1987 Suzuki GSXR 750 Manual

The 1987 Suzuki GSXR 750 is a legendary sport motorcycle featuring a 749cc liquid-cooled four-stroke inline-four engine, aluminum frame, full fairing, and advanced suspension components. This manual covers maintenance procedures, specifications, troubleshooting, and repair guidelines for proper operation and longevity of your GSXR 750.

1. Specifications 2. Maintenance Schedule 3. Engine System 4. Fuel System 5. Electrical System 6. Chassis & Suspension 7. Braking System 8. Troubleshooting 9. Safety Information 10. Warranty & Service

Specifications

Technical specifications for the 1987 Suzuki GSXR 750.

Component	Specification
Engine Type	749cc, 4-stroke, liquid-cooled, DOHC, inline-four
Bore x Stroke	70.0 mm x 48.7 mm
Compression Ratio	10.5:1
Fuel System	Mikuni BST31SS carburetors
Ignition System	Transistorized electronic ignition
Transmission	6-speed constant mesh
Frame	Aluminum box-section
Suspension Front	41mm telescopic forks, adjustable
Suspension Rear	Full Floater mono-shock, adjustable
Brakes Front	Dual disc, 2-piston calipers
Brakes Rear	Single disc, 1-piston caliper
Tires Front	110/80V17
Tires Rear	140/70V18
Dry Weight	179 kg (395 lbs)

Maintenance Schedule

Regular maintenance intervals for optimal performance.

Engine Oil Change: Every 3,000 miles or 6 months
Oil Filter Replacement: Every other oil change
Air Filter Cleaning: Every 3,000 miles
Spark Plug Replacement: Every 7,500 miles
Valve Clearance Check: Every 15,000 miles
Chain Adjustment: Every 500 miles
Brake Fluid Change: Every 2 years
Coolant Replacement: Every 2 years

WARNING! Always use genuine Suzuki parts and recommended fluids for maintenance.

Engine System

Engine maintenance and service procedures.

Oil Change: Drain plug located underside of engine sump
Valve Adjustment: Requires special tools and technical expertise
Cooling System: Check coolant level in expansion tank when cold
Compression Test: Should read 150-170 psi across all cylinders
Timing Chain: Automatic tensioner requires periodic inspection

CAUTION! Engine components operate at high temperatures; allow to cool before servicing.

Fuel System

Carburetor and fuel delivery system maintenance.

Carburetor Synchronization: Required every 7,500 miles using vacuum gauges
Fuel Filter: Replace every 15,000 miles
Fuel Tank: Capacity 18 liters (4.8 US gallons)
Fuel Type: Premium unleaded (91 octane or higher)
Pilot Screws: Factory setting 2.5 turns out from lightly seated

Electrical System

Battery, charging, and ignition system information.

Battery: 12V 10Ah, maintain fluid level, keep terminals clean.

Charging System: Three-phase alternator, output 300W at 5000 rpm.

Ignition: Electronic advance, no points to adjust.

Fuses: Main fuse 30A, accessory fuses 10A/15A in fuse box under seat.

Lights: Headlight 60/55W, brake light 21/5W, turn signals 21W.

Chassis & Suspension

Frame, suspension adjustment, and wheel maintenance.

Front Fork Oil: Change every 15,000 miles or 2 years
Steering Head Bearings: Check for play every 7,500 miles
Swingarm Pivot: Lubricate every 15,000 miles
Wheel Bearings: Inspect during tire changes
Tire Pressure: 32 psi front, 36 psi rear (cold)

Tip: Always use a motorcycle stand when working on wheels or suspension.

Braking System

Brake maintenance and service procedures.

Brake Pads: Replace when worn to 1mm thickness
Brake Discs: Minimum thickness 4.0mm front, 5.0mm rear
Brake Fluid: DOT 4, change every 2 years
Caliper Service: Clean and lubricate sliding pins annually
Brake Lines: Inspect for cracks or damage regularly

WARNING! Brake fluid is hygroscopic; always use fresh fluid from sealed container.

Troubleshooting

Common issues and solutions for the GSXR 750.

Symptom	Possible Cause	Corrective Action
Hard starting	Weak battery, dirty carbs	Charge/test battery, clean carburetors
Poor idle	Vacuum leak, sync needed	Check vacuum lines, synchronize carbs
Overheating	Low coolant, stuck thermostat	Check coolant level, test thermostat
Brake drag	Stuck caliper, contaminated fluid	Clean calipers, flush brake fluid
Electrical issues	Bad connections, failing regulator	Check grounds, test charging system

Note: Complex electrical issues may require professional diagnosis.

Safety Information

Important safety precautions for operation and maintenance.

Always wear appropriate protective gear including helmet, gloves, and riding jacket. Never operate motorcycle under influence of alcohol or drugs. Perform pre-ride inspection of tires, brakes, lights, and controls. Keep hands and clothing away from moving parts during maintenance.

CAUTION! Motorcycle contains hazardous materials including battery acid, engine oil, and brake fluid. Dispose of properly.

Warranty & Service

Original warranty information and service contacts.

1987 Suzuki GSXR 750 came with 12-month unlimited mileage warranty. For service assistance, contact authorized Suzuki dealerships. Genuine Suzuki parts ensure proper fit and performance. Technical service bulletins available through Suzuki dealer network.