Target Audience:
Owners of TGB Hornet 50 and 90 ATVs seeking to perform maintenance, repairs, or restoration.
Value Proposition:
Provides detailed technical guidance to empower owners to maintain their ATVs effectively, reducing reliance on expensive professional services.
Differentiation:
Offers specific documentation for TGB models, which can be harder to find than manuals for more mainstream brands, catering to a niche but dedicated user base.
Comprehensiveness:
Hundreds of pages covering nearly all aspects of the vehicle, from routine checks to major overhauls.
Table Of Contents:
Includes a detailed table of contents for easy navigation and information retrieval.
Engine:
Complete engine overhaul, including disassembly, inspection, assembly, tuning, and troubleshooting for both 50cc and 90cc variants.
Transmission:
Automatic CVT (Continuously Variable Transmission) system coverage, including belt inspection, clutch and variator maintenance, and gearbox lubrication.
Fuel System:
Carburetor service, fuel pump operation, fuel lines, and fuel tank maintenance for both models.
Ignition System:
CDI ignition system diagnosis, spark plug service, stator and coil testing, and wiring diagrams.
Electrical System:
Battery maintenance, charging system (stator/regulator), lighting circuits (headlights, taillights, brake lights), horn, and starter motor troubleshooting.
Suspension:
Front and rear suspension component inspection, shock absorber service, and adjustments.
Brakes:
Front and rear brake system service, including brake pad replacement, caliper maintenance, brake line bleeding, and drum brake adjustment (if applicable).
Steering:
Handlebar and steering column maintenance, tie rod end inspection, and alignment checks.
Cooling System:
Air-cooled engine specifications and maintenance procedures (if applicable, often basic for smaller displacement ATVs).
Frame And Chassis:
Frame integrity checks, welding inspection points, and general chassis component maintenance.
Bodywork And Plastics:
Removal and installation procedures for body panels, fenders, and other plastic components.
Routine Maintenance:
Oil changes, filter replacements, chain lubrication and adjustment, tire pressure checks, and general inspection points.
Troubleshooting:
Diagnostic procedures for common problems, including no-start conditions, poor performance, and electrical faults.
Rebuilds:
Detailed step-by-step instructions for engine and transmission rebuilds.
Adjustments:
Carburetor idle and mixture adjustments, throttle cable adjustment, brake lever free play adjustment.
Part Replacement:
Instructions for replacing common wear items such as spark plugs, air filters, drive belts, brake pads, and batteries.
Wiring Diagrams:
Comprehensive electrical schematics for all major systems, aiding in diagnosis and repair.
Depth:
Comprehensive coverage for both basic user maintenance and in-depth mechanical repairs. Suitable for both DIY enthusiasts and professional mechanics.
Searchability:
Likely searchable text (standard for well-produced PDF manuals), allowing quick access to specific information.
Printability:
Printable, allowing users to create hard copies for workshop use.
Image Resolution:
High-resolution images and diagrams for clarity in repair procedures.
Binding:
Not applicable for PDF format; digital document.
Paper Type:
Not applicable for PDF format; digital document.
Engine Type 50:
Typically a single-cylinder, two-stroke or four-stroke air-cooled engine for the 50cc model.
Engine Type 90:
Likely a single-cylinder, two-stroke or four-stroke air-cooled engine with a slightly larger displacement for the 90cc model.
Displacement 50:
Approximately 49.4 cc for the 50cc model.
Displacement 90:
Approximately 89.4 cc for the 90cc model.
Bore X Stroke 50:
Specifics would be detailed in the manual, but typical for 49.4cc engines.
Bore X Stroke 90:
Specifics would be detailed in the manual, but typical for 89.4cc engines.
Horsepower 50:
Typically in the range of 4-7 HP for a 50cc ATV.
Horsepower 90:
Typically in the range of 6-10 HP for an 89.4cc ATV.
Carburetor Type:
Likely a single carburetor (e.g., Keihin or Mikuni type) with specific jetting and adjustment procedures detailed in the manual.
Fuel Requirement:
Standard unleaded gasoline (octane rating to be specified in the manual).
Oil Mixture Ratio:
If a two-stroke, the precise oil-to-fuel ratio and recommended oil type will be crucial and detailed in the manual.
Valve Clearance 50:
Specific clearance values and adjustment procedures for the 50cc model (if 4-stroke).
Valve Clearance 90:
Specific clearance values and adjustment procedures for the 90cc model (if 4-stroke).
Transmission Type:
Automatic CVT (Continuously Variable Transmission) with a final drive via chain or belt.
Optional Gearbox:
Not applicable; ATVs of this class typically feature a single-speed CVT.
Drive System:
Rear-wheel drive (RWD) is standard for this class of ATV. Manual may detail front drive components if applicable, but unlikely for this specific model's primary variants.
Cvt Fluid Type:
Specific CVT fluid type and change interval will be detailed. Often a specialized gear oil or automatic transmission fluid (ATF) depending on design.
Final Drive Oil Type:
Specific gear oil type and change interval for the rear differential/axle.
Overall Length:
Specific dimensions to be found in the manual, but typically compact for youth/entry-level ATVs.
Overall Width:
Specific dimensions to be found in the manual.
Overall Height:
Specific dimensions to be found in the manual.
Dry Weight:
Specific weight to be found in the manual, but typically in the 150-250 lb range.
Payload Capacity:
Specific capacity to be found in the manual, typically limited for smaller ATVs.
Front Tire Size:
To be specified in the manual, common sizes might be AT16x7-8 or similar.
Rear Tire Size:
To be specified in the manual, common sizes might be AT16x7-8 or AT16x8-7 or similar.
Wheel Bolt Pattern:
To be specified in the manual, likely a 4-bolt pattern with a common offset.
Safety Certifications:
Manual would detail any specific safety certifications or warnings pertinent to ATV operation.
Throttle Limiter:
Many youth ATVs have adjustable throttle limiters, and the manual would cover their operation and adjustment.
Engine Governor:
May feature an engine governor to limit maximum RPM and speed.
Hand Guards:
Standard on most ATVs to protect hands from branches and debris.
Full Floorboards:
Designed to prevent feet from slipping off the footpegs and provide protection.
Chain Guard:
Essential safety feature to prevent entanglement with the drive chain.
Engine Oil Change:
Typically every 1,000-2,000 km or annually, but the manual will provide precise intervals and intervals for severe use.
Air Filter Cleaning:
Frequent cleaning or replacement recommended, especially in dusty conditions. Initial check at 500 km, then every 1,000 km or as needed.
Spark Plug Replacement:
Typically recommended every 5,000-10,000 km or as needed based on inspection. Manual will specify type and gap.
Brake Fluid Change:
Recommended every 2 years or as per manual recommendations, to maintain braking performance and prevent corrosion.
Cvt Belt Inspection:
Regular inspection for wear and damage is critical, often recommended every 1,000-2,000 km. Replacement interval varies significantly with usage.
Engine Oil Type:
Likely SAE 10W-40 or 20W-50 motorcycle-specific oil (JASO MA certified). Manual will confirm exact grade and API service classification.
Engine Oil Capacity:
Specific capacity for 50cc and 90cc models will be listed in the manual, typically under 1 liter.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid is standard for most ATVs. Manual will specify.
Common Wear Items:
CVT belts, brake pads, tires, and suspension bushings are common wear items on ATVs of this nature.
Carburetor Tuning:
Carburetors may require periodic cleaning and adjustment due to fuel variability or engine wear.
Electrical Connections:
Corrosion or loose connections in the electrical system can lead to intermittent faults. Manual will guide on checking these.
Manufacturer:
TGB (Taiwan Golden Bee) is a well-established Taiwanese manufacturer of scooters, ATVs, and motorcycles.
Hornet Line:
The Hornet series represents TGB's offering in the entry-level to mid-size ATV segment, often targeting youth riders or recreational users.
Engine Variants:
The 50cc and 90cc variants indicate a tiered product line to accommodate different age groups and experience levels, often with common chassis components.
Production Years:
Specific production years for the Hornet 50/90 are not explicitly stated but likely span the late 1990s through the 2010s, with potential updates and variations.
