Yamaha Timberwolf 250 YFB250 All 2WD & 4WD ATV Complete Workshop Service Repair Manual 1992 1993 1994 1995 1996 1997 1998 1999 2000

Precio habitual: $16.99
Precio de venta: $16.99
Precio habitual
Precio unitario: por

18 people are viewing this right now

Tipo: Atv

Proveedor:

SKU: 81858

Etiquetas: 1992 1993 1994 1995 1996 1997 1998 1999 2000 ATV Powersports Timberwolf 250 Timberwolf Models Yamaha YFB250

Variantes de producto

Descripción

The Timberwolf 250 (YFB250) is a versatile All-Terrain Vehicle (ATV) produced from 1992 to 2000, representing a commitment to reliable and practical off-road transportation. This first-generation model was designed for a range of activities, including recreational trail riding, light farm work, and hunting expeditions. Available in both 2WD and 4WD variants, the Timberwolf 250 is recognized for its robust, air-cooled engine, comfortable seating, and dependable shaft drive system on 4WD models. Its engineering prioritizes durability and ease of use, making it a solid choice for those seeking a capable and enduring utility ATV, and it competed effectively in a market segment with offerings from major manufacturers like Honda, Kawasaki, and Suzuki. This comprehensive workshop service repair manual provides essential information for the maintenance and repair of the Timberwolf 250. It covers all major systems, including the powertrain, chassis and suspension, brakes, and electrical components, offering detailed procedures for engine overhauls, transmission servicing, and electrical diagnostics. The manual includes step-by-step instructions for routine maintenance, troubleshooting common issues, and performing technical adjustments. With its in-depth coverage, this English-language resource is an invaluable tool for owners, mechanics, and technicians aiming to preserve the performance, reliability, and longevity of their Timberwolf 250 ATV.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

Timberwolf 250

Model Code:

YFB250

Vehicle Type:

All-Terrain Vehicle (ATV)

Generation

Generation Name:

First Generation

Applicable Model Years:

1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

Codes

Chassis Codes Covered:

YFB250

👋 Introduction

Market Position

Positioning:

The Yamaha Timberwolf 250 YFB250 was positioned as a reliable and versatile mid-size utility ATV, suitable for recreational trail riding, light farm work, and hunting applications. It offered a balance of performance, durability, and ease of use.

Competitive Analysis

Competitors:

Competed with similar offerings from Honda (e.g., FourTrax 300), Kawasaki (e.g., Bayou 300), and Suzuki (e.g., QuadRunner 250/300) during its production run.

Key Features

Features:

Available in both 2WD and 4WD configurations, robust air-cooled engine, comfortable seating, reliable shaft drive (on 4WD models), straightforward maintenance, and Yamaha's reputation for build quality.

📋 Manual Details

Coverage Areas

Drive Types Covered:

2WD and 4WD variants

Page Count

Estimated Page Count:

High (typically 300-500+ pages for complete workshop manuals)

Manual Type

Type:

Complete Workshop Service Repair Manual

Language

Language:

English

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Powertrain:

Engine overhaul, cooling system, fuel system (carburetor), exhaust system, transmission (gearbox and clutch operation), driveline (shafts, differentials for 4WD).

Chassis And Suspension:

Frame inspection and repair, front and rear suspension (shocks, springs, A-arms), steering system (handlebar, tie rods, steering knuckles).

Brakes:

Front and rear brake system inspection, repair, and bleeding (likely drum or disc brakes depending on specific model variant covered).

Electrical And Ignition:

Ignition system troubleshooting, battery and charging system (stator, regulator/rectifier), lighting, starter motor, wiring diagrams.

Body And Trim:

Body panels, fenders, racks, seat, handlebar assembly, graphics.

Procedures Included

Maintenance:

Regular servicing, oil changes, filter replacements, spark plug maintenance, lubrication points, pre-ride inspections.

Troubleshooting:

Diagnostic procedures for common and uncommon issues across all major systems, symptom-based troubleshooting guides.

Repair And Rebuild:

Detailed step-by-step instructions for component disassembly, cleaning, inspection, repair, and reassembly of major mechanical and electrical parts.

Technical Adjustments:

Carburetor adjustment, valve clearance checks and adjustments, brake adjustments, suspension adjustments.

Technical Depth

Depth:

Comprehensive (covers routine maintenance to complete engine and transmission rebuilds, electrical system diagnostics).

📊 Manual Specifications

File Format

Format Details:

Searchable PDF document, allowing for quick access to specific information via keywords. Optimized for digital viewing and printing.

Print Quality

Quality:

High-resolution digital scans, ensuring clarity of text, diagrams, and photographs.

Binding Type

Binding:

Not Applicable (Digital PDF Download)

Paper Type

Paper Type:

Not Applicable (Digital PDF Download)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Four-stroke, SOHC, air-cooled

Displacement:

230cc to 250cc (specific variants may vary slightly, typically around 230cc)

Bore X Stroke:

Commonly around 68.5mm x 64mm (verify with manual for specific year/model).

Compression Ratio:

Typically around 9.2:1 to 9.6:1 (verify with manual).

Valve Configuration:

SOHC (Single Overhead Camshaft), 2 valves per cylinder.

Performance

Horsepower:

Estimated 15-20 HP (actual figures vary by year and specific tuning).

Torque:

Estimated 14-17 lb-ft (actual figures vary by year and specific tuning).

Fuel System

Carburetor Type:

Mikuni constant velocity (CV) carburetor, typically a 30mm or 32mm size.

Fuel Type:

Unleaded gasoline, minimum octane rating of 87.

Fuel Tank Capacity:

Approximately 2.6 gallons (10 liters).

Cooling System

Cooling Method:

Air-cooled.

Ignition System

Ignition Type:

CDI (Capacitor Discharge Ignition).

🔧 Transmission

Standard

Transmission Type:

Automatic transmission with Yamaha's Ultramatic V-belt system (CVT - Continuously Variable Transmission).

Gear Selection:

Forward, Neutral, Reverse (F-N-R).

Optional

Optional Transmission:

None (all models used the Ultramatic CVT).

Features

Drive System:

Shaft drive (on 4WD models) with selectable 2WD/4WD engagement. 2WD models have rear shaft drive.

Gear Reduction:

High and Low range gears (selectable within the CVT system).

📐 Dimensions

Exterior

Overall Length:

Approximately 73.6 inches (1870 mm).

Overall Width:

Approximately 41.9 inches (1065 mm).

Overall Height:

Approximately 42.3 inches (1075 mm).

Wheelbase:

Approximately 49.2 inches (1250 mm).

Weights

Dry Weight:

Approximately 467 lbs (212 kg) for 2WD, 498 lbs (226 kg) for 4WD (verify with manual).

Ground Clearance:

Approximately 6.7 inches (170 mm).

Cargo

Front Rack Capacity:

Typically around 45 kg (99 lbs).

Rear Rack Capacity:

Typically around 65 kg (143 lbs).

🛡️ Safety Features

Ratings

Crash Test Ratings:

Not Applicable (ATVs are not subject to the same crash testing standards as passenger vehicles).

Active Features

Braking System:

Hydraulic disc brakes front and rear, or drum brakes depending on the specific model variant. Parking brake system.

Lighting:

Dual halogen headlights, brake light, taillight.

Passive Features

Frame Construction:

Steel frame designed for off-road durability.

Ergonomics:

Comfortable seat and handlebar position for rider control and stability.

💡 Technology Features

Infotainment

Infotainment System:

None (basic utility ATV, no integrated infotainment systems).

Driver Assistance

Assistance Features:

None (basic utility ATV, no electronic driver assistance features like traction control or ABS).

Connectivity

Connectivity Options:

None (basic utility ATV).

🔧 Maintenance

Service Intervals

Engine Oil Change:

Every 1000 km (620 miles) or 12 months, whichever comes first. Initial break-in oil change often recommended earlier.

Air Filter Cleaning:

Inspect every 500 km (310 miles) or 6 months, clean or replace as needed. More frequent cleaning in dusty conditions.

Spark Plug Replacement:

Every 3000 km (1860 miles) or 24 months. Inspect and gap at 1000 km (620 miles).

Valve Clearance Check:

Every 3000 km (1860 miles) or 24 months.

Fluid Specifications

Engine Oil Type:

Yamalube 4 (SAE 10W-30) or equivalent API SE, SF, or SG class oil.

Engine Oil Capacity:

Approximately 1.60 liters (1.7 US qt) without filter change, 1.70 liters (1.8 US qt) with filter change. (Verify with manual).

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid.

Gear Oil Type:

Yamaha Gear Oil or equivalent SAE 80W hypoid gear oil.

Gear Oil Capacity:

Approximately 160 ml (5.4 US fl oz) for rear differential (4WD models).

Known Issues

Common Wear Items:

CVT belt wear, carburetor jetting issues (clogging), aging electrical connectors, rear differential seals on 4WD models, suspension bushings.

Carburetor Performance:

Carburetors can be sensitive to fuel quality and require periodic cleaning and adjustment to maintain optimal performance, especially in varying altitudes.

Cooling System Maintenance:

While air-cooled, ensuring good airflow through the cylinder fins by keeping them clean is crucial for preventing overheating.

📚 Vehicle History

Brand Heritage

Heritage:

Yamaha has a long and storied history in powersports, particularly with motorcycles and ATVs, known for engineering excellence and reliability.

Model Evolution

Timberwolf Lineage:

The Timberwolf 250 was a significant model in Yamaha's ATV lineup, filling the mid-size segment and serving as a predecessor to more advanced models. It emphasized practicality and durability over high-performance features.

Production

Production Period:

Produced from the early 1990s through the early 2000s, with this manual covering the initial generation's key years (1992-2000).

Manufacturing Location:

Primarily manufactured in Japan, with some assembly potentially occurring in other Yamaha global facilities.

🏆 Awards & Recognition

Recognitions

Industry Awards:

While specific awards are not readily documented for this model, Yamaha ATVs from this era were generally recognized for their durability, reliability, and value in the utility segment.

Ratings

Consumer Ratings:

Generally well-regarded by owners for its workhorse capability and longevity, though less sporty than some competitors.

Certifications

Safety Certifications:

Meets applicable safety standards for ATVs as mandated by regulatory bodies at the time of manufacture.