Segment:
Dual-sport motorcycle, known for its versatility and reliability in both on-road and off-road applications
Competitors:
Yamaha XT500/XT600, Honda XR600R/Transalp, Kawasaki KLR650
Design:
Robust air-cooled engine, simple yet durable construction, long-travel suspension, comfortable riding position
Purpose:
Adventure touring, commuting, off-road riding, general utility
Engine:
Complete overhaul, tuning, diagnostics, lubrication, cooling system, fuel system (carburetor), exhaust system, engine management (ignition)
Transmission:
Clutch, gearbox, shift mechanism, lubrication, disassembly and assembly
Chassis:
Frame, suspension (front forks, rear shock absorber), steering system, wheels, spokes, bearings
Brakes:
Front and rear brake systems, hydraulic lines, master cylinders, calipers, brake pads, rotor maintenance
Electrical:
Ignition system, lighting, charging system (stator, regulator/rectifier), starting system (starter motor, battery), wiring diagrams, troubleshooting electrical faults
Bodywork:
Body panels, seat, fuel tank, fenders, handlebars, controls, decals
Maintenance:
Routine inspections, oil changes, filter replacements, chain adjustment, spark plug replacement, valve clearance adjustment, brake fluid flush
Repair:
Engine rebuild, transmission repair, carburetor overhaul, suspension rebuild, brake system repair, electrical component replacement
Troubleshooting:
Diagnostic procedures for common issues, fault finding, symptom-based troubleshooting guides
Torque Specifications:
Torque settings for all critical fasteners and components
Depth:
Detailed, step-by-step instructions suitable for home mechanics and professional technicians
Type:
4-stroke, SOHC, 4-valve, single-cylinder, air-cooled
Displacement:
644 cc (39.3 cu in)
Bore X Stroke:
100.0 mm x 82.0 mm (3.94 in x 3.23 in)
Horsepower:
Approx. 46 hp (34 kW) @ 6,400 rpm (spec varies)
Torque:
Approx. 37 lb-ft (50 Nm) @ 4,500 rpm (spec varies)
Carburetor:
Mikuni BST40, 40mm CV carburetor
Fuel Type:
Unleaded gasoline, octane rating 87 or higher recommended
Oil Capacity:
2.1 L (2.2 US qt, 1.8 Imp qt) with filter change
Oil Type:
SAE 10W-40 API SG or SH, JASO MA
System:
Digital CDI (Capacitor Discharge Ignition)
Oil Change Interval:
Every 3,000 km (1,800 miles) or 6 months, whichever comes first
Oil Filter Replacement Interval:
Every 3,000 km (1,800 miles) or at every oil change
Air Filter Cleaning Interval:
Every 3,000 km (1,800 miles), clean and re-oil
Spark Plug Replacement Interval:
Every 6,000 km (3,600 miles) or as needed
Valve Clearance Check Interval:
Every 6,000 km (3,600 miles)
Chain Lubrication Interval:
Every 1,000 km (600 miles) or after riding in wet conditions
Brake Fluid:
DOT 3 or DOT 4
Coolant:
N/A (Air-cooled engine)
Common Problems:
Carburetor adjustment can be finicky, some vibration at higher RPMs, potential wear on suspension components over time, clutch wear with heavy use.
Diagnostic Tips:
Refer to the manual for specific troubleshooting steps for hard starting, poor acceleration, or electrical gremlins. Carburetor cleaning and jetting are common maintenance items.
Legacy:
Suzuki has a long history of producing reliable and capable motorcycles, particularly in the dual-sport and off-road segments.
Predecessors:
The DR650 lineage began with earlier models like the DR500 and DR600, evolving to incorporate modern features and improved performance.
Updates:
The 1999 model represents an established iteration of the DR650, having received incremental updates in the years prior, including the switch to a 650cc engine and improvements to suspension and ergonomics.
Manufacturing Location:
Japan
Production Years:
The DR650 series has been in continuous production since the mid-1980s, with the DR650SEX being a specific variant within that family.