Segment:
Dual-purpose (Dual Sport) motorcycle, popular for its versatility in on-road and off-road riding.
Competitors:
Competed against models like the Honda XR series, Kawasaki KLR series, and Yamaha XT series during its production run.
Features:
Known for its reliable air-cooled engine, capable suspension, and straightforward design, making it a practical and accessible dual-sport option.
Engine:
Detailed breakdown of the 348cc SOHC 4-stroke engine, including top-end (cylinder head, valves, camshaft), bottom-end (crankshaft, connecting rod, piston), lubrication system, cooling system (air-cooled), and exhaust system.
Fuel System:
Carburetor servicing (Mikuni BST33), fuel pump operation, fuel tank maintenance, fuel line inspection.
Transmission:
5-speed gearbox, clutch operation and adjustment, transmission oil change procedures, internal gear inspection and repair.
Drivetrain:
Chain drive maintenance, sprocket inspection, rear swingarm and linkage lubrication and adjustment.
Brakes:
Front and rear disc brake systems, hydraulic component servicing (master cylinder, caliper), brake pad replacement, brake fluid flush and bleeding procedures.
Suspension:
Front telescopic forks (including oil changes, seal replacement, and damping adjustment), rear monoshock suspension, spring preload and damping adjustments.
Electrical System:
Ignition system (CDI, spark plug), lighting system (headlight, taillight, turn signals), battery maintenance and testing, charging system (stator, rectifier/regulator), starter motor operation, wiring diagrams.
Chassis Frame:
Frame inspection, steering head bearing service, wheel bearing replacement, spoke tension adjustment.
Bodywork:
Body panel removal and installation, seat servicing, fender maintenance.
Maintenance:
Scheduled maintenance (oil changes, filter replacements, chain adjustment), pre-ride inspections, brake system checks, suspension adjustments.
Troubleshooting:
Diagnostic procedures for common problems (engine won't start, poor performance, electrical issues), symptom-based troubleshooting guides.
Repair:
Step-by-step instructions for disassembly, reassembly, and repair of all major vehicle components.
Diagnostics:
Detailed electrical troubleshooting using wiring diagrams, component testing procedures, common fault codes.
Rebuilds:
Complete engine and transmission rebuild instructions, including torque specifications and critical measurements.
Depth:
Comprehensive, covering everything from basic adjustments to complete engine and transmission overhauls. Suitable for home mechanics and professional technicians.
Type:
4-stroke, SOHC, 2-valve, Air-cooled
Bore X Stroke:
74.0 mm x 80.0 mm
Horsepower:
Approx. 28-30 HP (est. at crank)
Torque:
Approx. 23-25 lb-ft (est. at crank)
Carburetor:
Mikuni BST33, constant velocity
Fuel Tank Capacity:
10.0 L (2.6 US gal)
System:
CDI (Capacitor Discharge Ignition)
Oil Type:
SAE 10W-40 Motorcycle Oil (API SG or higher)
Oil Capacity:
1.8 L (1.9 US qt) with filter change
Safety Ratings:
Motorcycle safety is primarily dependent on rider skill and proper maintenance. No formal crash test ratings like automobiles.
Braking System:
Hydraulic disc brakes front and rear provide strong stopping power.
Suspension:
Long-travel suspension absorbs bumps and maintains tire contact for stability.
Lighting:
Standard headlight, taillight, and brake light for visibility.
Frame Construction:
Sturdy steel frame provides a stable riding platform.
Engine Oil Change:
Every 3,000 km (2,000 miles) or 6 months, whichever comes first.
Oil Filter Change:
Every 3,000 km (2,000 miles) or 6 months (with oil change).
Air Filter Cleaning:
Every 2,000 km (1,200 miles) or as needed based on riding conditions.
Spark Plug Inspection:
Every 6,000 km (4,000 miles).
Valve Clearance Check:
Every 12,000 km (7,500 miles).
Chain Lubrication Adjustment:
Every 1,000 km (600 miles) or as needed.
Engine Oil:
SAE 10W-40 Motorcycle Oil (API SG or higher)
Brake Fluid:
DOT 3 or DOT 4 Hydraulic Brake Fluid
Fork Oil:
Show Suzuki SF41 or equivalent (e.g., Bel-Ray SAE 5W or 10W, depending on desired damping).
Common Issues:
Potential for carburetor performance issues (clogging, jetting), rear shock absorber wear, and stator failure over time. The clutch can also wear with heavy use.
Heritage:
Suzuki has a long history of producing reliable and capable motorcycles, particularly in the off-road and dual-sport segments.
Evolution:
The DR350 platform was a popular series for Suzuki, evolving through various iterations and engine sizes. The 1990 DR350L represented an update to the line, often featuring improved suspension or styling compared to earlier models.
Production Years:
The DR350 model line was produced roughly from 1990 through the late 1990s.
Manufacturing Location:
Primarily Japan