Yamaha TIMBERWOLF 4WD YFB250 ATV Full Service & Repair Manual 1993-2000

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UGS: 56331

Mots clés: 1993 1994 1995 1996 1997 1998 1999 2000 ATV Powersports TIMBERWOLF 4WD YFB250 Timberwolf Models Yamaha

Variantes de produits

Description

The Timberwolf 4WD (YFB250) is a capable and practical All-Terrain Vehicle (ATV) produced from 1993 to 2000. This first-generation model is recognized for its reliable shaft drive 4WD system, comfortable seating, and robust chassis, embodying established engineering quality. Designed for a wide range of recreational and light work applications, the Timberwolf 250 offers a solid balance of performance and durability, making it a popular choice in its segment. Its engineering emphasizes user-friendliness and dependable operation, ensuring it can tackle various terrains and tasks with confidence. This comprehensive Factory Service & Repair Workshop Manual covers the Timberwolf 4WD (YFB250) for model years 1993 through 2000. It provides in-depth information across all major systems, including the engine, transmission, drivetrain, chassis, and electrical components. The manual details essential maintenance procedures, such as routine servicing and fluid changes, alongside extensive troubleshooting guides and step-by-step repair instructions for everything from basic component replacement to complete overhauls. With detailed technical specifications, including torque values and fluid capacities, this manual is an indispensable resource for owners and technicians seeking to maintain, diagnose, and repair their Timberwolf 250 efficiently and accurately.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

Timberwolf 4WD

Model Code:

YFB250

Vehicle Type:

All-Terrain Vehicle (ATV)

Body Style:

Generation

Generation Identifier:

First Generation

Codes

Vin Prefix:

👋 Introduction

Market Position

Positioning:

Practical and capable utility ATV for a wide range of recreational and light work applications.

Competitive Analysis

Competitors:

Honda FourTrax 300 4x4, Suzuki QuadRunner 250 4x4, Kawasaki Bayou 300 4x4.

Key Features

Features:

Reliable shaft drive 4WD system, comfortable seating, robust chassis, established Yamaha engineering.

Manual Value Proposition

Value:

Enables owners and technicians to perform all necessary maintenance, repairs, and diagnostics efficiently and correctly, saving time and money.

📋 Manual Details

Coverage Areas

Years Covered:

1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

Regions Covered:

Global (standard specifications)

Page Count

Estimated Pages:

Hundreds

Manual Type

Type:

Factory Service & Repair Workshop Manual

Language

Language:

English

Format

Format:

PDF Download

Licensing

Usage License:

Unlimited use on multiple devices, life-time access

📖 Manual Coverage

Systems Covered

Powertrain:

Engine, Transmission, Drivetrain, Exhaust

Chassis:

Suspension, Steering, Brakes, Wheels, Tires

Electrical:

Ignition, Lighting, Charging System, Starting System, Wiring Diagrams, Troubleshooting

Bodywork:

Frame, Plastics, Body Panels, Seat, Handlebars

Fuel System:

Carburetor, Fuel Tank, Fuel Lines

Procedures Included

Maintenance:

Routine servicing, oil changes, filter replacements, lubrication, adjustments

Troubleshooting:

Diagnosis of common and complex problems, fault finding guides

Repair:

Component disassembly, repair, reassembly, replacement

Overhaul:

Engine rebuild, transmission overhaul, carburetor overhaul

Specifications:

Torque values, clearances, fluid capacities, electrical specifications

Technical Depth

Depth:

Comprehensive (from basic maintenance to complete engine rebuilds and electrical diagnostics)

📊 Manual Specifications

File Format

File Type:

Searchable:

Yes (typically for professionally created PDFs)

Print Quality

Print Capability:

Printable (single pages or full manual)

Binding Type

Binding:

N/A (Digital Download)

Paper Type

Paper Quality:

N/A (Digital Download)

Compatibility

Operating Systems:

Windows and macOS

⚙️ Engine Specifications

Primary Engine

Engine Type:

4-stroke, SOHC, air-cooled

Displacement:

230 cc (229 cm³)

Bore X Stroke:

65.0 mm x 68.5 mm

Compression Ratio:

9.2:1

Performance

Horsepower:

Approximately 17-19 HP (estimated, varies by year and specific tuning)

Torque:

Approximately 13-15 lb-ft (estimated)

Fuel System

Fuel Delivery:

Carburetor (Mikuni BS30 for most models)

Fuel Type:

Unleaded gasoline

Ignition

Ignition System:

CDI (Capacitor Discharge Ignition)

Lubrication

Oil Type:

Yamaha Genuine Motorcycle Oil or equivalent API SG, SAE 10W-30 or 20W-40

Oil Capacity:

Approximately 1.7 liters (1.8 US qt) with filter change.

🔧 Transmission

Standard

Transmission Type:

5-speed semi-automatic with reverse

Clutch Type:

Wet, multi-plate

Features

Drivetrain:

Shaft drive, 4WD (selectable front drive engagement)

Fluid Specifications

Transmission Oil Type:

Yamalube Gear Oil or equivalent SAE 80W API GL-3

📐 Dimensions

Exterior

Length:

Approximately 1955 mm (77.0 in)

Width:

Approximately 1090 mm (42.9 in)

Height:

Approximately 1105 mm (43.5 in)

Wheelbase:

Approximately 1220 mm (48.0 in)

Weights

Dry Weight:

Approximately 220 kg (485 lbs)

Ground Clearance:

Approximately 130 mm (5.1 in)

Cargo

Front Rack Capacity:

Approximately 20 kg (44 lbs)

Rear Rack Capacity:

Approximately 40 kg (88 lbs)

🛡️ Safety Features

Ratings

Safety Standards:

Meets applicable ANSI standards for recreational ATVs (as specified by manufacturer at time of sale).

Active Features

Braking System:

Hydraulic disc brakes front and rear.

Parking Brake:

Drum brake integrated into rear drivetrain.

Passive Features

Lighting:

Dual halogen headlights, LED taillight/brake light.

Rollover Protection:

N/A (Standard ATV design without roll cage)

💡 Technology Features

Infotainment

Infotainment System:

N/A (Basic utility vehicle with no digital infotainment system)

Driver Assistance

Driver Assistance Features:

Connectivity

Connectivity Features:

Controls

Transmission Control:

Foot shifter for gear changes, hand lever for clutch engagement.

4Wd Engagement:

Front drive engagement lever (manual operation).

🔧 Maintenance

Service Intervals

Engine Oil Change:

Every 1000 km (600 miles) or 6 months, whichever comes first.

Air Filter Cleaning:

Every 500 km (300 miles) or 3 months. Replace if damaged.

Spark Plug Check:

Every 1000 km (600 miles) or 6 months. Inspect and adjust gap.

Valve Clearance Check:

Every 4000 km (2400 miles) or 24 months.

Fluid Specifications

Brake Fluid:

DOT 3 or DOT 4

Grease Type:

Lithium-based multipurpose grease

Known Issues

Carburetor Issues:

Can be prone to clogging due to ethanol fuels or debris if not properly maintained or if aftermarket fuel filters are not used. Idle stability can sometimes be affected.

Carburetor Part Number:

Mikuni BS30 (common, verify specific model year)

Ignition Coil Failure:

While generally reliable, ignition coils can fail over time, leading to no-spark conditions.

Starter Solenoid:

Can degrade over time, leading to slow or no cranking.

Common Repairs

Repair Focus:

Carburetor cleaning and adjustment, brake pad replacement, suspension linkage lubrication, drive shaft U-joint service.

📚 Vehicle History

Brand Heritage

Heritage:

Yamaha has a long-standing reputation for building durable and reliable powersports vehicles, including ATVs since the 1980s.

Model Evolution

Evolution:

The Timberwolf 250 series was Yamaha's entry-level 4WD utility ATV, designed for accessibility and general-purpose use. It was a popular model in its segment.

Production

Production Period:

1993-2000 (exact model year variations exist within this range)

Manufacturing Location:

Japan (typical for Yamaha ATVs of this era)

🏆 Awards & Recognition

Recognitions

Industry Awards:

Not widely publicized for specific awards; recognized as a solid utility ATV in its class.

Ratings

Consumer Ratings:

Generally positive for reliability and capability for its price point.