Vehicle Class:
Lightweight Sportbike / Two-Stroke Sportbike
Target Audience:
Enthusiasts, owners, and independent mechanics seeking in-depth knowledge of the RG250
Contemporaries:
Competed against other 250cc two-stroke sportbikes of its era
Engine Type:
High-performance two-stroke parallel-twin engine
Chassis Design:
Sportbike ergonomics and styling for its time
Manual Value Proposition:
Comprehensive, lifelong access to professional repair data
Primary Coverage:
Full Service & Repair
Secondary Coverage:
Troubleshooting & Servicing
Estimated Pages:
Hundreds of pages (specific count not provided, but described as extensive)
Type:
Factory Service Manual / Workshop Manual
Accessibility:
Instant Download
Device Compatibility:
Computers (Windows & MAC), Tablets, Smartphones
Usage License:
Lifetime Use, Unlimited Devices
Updates:
No Expiry Dates, No Renewal Fees
Engine Mechanical:
Comprehensive engine overhaul, disassembly, assembly, and tuning procedures
Engine Management:
Carburetor tuning, ignition system diagnosis and repair
Fuel System:
Fuel tank, fuel lines, fuel pump, and carburetor maintenance and repair
Cooling System:
Radiator, water pump, coolant flow, and thermostat diagnostics
Exhaust System:
Exhaust manifold, pipes, and muffler inspection and replacement
Transmission:
Gearbox inspection, maintenance, and repair procedures
Clutch:
Clutch assembly inspection, adjustment, and replacement
Suspension:
Front forks, rear shock absorbers, linkages, and adjustment procedures
Steering:
Handlebar, steering head bearings, and linkage maintenance
Brakes:
Front and rear brake system servicing, including hydraulics and pad replacement
Electrical System:
Wiring diagrams, component testing, charging system, ignition system, lighting
Chassis And Bodywork:
Frame inspection, fairings, seating, and general body component repair
Routine Maintenance:
Oil changes, filter replacement, chain adjustment, spark plug servicing, brake checks
Troubleshooting:
Systematic diagnostic guides for common and complex issues
Repair Procedures:
Step-by-step instructions for component removal, repair, and installation
Overhaul:
Complete engine and component rebuild procedures
Specifications And Tolerances:
Detailed technical data for all adjustable and replaceable components
Wiring Diagrams:
Detailed electrical schematics for easy diagnosis and repair
Level Of Detail:
Professional Mechanic/Technician Level
Diagnostic Capability:
Advanced diagnostics for all major systems
Illustrations:
Hundreds of detailed photos & diagrams, exploded views
Instruction Style:
Step-by-step instructions
Engine Type:
Two-stroke, parallel-twin, reed-valve induction
Bore X Stroke:
54.0 mm x 54.0 mm
Compression Ratio:
6.7:1 (approximate, often varies slightly by market)
Cooling System:
Liquid-cooled
Horsepower:
Approx. 45-47 hp @ 9,000 rpm (specific output varied slightly by market and tuning)
Torque:
Approx. 23.5 lb-ft @ 8,000 rpm (specific output varied slightly by market)
Carburetion:
Dual Mikuni VM26SS carburetors
Fuel Type:
Unleaded gasoline (premium recommended), requires 2-stroke oil mixture
Ignition Type:
CDI (Capacitor Discharge Ignition)
Oil System:
Suzuki Full Enclosed (SFE) oil injection system
Crash Test Data:
N/A (Motorcycle safety standards of the era were different; focus on chassis and braking)
Braking System:
Front: Dual Disc Brakes, Rear: Disc Brake
Suspension Features:
Telescopic front forks, Linkage type rear suspension (Monoshock or Twin Shock variants may exist, manual covers specific models)
Lighting:
Halogen headlamp, taillight, turn signals
Oil Change Interval:
Refer to manual for specific mileage/time intervals, typically every 3000-5000 km for engine oil
Chain Adjustment Interval:
Check every 1000 km, adjust as needed
Spark Plug Replacement:
Refer to manual, typically every 5000-10000 km depending on plug type
Coolant Change:
Refer to manual, typically every 2 years or 10,000-20,000 km
Engine Oil Type:
2-stroke engine oil meeting API TC or JASO FD specification (specified in manual)
Coolant Type:
Ethylene glycol-based antifreeze coolant, typically 50/50 mix with distilled water
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid (refer to manual for specific type and change interval)
Transmission Oil Type:
Refer to manual; often a specific gear oil or SAE 80/90 gear oil
Common Wear Items:
Piston rings, cylinders, reed valves (typical for high-performance 2-strokes), clutch plates, crank seals
Carburetor Issues:
Can be prone to clogging if fuel is not fresh, requires regular cleaning and synchronization
Electrical Gremlins:
As with many bikes of this era, aging wiring harnesses and connectors can cause intermittent issues
Cooling System Maintenance:
Regular flushing and inspection of radiator and coolant passages is crucial for longevity
