Category:
Lightweight scooter, often used for recreational purposes, short-distance commuting, and entry-level riders.
Target Audience:
Owners and technicians of TGB Hornet scooters, seeking detailed information for maintenance, repair, and troubleshooting.
Competitors:
Comparable to other 50cc and 90cc scooters from brands like Kymco, SYM, Yamaha (e.g., Jog), Honda (e.g., Dio), and Aprilia.
Manual Value Proposition:
Provides professional-level repair information in an accessible digital format, empowering owners to perform their own maintenance and repairs, saving costs and increasing vehicle longevity.
Vehicle Strengths:
Known for simplicity, affordability, and suitability for urban environments. The 50cc and 90cc variants offer different power levels for various rider needs.
Engine:
Complete engine overhaul, including disassembly, inspection, assembly, tuning, and specific component diagnostics (pistons, rings, cylinder, crankshaft, bearings, seals, valves).
Fuel System:
Carburetor systems (disassembly, cleaning, adjustment, jetting), fuel pump, fuel lines, fuel filters, fuel tank maintenance.
Cooling System:
Air cooling system maintenance, fan operation (if applicable), component checks.
Ignition System:
CDI unit, stator, ignition coil, spark plug, wiring diagrams, troubleshooting for spark issues.
Transmission:
Automatic transmission (CVT - Continuously Variable Transmission), clutch system (drive and driven pulleys), belt inspection and replacement, gear reduction unit service.
Chassis And Frame:
Frame inspection, front fork and steering assembly, rear suspension (shock absorbers, swingarm), wheel bearing maintenance, bearing replacement.
Brakes:
Front and rear brake systems (drum or disc, depending on specific model variant), brake lever/pedal, brake calipers/drums, brake shoes/pads, brake fluid replacement, bleeding procedures, adjustment.
Electrical System:
Wiring diagrams, lighting systems (headlight, taillight, turn signals), horn, starter system (if electric start equipped), battery maintenance, fuses, electrical component testing.
Bodywork And Trim:
Panel removal and installation, seat, fenders, fairings, handlebars, grips, mirrors, decals.
Wheels And Tires:
Tire inspection, pressure recommendations, wheel removal and installation, valve stem maintenance.
Routine Maintenance:
Oil changes, filter replacements (air, fuel), spark plug checks, chain lubrication (if applicable), general inspection and lubrication points.
Troubleshooting:
Diagnostic flowcharts for common problems, symptom-based troubleshooting guides (e.g., no start, poor performance, strange noises).
Repair Procedures:
Step-by-step instructions for all major component repairs, from minor adjustments to complete engine rebuilds and system overhauls.
Diagnostics:
Detailed diagnostic steps for electrical and mechanical systems, component testing methods.
Specifications And Data:
Torque specifications for fasteners, engine clearances, valve timings, fluid capacities, electrical system voltages, tire pressures.
Wiring Diagrams:
Comprehensive electrical system schematics for accurate troubleshooting and repair.
Depth:
Comprehensive, covering everything from basic owner maintenance to advanced mechanical and electrical repairs typically performed in a professional workshop.
Type:
Air-cooled, two-stroke, single-cylinder petrol engine (typical for this class of scooter).
Displacement 50Cc:
Approximately 49.2 cc
Displacement 90Cc:
Approximately 85 cc - 90 cc (specific displacement varies by exact TGB model code).
Horsepower 50Cc:
Typically in the range of 3.5 - 5.5 HP, depending on tuning and regulatory limits.
Horsepower 90Cc:
Typically in the range of 6.0 - 8.5 HP, offering noticeably more performance than the 50cc version.
Torque Characteristics:
Designed for low-end torque delivery, suitable for city riding and acceleration from a standstill.
Carburetor Type:
Mikuni, Keihin, or similar, typically a downdraft type with automatic choke. Specific model and size will vary.
Fuel Type:
Unleaded Petrol (Gasoline)
Fuel Delivery:
Gravity feed from fuel tank to carburetor, sometimes with an electric or vacuum-operated fuel petcock.
System:
Automatic oil injection (oil-cooled engines typically premix fuel and oil at the pump, or have separate oil reservoir). Two-stroke oil required.
Wheelbase:
Varies by specific model, but typically around 1200-1300 mm (47-51 inches).
Length:
Varies by specific model, but typically around 1700-1800 mm (67-71 inches).
Width:
Varies by specific model, typically around 650-700 mm (26-28 inches) at the handlebars.
Height:
Varies by specific model, typically around 1050-1150 mm (41-45 inches) at the handlebars.
Dry Weight:
Typically in the range of 80-95 kg (176-209 lbs), depending on the specific variant and included equipment.
Gross Vehicle Weight Rating:
Not specified, but would be higher than dry weight to account for rider and cargo.
Oil Change Engine:
Typically every 1,000 - 2,000 km (600-1200 miles) for the transmission oil. Engine oil is not applicable for 2-stroke, as it uses 2-stroke oil mixed with fuel or injected.
Air Filter Cleaning:
Check every 500 km (300 miles), clean or replace as needed. More frequent cleaning in dusty conditions.
Spark Plug Inspection:
Inspect every 1,000 km (600 miles). Replace as needed based on condition and gap.
Cvt Belt Inspection:
Inspect every 3,000 - 5,000 km (1800-3000 miles). Replace as recommended by manual or if showing wear.
Brake Fluid Flush:
Replace brake fluid every 2 years or as per manual, approximately every 10,000 km (6000 miles).
Transmission Oil:
Gear oil for reduction gears: typically SAE 80W-90 or similar API GL-3/GL-4 specification. Manual will provide exact type and capacity.
Brake Fluid:
DOT 3 or DOT 4 brake fluid (check manual for specific recommendation).
Two Stroke Oil:
High-quality 2-stroke scooter oil, JASO FD or higher specification. Manual will advise on specific grades.
Carburetor Fouling:
Common in small 2-stroke engines due to oil residue, leading to starting or running issues. Regular cleaning is key.
Cvt Belt Wear:
The drive belt can wear out over time, leading to slippage, loss of acceleration, and potential failure. Regular inspection and replacement are essential.
Electrical Connections:
Corrosion or loose connections in wiring harness can cause intermittent electrical issues.
Cooling System Efficiency:
Air-cooled engines rely on airflow; ensuring cooling fins are clean and free of debris is important for preventing overheating.
Manufacturer:
TGB (Taiwan Golden Bee) is a Taiwanese manufacturer known for scooters, ATVs, and quads.
Hornet Lineage:
The Hornet model line is a staple in TGB's scooter offerings, evolving over the years with minor updates to styling, engine tuning, and features, but maintaining its core design philosophy.
Manufacturing Location:
Taiwan (primary manufacturing location for TGB vehicles).
Production Years General:
TGB has produced scooters in the 50cc and 90cc classes for many years, with the Hornet being a consistent model within their range.
