Model Segment:
Supersport / Hyperbike
Intended User:
Enthusiast riders, track day participants, performance-oriented road riders.
Key Competitors 2006 2007:
Yamaha YZF-R6, Kawasaki Ninja ZX-6R, Honda CBR600RR, Ducati 749/999 (though slightly different class).
Performance Focus:
Designed for maximum power-to-weight ratio and agile handling, making it a track-day favorite.
Technological Advancements:
Represents Suzuki's commitment to inline-four engine technology and advanced chassis design for its era.
Engine Mechanical:
Complete engine disassembly, inspection, repair, and reassembly including cylinder head, pistons, crankshaft, camshafts, valve train, lubrication system, and cooling system.
Fuel System:
Fuel injection system (EFI) diagnostics, injector service, throttle body inspection and cleaning, fuel pump operation, and fuel pressure testing.
Ignition System:
Ignition system components, coil testing, spark plug specifications, ignition timing, and electronic ignition control unit (ECU) diagnostics.
Transmission And Drivetrain:
Clutch operation and adjustment, gearbox inspection, gear shift mechanism, final drive chain and sprockets maintenance, and bearing checks.
Suspension:
Front fork disassembly, servicing, and adjustment (compression, rebound, preload); rear shock absorber inspection and replacement; linkage and bearing maintenance.
Brakes:
Brake caliper inspection, pad replacement, rotor resurfacing/replacement, brake fluid bleeding procedures, master cylinder service, and ABS system diagnostics (if equipped).
Electrical System:
Wiring diagrams, lighting system, charging system (alternator, regulator/rectifier), starting system (starter motor, battery), instrumentation, sensors, and ECU troubleshooting.
Chassis And Frame:
Frame inspection, swingarm removal and installation, steering head bearings, wheel bearing service, and general chassis component checks.
Bodywork And Fairings:
Fairing removal and installation procedures, seat assembly, fuel tank removal, and general body component servicing.
Routine Maintenance:
Oil and filter changes, air filter cleaning/replacement, chain adjustment and lubrication, spark plug checks, brake fluid level checks, and coolant level checks.
Troubleshooting:
Diagnostic flowcharts for common starting, running, electrical, and performance issues based on symptoms.
Component Replacement:
Detailed step-by-step instructions for replacing major components like exhaust systems, battery, tires, and control cables.
Rebuilding Procedures:
Comprehensive guides for engine internal rebuilds, including torque specifications, clearances, and assembly sequences.
Calibration And Adjustment:
Valve clearance adjustments, throttle position sensor (TPS) calibration, idle speed settings, and suspension sag adjustment.
Diagnostic Capabilities:
Advanced diagnostics for EFI system faults, sensor readings, and error code interpretation (if applicable for the era).
Repair Scope:
Covers everything from basic maintenance to complete engine and transmission overhauls, including specialized tools required.
Diagrams And Illustrations:
High-quality exploded view diagrams and clear procedural illustrations for most repair and maintenance tasks.
Engine Type:
4-stroke, Liquid-cooled, DOHC, 16-valve Inline-4
Displacement:
749 cc (45.7 cu. in.)
Bore X Stroke:
72.0 mm x 46.0 mm (2.83 in. x 1.81 in.)
Compression Ratio:
12.5:1
Horsepower Approx:
135.1 hp (99.3 kW) @ 12,000 rpm (Rear Wheel)
Torque Approx:
61.7 lb-ft (83.7 Nm) @ 10,500 rpm (Rear Wheel)
Fuel Delivery:
Electronic Fuel Injection (EFI) with Twin Fuel Injectors per cylinder
Fuel Type:
Unleaded gasoline, Octane rating 91 or higher (96 RON or higher)
Oil Type Recommendation:
SAE 10W-40, API SG+, JASO MA certified motorcycle oil.
Coolant Type:
Suzuki Long Life Coolant (or equivalent ethylene glycol-based antifreeze with distilled water, 50/50 mix).
Transmission Type:
Constant mesh, 6-speed, return type
Clutch Type:
Wet, multi-plate, cable operated
Gear Ratios:
Provided within manual, typical ratios: 1st: 2.750, 2nd: 2.000, 3rd: 1.700, 4th: 1.450, 5th: 1.273, 6th: 1.125
Final Drive:
RK525SH (or equivalent) O-ring sealed chain, 15T front sprocket, 47T rear sprocket.
Overall Length:
Approx. 2,030 mm (79.9 in.)
Overall Width:
Approx. 715 mm (28.1 in.)
Overall Height:
Approx. 1,135 mm (44.7 in.)
Wheelbase:
Approx. 1,405 mm (55.3 in.)
Ground Clearance:
Approx. 130 mm (5.1 in.)
Dry Weight:
Approx. 163 kg (359 lbs)
Curb Weight:
Approx. 190 kg (419 lbs) (fully fueled)
Front Tire Size:
120/70ZR17 M/C (58W) tubeless
Rear Tire Size:
180/55ZR17 M/C (73W) tubeless
Wheelbase Type:
Cast aluminum alloy
Fuel Tank Capacity:
17.0 L (4.5 US gal; 3.7 Imp gal)
Safety Features Era:
Focus on chassis rigidity, responsive braking, and rider ergonomics for control. ABS was generally not standard or available on this model.
Braking System:
Dual 320mm petal-disc front brakes with 4-piston calipers, Single 220mm petal-disc rear brake with 2-piston caliper.
Suspension Design:
Front: Inverted telescopic, coil spring, oil damped. Rear: Link type, coil spring, oil damped, spring preload and rebound damping adjustable.
Frame Construction:
Aluminum alloy twin-spar frame, designed for high rigidity and light weight.
Instrumentation:
Digital LCD speedometer, tachometer, odometer, trip meters, clock, fuel gauge, and indicator lights. Backlit for night visibility.
ABS Availability:
ABS was not a standard feature on the 2006-2007 GSX-R750, and was rarely an option, making it a pure, unassisted braking experience.
Diagnostic Port:
Likely features a diagnostic connector for basic ECU readouts or requires specialized Suzuki diagnostic tools for advanced troubleshooting.
Oil And Filter Change:
Every 6,000 km (3,700 miles) or 6 months, whichever comes first. (Refer to manual for specific conditions).
Air Filter Inspection:
Inspect every 6,000 km (3,700 miles), clean or replace as needed. Replace every 18,000 km (11,200 miles).
Spark Plug Replacement:
Replace every 12,000 km (7,500 miles) or 12 months.
Valve Clearance Check:
Check every 24,000 km (15,000 miles).
Chain Lubrication:
Lubricate every 1,000 km (600 miles) or after riding in rain/wet conditions.
Chain Adjustment:
Adjust chain slack to 20-30 mm (0.79-1.18 in.) every 1,000 km (600 miles).
Engine Oil Capacity:
3.4 L (3.6 US qt) without filter change; 3.6 L (3.8 US qt) with filter change.
Coolant Capacity:
Approx. 1.8 L (1.9 US qt)
Fork Oil Type And Volume:
SAE 10W fork oil; 432 ml (14.6 US oz) per fork leg. (Refer to manual for precise specification).
Common Wear Items:
Clutch plates, chain and sprockets, fork seals, wheel bearings, and brake pads due to high-performance use.
Potential Electrical Issues:
Regulator/rectifier failure (common across many sportbikes of this era), battery charging issues.
Engine Considerations:
Proper and timely maintenance is critical to prevent issues with the high-strung inline-four engine. Valve clearances and oil changes are paramount.
Suzuki Motorcycle Legacy:
Suzuki has a long and storied history in motorcycle racing and performance, particularly with its GSX-R line, which revolutionized the supersport category.
Gsx R750 Lineage:
The GSX-R750 has been a benchmark in the 750cc class since its inception, evolving through multiple generations to incorporate technological advancements and performance improvements.
K6 K7 Generation:
The 2006-2007 (K6/K7) models represent a significant update, featuring a more compact engine, revised chassis, and improved aerodynamics, building upon the success of previous generations.
Manufacturing Location:
Primarily Japan, but components may be sourced globally.
