Segment:
Lightweight dual-sport/scrambler motorcycle.
Target Audience:
Enthusiasts seeking to maintain, repair, or restore their 1974 Suzuki RV125.
Competitors:
Honda SL125, Yamaha DT125, Kawasaki G5.
Dv Model:
The RV125 was positioned as a more off-road capable and rugged alternative to traditional street bikes, featuring higher ground clearance, longer travel suspension, and often knobby tires.
Manual Value:
Provides critical factory-level information for accurate and efficient servicing, essential for preserving the integrity and performance of a classic motorcycle.
Primary Coverage:
Comprehensive repair, maintenance, and diagnostic procedures for the Suzuki RV125 (1974 model year).
Secondary Coverage:
Includes adjustments, disassembly, assembly, and troubleshooting for all major mechanical and electrical systems.
Estimated Pages:
Likely in the range of 200-400 pages, typical for a comprehensive factory service manual of this era.
Type:
Factory Service Repair Manual
Format:
Likely a printed manual. Digital formats like PDF may be available from third-party sellers if scanned.
Engine:
Complete engine disassembly, assembly, inspection, tuning, and component specifications (carburetor, ignition, lubrication).
Transmission:
Gearbox inspection, maintenance, disassembly, and assembly procedures.
Fuel System:
Carburetor service, fuel tank and petcock maintenance, fuel line routing, and troubleshooting.
Electrical System:
Ignition system (points, coil, spark plug), lighting, battery, wiring diagrams, and component testing.
Chassis Suspension:
Front fork service, rear shock absorber maintenance, steering system, and wheel bearing procedures.
Brakes:
Drum brake inspection, adjustment, and component servicing.
Bodywork:
Fender, seat, tank, and other body panel removal and installation procedures.
Maintenance:
Routine checks, lubrication, filter replacement, spark plug replacement, chain adjustment.
Repair:
Component overhaul, part replacement, seal and gasket replacement, internal engine repairs.
Troubleshooting:
Diagnostic charts, symptom-based problem identification, and corrective actions.
Adjustments:
Carburetor idle speed and mixture, brake lever free play, clutch engagement, ignition timing.
Depth:
Comprehensive. Covers everything from basic fluid changes and adjustments to full engine rebuilds and electrical system diagnostics.
File Format:
N/A (Assumed printed, if digital PDF, specify high-resolution, searchable text)
Print Quality:
N/A (Assumed high-quality factory original print)
Binding Type:
N/A (Assumed professionally bound, typical for factory manuals)
Paper Type:
N/A (Assumed durable, semi-gloss paper stock typical for workshop manuals)
Engine Type:
Two-stroke, single-cylinder, air-cooled.
Displacement:
124 cc (approx. 7.57 cubic inches).
Bore X Stroke:
Specifications typically found within the manual, likely around 56.0 mm x 50.6 mm.
Compression Ratio:
Specifications typically found within the manual, likely around 6.5:1 - 7.0:1.
Horsepower:
Estimated 10-12 HP at approximately 7,000-8,000 RPM (exact figures in manual).
Torque:
Specifications typically found within the manual.
Carburetor Model:
Likely a Mikuni VM series single carburetor (e.g., VM24SS, exact model in manual).
Fuel Type:
Unleaded gasoline, mixed with 2-stroke oil (ratio specified in manual, typically 20:1 or 50:1).
Oil Mixture:
Manual will specify the correct oil-to-fuel ratio and recommended oil type.
Ignition System:
CDI (Capacitor Discharge Ignition) or conventional points and coil system (manual will detail).
Lubrication Type:
Premix or oil injection system (manual will confirm and detail).
Overall Length:
Specifications available in manual, generally compact for its class.
Overall Width:
Specifications available in manual.
Overall Height:
Specifications available in manual.
Wheelbase:
Specifications available in manual, crucial for handling characteristics.
Dry Weight:
Approx. 100-105 kg (220-231 lbs) (exact figure in manual).
Gross Vehicle Weight Rating:
Specifications available in manual.
Fuel Tank Capacity:
Approximately 6.0 - 7.0 liters (1.6 - 1.8 US gal) (exact figure in manual).
Tire Size Front:
Typically 2.50-19 or similar (exact specification in manual).
Tire Size Rear:
Typically 3.00-18 or similar (exact specification in manual).
Wheel Type:
Spoked wheels.
Safety Ratings:
N/A - Not applicable to motorcycles of this era in the same way as cars.
Braking System:
Front and rear drum brakes.
Lighting:
Headlight, taillight, brake light, turn signals (if equipped).
Frame Construction:
Steel frame, designed for durability and off-road use.
Infotainment System:
N/A - No infotainment system present; basic analog instrumentation.
Driver Assistance Features:
N/A - No driver assistance features.
Connectivity Features:
N/A - No electronic connectivity features.
Instrument Cluster:
Analog speedometer, odometer, and neutral indicator light. Possibly a high-beam indicator.
Oil Change Interval:
Manual will specify for gearbox oil, typically at 3,000-5,000 km or annually. Engine oil is mixed with fuel.
Spark Plug Service:
Manual will specify inspection/replacement intervals, often around 3,000-6,000 km.
Chain Lubrication Adjustment:
Recommended every 500-1000 km or after riding in wet conditions.
Air Filter Cleaning:
Manual will specify intervals, typically every 3,000-5,000 km, or more frequently in dusty conditions.
Gearbox Oil Type:
Manual will specify API GL-4 or GL-5 gear oil, viscosity grade like 80W-90.
Brake Fluid Type:
N/A (Drum brakes typically do not use hydraulic fluid).
2 Stroke Oil Type:
Manual will recommend a high-quality JASO FB or FD rated 2-stroke oil, or specific Suzuki recommendations.
Carburetor Clogging:
Common in older carbureted engines, especially if fuel is left stagnant. Requires regular cleaning and proper fuel storage.
Ignition Points Wear:
Points and condensers can wear over time, requiring adjustment or replacement for proper ignition timing.
Two Stroke Engine Carbon Buildup:
Can occur in exhaust ports and piston crown, requiring periodic decarbonization.
Suspension Seals:
Front fork seals can degrade with age, leading to oil leaks. Rear shock absorbers may also lose damping effectiveness.
Brand Focus:
Suzuki has a long history in motorcycle manufacturing, known for innovative designs and performance in various classes.
Rv Series:
The RV series was a specific line of dual-purpose motorcycles from Suzuki, designed for versatility across on-road and off-road conditions. The RV125 was part of this popular series in the 1970s.
Production Period:
The RV125 was produced through much of the 1970s, with the 1974 model representing an early iteration.
Manufacturing Location:
Japan.
