HYOSUNG SF50 PRIMA Full Service & Repair Manual 1999-ONWARDS

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Tipo: Motorcycle

Proveedor:

SKU: 151051

Etiquetas: 1999 Hyosung Motorcycle Motorcycles PRIMA SF50

Variantes de producto

Descripción

The Hyosung SF50 Prima is a compact and lightweight scooter designed for efficient urban commuting and light recreational use. Produced from 1999 onwards, this model features a step-through frame, automatic transmission, and under-seat storage, embodying functional design principles common to scooters of its era. Its 2-stroke engine provides a nimble and responsive riding experience, making it a practical choice for navigating city streets. This comprehensive Full Service & Repair Workshop Manual provides detailed guidance for the maintenance and repair of your Hyosung SF50 Prima scooter. It covers all essential systems, including the 2-stroke engine, automatic transmission, chassis, brakes, and electrical components. With step-by-step procedures, troubleshooting advice, and technical specifications, this manual serves as an indispensable resource for professional mechanics, technicians, and advanced DIY enthusiasts aiming to ensure the optimal performance and longevity of their vehicle.

🏷️ Basic Information

Identification

Make:

Hyosung

Model:

SF50 Prima

Model Year Coverage Start:

Model Year Coverage End:

Onwards

Vehicle Type:

Scooter

Engine Type:

2-Stroke

👋 Introduction

Market Position

Niche:

Compact, lightweight scooter for urban commuting and light recreational use.

Competitive Analysis

Competitors:

Yamaha Jog, Honda Dio, Suzuki Address (models of similar displacement and era).

Key Features

Scooter Design:

Automatic transmission, step-through frame design, under-seat storage.

Manual Value Proposition

Completeness:

Factory-level detail, enabling DIY repairs and diagnostics for cost savings and vehicle longevity.

Accessibility:

Instant download, multi-device compatibility, and lifetime access make it a readily available resource.

📋 Manual Details

Coverage Areas

Manual Type:

Full Service & Repair Workshop Manual

Language:

English (Implied, based on product description language)

Format:

Digital Download (PDF)

Accessibility:

Printable, Multi-device compatible (Computer, Tablet, Smartphone)

Licensing:

Lifetime use, no expiry, no renewal fees

📖 Manual Coverage

Systems Covered

Engine:

Complete engine overhaul, tuning, carburetor, ignition system, cooling system (air-cooled), exhaust system.

Transmission:

Automatic transmission (CVT), clutch, variator, torque converter, gear reduction.

Chassis And Frame:

Frame inspection, fork assembly, rear suspension, steering system, bearings.

Wheels And Tires:

Wheel removal and installation, tire inspection, tire pressure, rim specifications.

Brakes:

Front and rear brake system diagnosis, maintenance, caliper service, brake fluid replacement, drum brake adjustment.

Electrical System:

Battery service, lighting system (headlight, taillight, turn signals), starter motor, charging system (stator, rectifier/regulator), wiring diagrams, fuses, switches.

Fuel System:

Fuel tank, fuel lines, fuel filter, carburetor disassembly and cleaning, jetting.

Bodywork And Trim:

Fairings, seat removal, storage compartment, plastic panel repairs.

Procedures Included

Maintenance:

Routine servicing, oil changes, air filter replacement, spark plug replacement, drive belt inspection/replacement, lubrication points, brake adjustments, coolant checks (if applicable, though typically air-cooled for this model).

Troubleshooting:

Diagnostic procedures for common running issues, electrical faults, starting problems, braking concerns.

Repair:

Step-by-step repair instructions for all major components and systems, including engine rebuilds, transmission servicing, suspension overhauls.

Assembly Disassembly:

Detailed procedures for taking apart and reassembling all vehicle components, supported by exploded views.

Technical Depth

Depth:

Comprehensive, covering basic maintenance to complete engine and transmission rebuilds. Includes detailed diagnostic procedures.

Visuals:

Hundreds of pages with detailed photos and diagrams, including exploded views.

Target Audience:

Professional Mechanics, Technicians, and advanced DIY enthusiasts.

📊 Manual Specifications

File Format

File Type:

Searchability:

Likely searchable text within the PDF for efficient information retrieval.

Print Quality

Printable:

Yes, individual pages or entire manual.

Binding Type

Binding:

Not Applicable (Digital)

Paper Type

Paper Quality:

Not Applicable (Digital)

⚙️ Engine Specifications

Primary Engine

Engine Code Designation:

Likely a Hyosung manufactured 50cc 2-stroke engine (specific code not provided in product info).

Displacement:

Approximately 49cc (standard for 50cc scooter class).

Bore X Stroke:

Refer to manual for exact specifications (typical for this class might be around 39mm x 41.4mm, but manual is definitive).

Cooling System:

Air-cooled.

Ignition System:

CDI (Capacitor Discharge Ignition).

Performance

Horsepower:

Typically 3.5 - 5.0 HP (varies by specific tuning and market regulations).

Torque:

Refer to manual for exact specifications.

Fuel System

Carburetor Model:

Likely a Keihin, Mikuni, or similar 16-19mm carburetor (specific model to be confirmed in manual).

Fuel Type:

Unleaded gasoline.

Oil Mixture:

Requires 2-stroke oil mixed with gasoline (typical 50:1 ratio, refer to manual).

🔧 Transmission

Standard

Transmission Type:

Automatic Continuously Variable Transmission (CVT).

Drive Belt:

V-belt drive for CVT.

Gear Reduction:

Planetary gear reduction within the transmission housing.

Features

Variator Operation:

Centrifugal variator adjusts gear ratio based on engine RPM.

Clutch Type:

Automatic centrifugal clutch.

📐 Dimensions

Exterior

Length:

Refer to manual for precise dimensions.

Width:

Refer to manual for precise dimensions.

Height:

Refer to manual for precise dimensions.

Weights

Dry Weight:

Approximately 80-90 kg (typical for this class).

Gross Vehicle Weight Rating:

Refer to manual for GVWR.

Wheels Tires

Front Tire Size:

Typically 120/70-10 or similar (manual confirmation needed).

Rear Tire Size:

Typically 130/70-10 or similar (manual confirmation needed).

Wheel Type:

Alloy or steel wheels, 10-inch diameter.

🛡️ Safety Features

Active Features

Braking System:

Front: Disc brake. Rear: Drum brake (typical configuration).

Passive Features

Lighting:

Headlight, taillight, brake light, turn signals.

Mirrors:

Handlebar-mounted rear-view mirrors.

💡 Technology Features

Infotainment

Instrument Panel:

Basic analog speedometer, fuel gauge (if equipped), indicator lights for turn signals, high beam, etc.

Driver Assistance

Safety Systems:

Limited to standard braking and lighting; no advanced electronic aids expected for this model era.

🔧 Maintenance

Service Intervals

Engine Oil Change:

Refer to manual. For 2-stroke, primary focus is 2-stroke oil replenishment and transmission oil checks.

Transmission Oil Change:

Refer to manual. Typically every 6,000 - 12,000 km or annually.

Drive Belt Inspection:

Inspect every 6,000 km, replace as needed based on wear.

Air Filter Cleaning:

Clean every 3,000 km, replace as needed.

Spark Plug Replacement:

Replace approximately every 5,000 - 10,000 km, or as per manual recommendation.

Fluid Specifications

Engine Oil:

API TC rated 2-stroke engine oil.

Transmission Fluid:

Gear Oil SAE 80 or 90 GL-III (confirm specific viscosity and type in manual).

Brake Fluid:

DOT 3 or DOT 4 brake fluid (confirm in manual).

Known Issues

Common Problems:

Carburetor fouling due to short trips, drive belt wear, aging electrical components, potential cooling fins clogging (air-cooled).

Tune Up Importance:

Regular tuning is crucial for optimal performance and longevity of the 2-stroke engine.

📚 Vehicle History

Brand Heritage

Manufacturer:

Hyosung Motors & Machinery Inc. (South Korea), known for motorcycles and scooters.

Model Evolution

Design Era:

Late 1990s to early 2000s design, focusing on functional urban mobility.

Production

Production Period:

Commenced around 1999, with ongoing production indicated by 'Onwards'.

🏆 Awards & Recognition

Recognitions

Awards Certifications:

No specific awards or certifications are mentioned in the product information.