Era:
The GS750 was a significant model for Suzuki in the mid-1970s, competing in the popular 750cc sportbike/touring segment.
Competition:
Competed directly with models like the Kawasaki KZ750, Honda CB750F, and Yamaha XS750.
Engine Layout:
DOHC, air-cooled inline-four cylinder engine.
Shaft Drive:
Utilized a shaft drive system for low-maintenance final drive, a premium feature at the time.
Suspension:
Telescopic front forks with adjustable air assist and dual rear shock absorbers.
Braking:
Typically featured a single disc brake up front and a drum brake at the rear for the 1976 model year.
Engine:
Complete engine disassembly, assembly, tuning, internal components, lubrication system, cooling system.
Fuel System:
Carburetor identification, tuning, overhaul, fuel pump, fuel lines, filters.
Ignition System:
Ignition timing, spark plugs, coils, points (if applicable), electronic ignition (if applicable).
Transmission:
Gearbox disassembly, assembly, gear selection mechanism, clutch operation, clutch plate replacement, transmission oil.
Drivetrain:
Final drive, shaft drive inspection, universal joints, rear differential (if applicable).
Brakes:
Front and rear brake systems, hydraulic lines, master cylinders, calipers, brake pads/shoes, brake fluid.
Suspension:
Front forks (telescopic, air assist if applicable), rear shock absorbers, swingarm, bearings.
Electrical System:
Wiring diagrams, lighting system, charging system (stator, regulator/rectifier), battery, starter motor, switches.
Chassis And Frame:
Frame inspection, steering head bearings, wheel bearings, center stand, side stand.
Bodywork And Trim:
Fender removal/installation, fuel tank, seat, fairings (if equipped), instrumentation.
Maintenance:
Routine service checks, oil changes, filter replacements, chain adjustment, valve clearance adjustments, spark plug service.
Troubleshooting:
Diagnostic flowcharts, symptom-based problem solving for common issues.
Repair:
Step-by-step disassembly and reassembly instructions for all major components and systems.
Overhaul:
Detailed procedures for engine, gearbox, carburetor, and brake system overhauls.
Specifications:
Torque specifications for all fasteners, clearances, fluid capacities, and electrical resistances.
Depth:
Comprehensive; covers from basic rider maintenance to complete engine rebuilds and system diagnostics.
Diagnostics:
Includes troubleshooting guides and diagnostic procedures for identifying and resolving mechanical and electrical faults.
Wiring Diagrams:
Detailed electrical schematics with component identification.
Configuration:
748cc, DOHC, air-cooled, inline-four cylinder
Bore X Stroke:
65.0 mm x 56.4 mm
Horsepower:
Approx. 70 HP @ 9,000 RPM (claimed)
Torque:
Approx. 45 lb-ft @ 7,000 RPM (claimed)
Carburetors:
Four Mikuni VM34SC constant-velocity carburetors
Fuel Type:
Unleaded gasoline (refer to manual for octane rating recommendations).
Oil Change:
Every 2,000-3,000 miles or 6 months (typical recommendation, refer to manual).
Valve Adjustment:
Every 4,000-6,000 miles (critical for DOHC engines, refer to manual for precise intervals).
Spark Plug Service:
Every 3,000-5,000 miles or as needed.
Engine Oil:
API SF or SG, SAE 10W-40 or 20W-50 (refer to manual for specific viscosity based on temperature).
Engine Oil Capacity:
Approx. 3.5 Liters (3.7 US qt) with filter change.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid (refer to manual for specific type).
Fork Oil:
Typically SAE 10W fork oil (refer to manual for exact weight and quantity per fork leg).
Final Drive Oil:
API GL-4 or GL-5, SAE 80W-90 gear oil (refer to manual).
Carburetor Sync:
Carburetors require regular synchronization for smooth running and optimal performance.
Valve Clearance:
Valve clearance can widen over time, leading to noisy operation and reduced performance if not adjusted.
Charging System:
Regulator/rectifier units can be a point of failure on older models; testing and replacement may be necessary.
Shaft Drive U Joints:
Periodic lubrication and inspection of universal joints are necessary to prevent wear.
Suzuki Motorcycles:
Suzuki's reputation for reliable and performance-oriented motorcycles was solidified by models like the GS series.
Gs Series Launch:
The GS750 was part of Suzuki's groundbreaking GS series, which introduced DOHC inline-four engines and shaft drive to a wider market.
Predecessors:
Evolved from earlier Suzuki two-stroke and smaller four-stroke models, showcasing a significant step into the large-displacement four-stroke market.
Production Years:
The GS750 was produced from 1977 to 1983, with the 1976 model year often referring to early production or a model year designation.
Manufacturing Location:
Japan
