🏷️ Basic Information

Make:

Yamaha

Model:

YFM200 Moto-4

Year:

2004

Product Type:

Factory Service Repair Manual

Engine Code Identifier:

Likely a Yamaha 200cc 4-stroke variant (specific code not provided in product info)

👋 Introduction

Category:

Entry-level to mid-range All-Terrain Vehicle (ATV)

Target Audience:

Recreational riders, light utility use, off-road enthusiasts.

Competitors:

Honda FourTrax 200, Suzuki QuadSport 230, Kawasaki Bayou 220 of similar vintage.

Utility:

Practicality for light farm work, trail riding, and recreational activities.

Simplicity:

Known for straightforward mechanics and ease of maintenance.

Affordability:

Often positioned as an accessible entry point into ATV ownership.

📋 Manual Details

Systems Covered:

General Information, Specifications, Periodic Checks and Adjustments, Engine, Carburetor, Drive Train, Chassis, Electrical, Troubleshooting, Wiring Diagram

Estimated Page Count:

Estimated 200-300 pages based on typical factory service manuals for this era and type of vehicle.

Type:

Factory Service Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Service:

Comprehensive coverage including disassembly, inspection, assembly, and troubleshooting of the entire engine.

Fuel And Carburetion:

Detailed procedures for carburetor cleaning, adjustment, rebuilding, and fuel system component service.

Drivetrain And Transmission:

Coverage of clutch, transmission, drive shafts, and final drive assembly maintenance and repair.

Chassis And Suspension:

Includes service procedures for front and rear suspension, steering system, wheels, and brakes.

Electrical System:

Detailed diagnosis and repair of ignition system, lighting, charging system, and battery.

Troubleshooting Guides:

Systematic diagnostic procedures for common and uncommon problems.

Wiring Diagrams:

Complete and detailed electrical wiring diagrams for accurate troubleshooting.

Routine Maintenance:

Maintenance schedules, oil changes, filter replacements, spark plug service, and general inspections.

Engine Repair:

Engine overhaul, piston and cylinder service, valve adjustments, and gasket replacement.

Carburetor Tuning:

Jetting information, float level adjustment, and idle speed settings.

Brake System Service:

Brake pad replacement, caliper service, and brake fluid bleeding.

Suspension Rebuild:

Shock absorber service, fork seal replacement, and linkage lubrication.

Electrical Diagnostics:

Testing starter motor, alternator, CDI unit, and other electrical components.

Troubleshooting Fault Finding:

Step-by-step guides for diagnosing and resolving issues like starting problems, misfires, and electrical failures.

Depth:

Comprehensive, covering everything from basic owner maintenance to complex engine and electrical system overhauls.

📊 Manual Specifications

Format:

PDF

Searchability:

Likely text-searchable PDF, allowing for quick access to specific information.

Printability:

Yes, printable, allowing users to create physical copies for their workshop.

Resolution:

Typically high resolution for clear viewing and printing of diagrams and text.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

Operating Systems:

WINDOWS and MAC

Software Requirement:

Adobe PDF Reader

⚙️ Engine Specifications

Type:

4-stroke, SOHC, Air-cooled

Displacement:

195cc (approximately, specific to YFM200 variant)

Bore X Stroke:

Specific dimensions would be detailed in the manual.

Compression Ratio:

Details would be in the manual, likely around 9.0:1 to 10.0:1.

Horsepower:

Estimated 12-15 HP at peak RPM (specific figures in manual).

Torque:

Details would be in the manual.

Carburetor Type:

Mikuni VM Series or similar, likely a single barrel carburetor.

Fuel Type:

Unleaded gasoline

Fuel Tank Capacity:

Likely in the 2-3 gallon range (specific figure in manual).

Ignition System:

CDI (Capacitor Discharge Ignition)

Spark Plug Type:

Specific NGK or Denso part number would be listed in the manual.

Oil Type:

Yamalube 4, SAE 10W-30 or 20W-40 API SE, SF, or SG (specific grade depends on ambient temperature, consult manual).

Oil Capacity:

Approx. 1.0 - 1.2 liters (including filter, specific figure in manual).

Cooling Method:

Air-cooled

🔧 Transmission

Transmission Type:

Automatic (CVT - Continuously Variable Transmission) with Reverse.

Drive System:

2WD (Rear Wheel Drive)

Transmission Options:

N/A for this model and year, typically 2WD automatic.

Gear Selection:

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

Clutch Type:

Automatic centrifugal clutch

Final Drive:

Sealed O-ring chain drive

Final Drive Oil:

Yamaha Chain & Gear Oil or equivalent (specific SAE grade in manual).

📐 Dimensions

Length:

Approx. 70-75 inches (specific figure in manual).

Width:

Approx. 40-45 inches (specific figure in manual).

Height:

Approx. 40-45 inches (specific figure in manual).

Wheelbase:

Approx. 45-50 inches (specific figure in manual).

Dry Weight:

Approx. 400-450 lbs (specific figure in manual).

Ground Clearance:

Approx. 6-8 inches (specific figure in manual).

Rack Capacity Front:

Likely around 40-50 lbs (specific figure in manual).

Rack Capacity Rear:

Likely around 60-70 lbs (specific figure in manual).

🛡️ Safety Features

Atv Safety Standards:

Complies with ANSI standards for recreational ATVs (standard for the era).

Braking System:

Hydraulic disc brakes (front and rear) or drum brakes depending on specific configuration. Manual will detail.

Parking Brake:

Hand-operated or foot-operated parking brake (specific type in manual).

Lighting:

Headlights, taillight, brake light.

Handlebars:

Standard ATV handlebars with handgrips and controls.

Footwells:

Aggressively designed footwells for grip and protection.

💡 Technology Features

System:

Basic instrumentation: speedometer, odometer, neutral indicator, high beam indicator. No complex infotainment system.

Features:

None; this is a purely mechanical ATV focused on utility and trail riding.

Features:

N/A

🔧 Maintenance

Engine Oil Change:

Every 1,000 km or 6 months, whichever comes first (typical, consult manual for precise intervals).

Air Filter Cleaning:

Regular inspection and cleaning, replacement as needed, especially in dusty conditions.

Spark Plug Replacement:

Every 3,000 km or 12 months, or as needed based on inspection (typical, consult manual).

Valve Adjustment:

Every 6,000 km or 24 months (typical, consult manual).

Brake Fluid Flush:

Every 2 years or as recommended by mileage/usage (consult manual).

Engine Oil Viscosity:

SAE 10W-30 or 10W-40 recommended, subject to ambient temperature (refer to manual for specific chart).

Engine Oil API:

API SE, SF, or SG classified lubricant.

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid (consult manual for exact specification).

Final Drive Oil Type:

Yamaha Chain & Gear Oil or equivalent SAE 80W-90 (specific grade in manual).

Carburetor Clogging:

Common in older ATVs due to fuel sitting; requires periodic cleaning and maintenance.

Starter Solenoid Failure:

Can be a common point of failure; manual will detail testing and replacement.

Suspension Wear:

Bushings and seals can wear over time, affecting ride quality; manual provides replacement procedures.

Cvt Belt Wear:

The CVT belt can wear and require replacement; manual details inspection and replacement intervals.

📚 Vehicle History

Manufacturer:

Yamaha Motor Company, a globally recognized leader in motorcycles, marine products, and ATVs.

Atv Legacy:

Yamaha is a pioneer in the ATV industry, known for models like the Tri-Z and the original Big Bear and Wolverine.

Moto 4 Line:

The Moto-4 line represented Yamaha's entry into the utility and recreational ATV market, evolving over several generations and displacements.

Yfm200 Positioning:

The YFM200 was an early iteration, offering a balance of capability and affordability in the 200cc class.

Production Period:

The Moto-4 series was produced through the late 1980s and into the 1990s. The 2004 date in the product name likely refers to the manual's relevance to vehicles of that general era or a specific service update.

Manufacturing Origin:

Likely Japan or United States, typical for Yamaha ATVs.

🏆 Awards & Recognition

Industry Awards:

Specific awards for the YFM200 Moto-4 are not widely documented, but Yamaha's ATV line generally received positive reviews for reliability and performance in its class.

Consumer Ratings:

Often rated well for durability and ease of use in its segment.

Safety Certification:

Meets relevant safety certifications for ATVs of its production era.