuki Motor Corporation, a Japanese manufacturer with a long history in motorcycles and automobiles.
Introduction Year:
The DR350 line was introduced in 1990, succeeding earlier DR models.
Variants:
Key variants include the kick-start only 'S' model, the electric-start 'SE' model, and the 'SP' dual-sport model with upgraded suspension and bodywork.
Discontinuation:
Production of the DR350 ceased in the early 2000s, but it remains a popular used model.
Manufacturing Location:
Primarily Japan, with potential for some assembly in other global locations.
Model Reputation:
Highly regarded for its reliability, affordability, and dual-purpose capability within the motorcycle community.
Owner Satisfaction:
Consistently receives positive ratings from owners for its durability and low cost of ownership.
Emissions Compliance:
Meets applicable emissions standards for its model years, details can be found in specific model documentation.
