Positioning:
The Suzuki RG500 Gamma was a highly competitive two-stroke racing homologation special for the road, known for its blistering performance and advanced technology for its era.
Competitors:
Key competitors in its class included Yamaha's RD500LC and Honda's NS400R, all targeting riders seeking high-performance, multi-cylinder two-stroke sportbikes.
Engine Configuration:
Liquid-cooled, 498cc, 2-stroke, 2x2-cylinder, rotary disc valve, 90-degree V-4 engine.
Performance Highlights:
Renowned for its power output and aggressive acceleration, directly derived from Suzuki's Grand Prix racing machines.
Owner Benefit:
Enables owners to perform professional-level maintenance, repairs, and diagnostics, saving significant costs compared to dealership service.
Engine:
Complete tear down and rebuild, combustion system, lubrication, cooling, fuel system, crankcase, piston, cylinder, crankshaft, balancer
Transmission:
Gearbox, clutch, transmission system, crankshaft/transmission components
Chassis:
Front wheel and steering system, rear wheel system, fenders, exhaust pipe, chassis, frame/body panels, wheels & tires
Electrical:
Alternator/starter clutch, battery/charging system, ignition system, electric starter, lights/meters/switches, wiring diagrams
Suspension:
Suspension (front and rear)
Fuel System:
Engine Fuel System, Fuel Injection System (if applicable to specific models/markets, otherwise Carburetion)
Bodywork:
Body & Fixtures, Frame/Body Panels
Maintenance:
Periodic checks & Adjustments, general maintenance procedures
Repair:
Complete tear down and rebuild, component-specific repairs
Diagnostics:
Troubleshooting, diagnostic procedures
Restoration:
Procedures suitable for refurbishing or restoring the motorcycle
Installation:
Engine removal and installation, component installations
Detail Level:
Comprehensive, covering all diagnostic and repair procedures, detailed illustrations, wiring schematics, torque specs
Target Audience:
Do-it-yourselfer and experienced mechanic
Engine Type:
Liquid-cooled, 2-stroke, 90-degree V4
Bore X Stroke:
56.0 x 50.5 mm
Fueling:
Mikuni VM26SS carburetors (typical configuration, manual covers carburetor system maintenance/tuning)
Horsepower:
Approx. 95 hp @ 9,500 rpm (claimed, may vary by market regulations)
Torque:
Approx. 7.0 kg-m (68.6 Nm; 50.6 lb-ft) @ 8,000 rpm (claimed)
Carburetor Type:
Four Mikuni VM26SS
System:
Suzuki Super Scavenge (TSCC) two-stroke oil injection system
Crash Test Results:
N/A (Motorcycle, not subject to automotive crash testing standards)
Braking System:
Dual front disc brakes, single rear disc brake (specification details in manual)
Lighting:
Full lighting system with headlight, taillight, brake lights, turn signals (details in manual)
Features:
N/A (Focus on performance and mechanicals, no modern infotainment systems).
Features:
N/A (No electronic rider aids typical of modern motorcycles).
Reed Valves:
Rotary disc valve intake system, a key performance feature for two-stroke engines of this era.
Cooling Tech:
Advanced liquid cooling system with a large radiator and fan for consistent operating temperatures.
Frame:
Aluminum twin-spar frame derived from racing technology for rigidity and light weight.
Oil Change:
Refer to manual for specific intervals based on usage. Two-stroke oil injection system requires regular topping up.
Spark Plugs:
Refer to manual for replacement intervals and correct types (likely NGK or Denso).
Chain Lubrication:
Frequent lubrication and adjustment recommended, especially under hard riding conditions.
Engine Oil:
Suzuki Super Scavenge two-stroke oil or equivalent high-quality two-stroke injector oil (manual will specify exact type).
Coolant:
Ethylene glycol-based antifreeze mixture with distilled water (manual will specify ratio and type).
Transmission Oil:
Refer to manual for viscosity and specification, typically a gear oil.
Carburetor Sync:
Can require frequent synchronization due to complexity of the V4 setup. Manual covers procedure.
Power Valve Maintenance:
Mechanical power valves require cleaning and proper function for optimal performance; manual details their maintenance.
Engine Seals:
Age-related degradation of engine seals can lead to air leaks or coolant leaks; thorough inspection is crucial.
Maintenance Schedule Detail
Initial Service:
Refer to manual for break-in procedures and initial service recommendations.
Heritage:
Suzuki has a rich racing heritage, particularly in Grand Prix motorcycle racing, which heavily influenced the RG500 Gamma's design and performance.
Evolution:
The RG500 Gamma was the road-going homologation version of Suzuki's highly successful RGΓ (Gamma) square-four two-stroke Grand Prix race bikes, designed to meet homologation rules for racing eligibility.
Manufacturing Location:
Japan
Significance:
Represented the pinnacle of two-stroke road bike technology from Suzuki, offering near-GP performance for the discerning enthusiast.
