Market Segment:
Vintage Japanese performance motorcycle, known for its smooth triple engine.
Key Competitors:
Kawasaki H2, Yamaha XS750 (later models), Honda CB750 Four (though different engine configuration).
Engine Configuration:
Water-cooled, 3-cylinder, 2-stroke engine – a unique selling proposition for its era.
Performance Reputation:
Smooth power delivery and respectable acceleration for its time.
Nickname:
'The Water Buffalo' due to its size and cooling system.
Engine Overhaul:
Complete disassembly, inspection, repair, and reassembly of the 2-stroke, 3-cylinder engine.
Fuel System:
Carburetor tuning, jetting, float adjustment, fuel line maintenance, and fuel tank servicing.
Ignition System:
Spark plug specifications, timing adjustments, ignition coil testing, and stator/points maintenance.
Transmission And Clutch:
Gearbox disassembly/reassembly, clutch adjustment, clutch plate replacement, and shift linkage service.
Brakes:
Front and rear brake system inspection, hydraulic fluid replacement, brake shoe/pad replacement, and caliper/master cylinder servicing.
Suspension:
Front fork oil change, seal replacement, rear shock absorber inspection, and swingarm bearing maintenance.
Electrical System:
Wiring diagrams, lighting maintenance, battery charging system, horn, and starter motor troubleshooting.
Cooling System:
Water pump inspection, thermostat operation, and coolant specifications (though often oil-injected for 2-stroke).
Frame And Bodywork:
Component removal/installation, frame inspection, and basic body panel repair guidance.
Routine Maintenance:
Oil changes (for gearbox and 2-stroke injection), chain adjustment, lubrication points, and filter replacements.
Troubleshooting Guides:
Diagnostic procedures for common starting, running, and electrical issues.
Rebuild Procedures:
Detailed steps for engine and transmission rebuilds.
Adjustment Procedures:
Carburetor, clutch, brake, and ignition timing adjustments.
Depth Level:
Comprehensive, covering routine maintenance to complete engine and transmission overhauls.
File Format:
Physical print (as indicated for a sales business)
Print Quality:
High-quality print, ensuring clear diagrams and text.
Binding Type:
Professional binding (e.g., perfect bound, spiral bound for workshop use).
Paper Type:
Durable, workshop-grade paper.
Engine Type:
739cc, air/water-cooled, 2-stroke, 3-cylinder, piston port intake.
Bore X Stroke:
70 mm x 64 mm
Valves Per Cylinder:
2 (ports)
Horsepower @ Rpm:
67 hp @ 6,500 rpm (approx.)
Torque @ Rpm:
75 Nm @ 5,500 rpm (approx.)
Carburetor Type:
3 x Mikuni VM32SC (Constant Velocity carburetors).
Fuel Delivery:
Pre-mixed fuel and oil (or separate oil injection system on some variants/years).
Fuel Type:
Unleaded gasoline (recommended Octane Rating: 91+).
Transmission Type:
5-speed, constant mesh, sequential gearbox.
Clutch Type:
Wet, multi-plate, cable-operated.
Final Drive:
Chain drive.
Gearbox Oil Type:
Suzuki Gear Oil API GL-4, SAE 80W-90 or equivalent.
Gearbox Oil Capacity:
2.0 liters (approx.)
Safety Standards:
Industry standards of the 1970s, not subject to modern crash ratings.
Braking System:
Front: Disc brake. Rear: Drum brake.
Lighting:
Halogen headlight, LED (modern replacement) tail/brake light, turn signals.
Frame Construction:
Steel double-cradle frame.
Infotainment System:
N/A (vintage motorcycle, no electronic infotainment systems).
Driver Assistance Features:
N/A (vintage motorcycle).
Connectivity Features:
N/A (vintage motorcycle).
Oil Change Gearbox:
Every 3,000 miles (or as specified in manual).
Spark Plug Replacement:
Every 6,000 miles or as needed based on condition.
Chain Lubrication Adjustment:
Every 500 miles or after riding in wet conditions.
2 Stroke Oil Type:
High-quality 2-stroke motorcycle oil, TCW-3 or JASO FD/FB rated.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Coolant Type:
Suzuki Genuine Coolant or equivalent ethylene glycol-based coolant (50/50 mix with distilled water).
Engine Vibration:
Characteristic of larger 2-strokes, though the GT750 was relatively smooth.
Carburetor Gumming:
Common with older fuel, requiring regular cleaning and synchronization.
Water Seals Leaks:
Radiator hoses and water pump seals can degrade over time.
Electrical Connections:
Corrosion and loose connections can cause intermittent electrical problems.
Clutch Slippage:
Can occur with worn clutch plates or improper adjustment.
Brand Origin:
Suzuki Motor Corporation, Japan, founded in 1909.
Gt Series Introduction:
The GT750 was part of Suzuki's GT (Grand Touring) line, launched in late 1971 for the 1972 model year.
Key Innovations:
Water cooling and a 3-cylinder 2-stroke configuration for a large motorcycle.
Production Years:
1972-1977
Manufacturing Location:
Japan
