Motorcycle Segment:
Hyperbike / Sportbike
Key Selling Points 1987:
Powerful 1000cc engine, advanced 'Genesis' DOHC design, sport-touring capabilities, aerodynamic styling, innovative frame technology.
Key Competitors:
Suzuki GSX-R1100, Kawasaki Ninja ZX-10, Honda CBR1000F
Genesis Engine Technology:
Yamaha's forward-canted cylinder arrangement for a lower center of gravity and improved mass centralization.
Frame Design:
Lightweight aluminum alloy twin-spar frame for rigidity and handling.
Aerodynamics:
Full fairing design contributing to wind protection and high-speed stability.
Service Manual Coverage:
Engine, Fuel System, Cooling System, Lubrication System, Ignition System, Electrical System, Chassis, Suspension, Brakes, Steering, Bodywork, Troubleshooting, Specifications, Maintenance
Owner Manual Coverage:
Operating instructions, Maintenance schedule, Controls and features, Riding tips, Storage, Specifications
Service Manual Pages:
Approximately 300-400 pages (estimated, typical for the era and scope)
Owner Manual Pages:
Approximately 50-100 pages (estimated)
Combined Set Type:
Service Manual & Owner's Manual
Engine Systems:
DOHC 4-valve per cylinder inline-four, compression ratios, valve clearance, timing chain, piston and ring inspection, cylinder honing, crankshaft and bearing service, oil pump operation and service, cooling system, radiator, water pump, thermostat, oil cooler
Fuel System:
Carburetor settings (Mikuni BS36), jetting, float bowl adjustment, fuel pump, fuel filter, fuel tank maintenance
Ignition System:
CDI ignition, spark plug types and gaps, ignition coil testing, timing adjustments, pickup coil service
Electrical System:
Wiring diagrams, battery maintenance, charging system (alternator/stator, regulator/rectifier), starter motor, lighting system (headlight, tail light, turn signals), instrument cluster functions, fuses and relays
Chassis Systems:
Frame inspection, swingarm pivot, steering head bearing maintenance, wheel bearing service
Suspension Systems:
Front telescopic forks (adjustable damping and preload on some models), rear monoshock (linkage system, spring preload and rebound damping adjustments), fork oil types and levels, seal replacement
Brake Systems:
Hydraulic front and rear disc brakes, caliper service, master cylinder overhaul, brake fluid specifications (DOT 3/4), pad replacement, rotor inspection, bleeding procedures
Steering System:
Handlebar removal and installation, steering stop service
Bodywork And Trim:
Fairing removal and installation, seat, fuel tank, fenders, emblems, mirrors
Maintenance Procedures:
Oil changes, filter replacement, air filter cleaning/replacement, spark plug replacement, chain adjustment and lubrication, brake adjustments, coolant flush and replacement, battery checks, tire pressure checks, general lubrication points
Troubleshooting Guides:
Diagnostic flowcharts for common starting issues, running problems, electrical faults, braking concerns, and suspension performance
Repair Procedures:
Engine disassembly and reassembly, transmission overhaul, carburetor synchronization and overhaul, clutch service, fork seal replacement, shock absorber servicing, brake caliper rebuild, electrical component testing and replacement
Diagnostic Procedures:
Compression testing, leak-down testing, electrical system voltage and resistance checks, carburetor flow testing
Performance Tuning:
Carburetor jetting recommendations, ignition timing adjustments (if applicable), suspension setup guidelines
Depth Of Coverage:
Comprehensive: Covers basic maintenance to complete engine and chassis rebuilds, including detailed diagnostic procedures and specifications.
Diagnostic Capability:
Advanced: Provides information for diagnosing complex issues using specifications and troubleshooting charts.
Rebuild Scope:
Full rebuilds: Includes detailed instructions for dismantling, inspecting, and reassembling major components.
Engine Type:
Liquid-cooled, four-stroke, DOHC, inline-four cylinder
Displacement:
988 cc (60.3 cubic inches)
Bore X Stroke:
73.0 mm x 58.0 mm (2.87 in x 2.28 in)
Compression Ratio:
10.2:1
Valve Train:
DOHC, 4 valves per cylinder
Power Delivery:
135 hp @ 9000 rpm (approximate, may vary slightly by market/spec)
Torque:
106 Nm (78 lb-ft) @ 7500 rpm (approximate)
Fuel Delivery:
4 x Mikuni BS36 constant velocity carburetors
Fuel Type:
Unleaded gasoline (91 octane or higher recommended)
Fuel Capacity:
16.0 liters (4.2 US gal)
Cooling Method:
Liquid-cooled
Oil Type:
API SG, SAE 10W-40 motorcycle oil
Oil Capacity:
3.4 liters (3.6 US qt) with filter change
Oil Change Interval:
Every 4,000 km (2,500 miles) or 6 months, whichever comes first.
Oil Filter Change Interval:
Every 8,000 km (5,000 miles) or 12 months, coinciding with oil changes.
Air Filter Service:
Inspect every 4,000 km (2,500 miles), clean or replace as needed.
Spark Plug Replacement:
Every 8,000 km (5,000 miles) or as needed based on inspection.
Chain Lubrication Inspection:
Every 1,000 km (600 miles) or after riding in wet conditions.
Brake Fluid Type:
DOT 3 or DOT 4
Coolant Type:
Ethylene glycol based antifreeze (50% mixture with distilled water)
Fork Oil Type:
SAE 10W (check manual for specific viscosity and quantity)
Common Wear Items:
Fork seals, steering head bearings, swingarm bearings, and carburetor diaphragm deterioration over time.
Electrical Aging:
Aging electrical connectors and wiring can lead to intermittent faults; regulator/rectifier can be a failure point.
Carburetor Issues:
Carburetors may require periodic cleaning, synchronization, and adjustment due to age and fuel quality.
