Segment:
Lightweight sportbike, popular in the 125cc class for its performance and handling.
Target Audience:
Enthusiasts and owners of the Suzuki RG125 Gamma seeking to perform maintenance, repairs, or modifications.
Competitors:
Competed with other 125cc two-stroke sportbikes of the era, such as Yamaha TZR125, Honda NSR125, and Aprilia RS125.
Engine Type:
Characterized by its two-stroke, liquid-cooled engine, delivering spirited performance for its displacement.
Design:
Emphasized sporty ergonomics and sharp styling typical of Suzuki's performance motorcycles.
Covered Years:
1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
Type:
Workshop Service Repair Manual
Engine:
Comprehensive coverage of engine disassembly, assembly, maintenance, and repair.
Fuel System:
Details on carburetor systems, fuel delivery, and related components.
Ignition System:
Information on ignition timing, spark plugs, and electronic ignition components.
Cooling System:
Coverage for liquid-cooled engine thermal management, radiator, and coolant circulation.
Transmission:
In-depth procedures for gearbox removal, inspection, repair, and adjustment.
Clutch:
Details on clutch operation, adjustment, and replacement procedures.
Chassis:
Frame, swingarm, steering head bearing, and related structural components.
Suspension:
Front fork (telescopic) and rear shock absorber servicing, including oil levels and seal replacement.
Brakes:
Front and rear brake systems, including disc brake caliper servicing, pad replacement, fluid bleeding, and master cylinder overhaul.
Electrical System:
Wiring diagrams, battery, charging system (alternator/stator), lighting, and starter system troubleshooting.
Bodywork:
Fairings, seat, fuel tank, fenders, and other body panel removal and installation.
Maintenance:
Scheduled maintenance, fluid changes, lubrication, filter replacements, and general upkeep.
Troubleshooting:
Systematic diagnostic procedures for identifying and resolving common faults and issues.
Disassembly:
Step-by-step instructions for taking apart all major vehicle components.
Assembly:
Detailed guidance for reassembling components with correct procedures and torque specifications.
Repair:
Instructions for repairing or replacing worn or damaged parts across all systems.
Adjustment:
Precise procedures for adjusting clutch, throttle cables, brake levers, and engine parameters.
Installation:
Guidance for installing new or replacement parts and accessories.
Depth:
Comprehensive 'bumper to bumper' coverage, suitable for both professional mechanics and DIY enthusiasts.
Illustrations:
Includes detailed illustrations, exploded diagrams, drawings, and photographs to aid understanding.
Special Tools:
References specific service tool numbers and provides guidance on their use.
Specifications:
Provides service data, including tightening torques, wear limits, and factory specifications.
Type:
Liquid-cooled, 2-stroke, single-cylinder
Bore X Stroke:
54.0 mm x 54.0 mm (typical for this model range, specific figures may vary slightly by year)
Horsepower:
Approximately 28-32 HP (at crankshaft, figures vary by market regulations and specific year)
Torque:
Approximate torque figures not readily available, but characterized by strong mid-range power delivery.
Carburetor:
Likely a Mikuni VM series carburetor (e.g., VM28 or similar), requiring precise adjustment.
Fuel Type:
Unleaded gasoline with appropriate 2-stroke oil pre-mix or automatic oil injection system.
Oil Type:
Specific 2-stroke engine oil as recommended by Suzuki (e.g., API TC rated).
Ignition System:
CDI (Capacitor Discharge Ignition)
Safety Certifications:
N/A (Motorcycle safety standards vary by region and era, not detailed in product info).
Braking System:
Front disc brake, rear drum or disc brake (depending on year/market).
Lighting:
Headlight, taillight, brake light, turn signals.
Frame Construction:
Steel frame, designed for rigidity and handling.
Oil Change Interval:
Frequent oil changes for the 2-stroke engine are crucial; refer to manual for specific recommendations.
Spark Plug Replacement:
Regular inspection and replacement as per manual recommendations, dependent on usage.
Chain Lubrication:
Frequent lubrication and adjustment of the drive chain are essential for longevity.
Fork Oil Change:
Recommended at intervals of 12,000-24,000 km or as specified in the manual for optimal suspension performance.
Coolant Type:
Ethylene glycol-based antifreeze and water mixture (50:50 ratio typical).
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid (check manual for specific recommendation).
Transmission Oil:
N/A (Separate transmission oil not typically used in 2-stroke motorcycles; gearbox lubrication is often achieved through engine oil splash or a dedicated gearbox oil, which needs manual verification).
Carburetor Cleaning:
2-stroke carburetors can be prone to clogging if the bike sits for extended periods or if fuel quality is poor.
Piston Ring Wear:
As with many high-performance 2-stroke engines, piston and ring wear can occur over time and mileage, requiring periodic inspection and replacement.
Exhaust Flapper Valve:
Some models may have an exhaust power valve that can stick or require cleaning/adjustment for optimal performance.
Electrical Connections:
Older motorcycles can develop issues with corroded or loose electrical connections, impacting various systems.
