Segment:
Single-cylinder, air-cooled, naked sportbike
Target Audience:
Enthusiasts, owners, mechanics seeking detailed repair and maintenance information
Competitors:
Kawasaki EN500, Honda CB650/CB750 (though different cylinder configurations), Suzuki GS550/GS750
Motorcycle Design:
Single-cylinder simplicity, classic styling, focused performance
Benefit:
Enables DIY maintenance and repair, saves on professional labor costs, enhances understanding of the motorcycle's mechanics
Uniqueness:
Factory-level detail for a specific, popular model year
Engine:
Complete engine disassembly, assembly, tuning, troubleshooting, lubrication system, cooling system (air-cooled)
Fuel System:
Carburetor (Mikuni VM Series) inspection, cleaning, adjustment, jetting, fuel tank, fuel lines
Ignition System:
CDI ignition, spark plugs, timing, troubleshooting
Transmission:
Clutch operation, transmission disassembly, assembly, inspection, lubrication
Frame And Suspension:
Frame inspection, front fork (telescopic) disassembly, servicing, rear suspension (monoshock), linkage lubrication and adjustment
Brakes:
Front and rear brake systems (disc brakes), caliper servicing, master cylinder servicing, fluid replacement, bleeding
Electrical System:
Wiring diagrams, lighting, instruments, starter system, charging system (alternator, battery), troubleshooting electrical faults
Exhaust System:
Exhaust pipe and muffler inspection, replacement
Wheels And Tires:
Wheel bearing inspection and replacement, tire pressure, tire wear inspection
Bodywork And Controls:
Handlebar, levers, cables, seat, fenders, fuel tank removal and installation
Routine Maintenance:
Oil changes, filter replacement, chain adjustment and lubrication, air filter cleaning/replacement, spark plug inspection and replacement, brake pad inspection, tire pressure checks
Troubleshooting:
Diagnosis and resolution of common engine performance issues, electrical problems, starting difficulties, braking issues
Major Repairs:
Engine rebuilds (top-end and bottom-end), transmission overhauls, carburetor overhauls, suspension rebuilds, brake system servicing
Specifications And Measurements:
Clearance specifications (valve, chain), torque values, fluid capacities, dimensional data
Depth:
Comprehensive (covering all aspects from basic maintenance to complete overhaul and diagnostics)
Visual Aids:
Detailed photos and exploded diagrams for step-by-step guidance
Engine Type:
Four-stroke, single-cylinder, OHC, 4-valve
Displacement:
595 cc (595 cubic centimeters)
Bore X Stroke:
97.0 mm x 80.0 mm
Cooling System:
Air-cooled
Horsepower:
Approx. 45-50 HP (at crankshaft, varies by region and tuning)
Torque:
Approx. 48-52 Nm (at crankshaft, varies by region and tuning)
Carburetor:
1 x Mikuni VM36SC (single slide carburetor)
Fuel Tank Capacity:
14 Liters (3.7 US gal)
Oil Capacity:
Approx. 2.4 Liters (with filter change)
Recommended Oil Viscosity:
10W-40 or 20W-50 (API SE or SF, JASO MA)
Instrumentation:
Analog speedometer, tachometer, odometer, trip meter, neutral indicator, high beam indicator, turn signal indicators
ABS:
Not applicable (ABS was not available on this model)
Electronic Aids:
None (mechanical focus, CDI ignition)
Oil Change Interval:
Every 3,000-5,000 km (1,800-3,000 miles) or 6 months
Valve Clearance Check:
Every 6,000-10,000 km (3,700-6,000 miles)
Chain Adjustment:
As needed, typically every 1,000-1,500 km (600-900 miles)
Engine Oil Spec:
Yamalube 4 (or equivalent motorcycle engine oil), SAE 10W-40 or 20W-50, API SE/SF, JASO MA
Brake Fluid Spec:
DOT 3 or DOT 4 (check manual for specific recommendation)
Fork Oil Spec:
Yamaha Fork Oil (or equivalent motorcycle fork oil), SAE 10W (check manual for specific viscosity and quantity)
Carburetor Issues:
Mikuni VM36 can be sensitive to dirt and require regular cleaning/adjustment; potential for diaphragm wear
Valve Train:
Valve clearances can drift, requiring periodic adjustment; potential for cam chain tensioner wear over time
Electrical:
Older wiring can degrade; CDI unit reliability can be a concern on very high mileage examples
Oil Leaks:
Common on older motorcycles, particularly around the engine case seals and valve cover
Suspension:
Fork seals can weep; rear monoshock damper may lose effectiveness with age
