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Yamaha YFM225 YFM 225 Moto 4 86-88 ATV Service Repair Workshop Manual

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This manual covers the YFM225 Moto 4 All-Terrain Vehicle (ATV), produced between 1986 and 1988. Known for its reliability and user-friendliness, the Moto 4 line represented a commitment to the...
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Typ: Atv
Anbieter:
Yamaha
Art.-Nr: 124210
Stichworte: 1986 1987 1988 ATV Moto 4 Moto 4 Models Powersports Yamaha YFM 225 YFM225
Yamaha YFM225 YFM 225 Moto 4 86-88 ATV Service Repair Workshop Manual
This manual covers the YFM225 Moto 4 All-Terrain Vehicle (ATV), produced between 1986 and 1988. Known for its reliability and user-friendliness, the Moto 4 line represented a commitment to the utility ATV market. The YFM225, a significant model in this series, features a 4-stroke, air-cooled, SOHC engine with a displacement of 222 cc, an automatic transmission with a torque converter, and shaft drive. Its robust engineering and practical design made it a capable machine for various recreational and light-duty tasks. This comprehensive service repair workshop manual provides detailed information essential for the maintenance and repair of your YFM225 Moto 4. It covers all major systems, including the engine, transmission, chassis, steering, suspension, brakes, and electrical components, offering step-by-step procedures for diagnosis, disassembly, assembly, and repair. The manual includes critical technical specifications, torque values, wiring diagrams, and troubleshooting guidance, empowering owners and technicians to perform all necessary service tasks and ensure the longevity and optimal performance of their ATV.
🏷️ Basic Information
Identification
Make:
Yamaha
Model:
YFM225 Moto 4
Model Nickname:
Moto 4
Vehicle Type:
All-Terrain Vehicle (ATV)
Generation
Production Years Covered:
1986, 1987, 1988
👋 Introduction
Market Position
Target User:
Yamaha YFM225 Moto 4 owners, DIY mechanics, repair shops
Competitive Analysis
Value Proposition:
Provides dealership-level technical information for self-service and repair, saving on labor costs.
Key Features
Digital Access:
Instant delivery, no shipping wait times
Usability:
Printable sections for clean workshop use
Navigation:
Improved with index/bookmarks for quick access to information
📋 Manual Details
Coverage Areas
Primary Coverage:
Complete service, repair, and workshop procedures
Page Count
Estimated Page Count:
Not specified (digital format, often comprehensive)
Manual Type
Type:
Service Repair Workshop Manual
Language
Language:
English
Format
Format:
Adobe Acrobat PDF
📖 Manual Coverage
Systems Covered
Engine:
Detailed diagnosis, disassembly, assembly, and tuning
Transmission:
Operation, maintenance, and repair of the gearbox and drive components
Chassis:
Frame inspection, repair, and related components
Steering:
Steering system components, linkage, and adjustments
Suspension:
Front and rear suspension components, shock absorbers, and linkage
Brakes:
Brake system maintenance, bleeding, component replacement (front and rear)
Electrical:
Wiring diagrams, lighting, ignition system, charging system, starter
Fuel System:
Carburetor overhaul, fuel tank, fuel lines, and pump (if applicable)
Lubrication:
Lubrication points, schedules, and fluid specifications
Clutch:
Clutch operation, adjustment, and component service
Seats System:
Seat mounting and related components
Locks:
Ignition switch and related locking mechanisms
Battery:
Battery maintenance, charging, and replacement
Procedures Included
Maintenance:
Scheduled maintenance, inspections, fluid changes, filter replacements
Troubleshooting:
Diagnostic procedures for common and uncommon issues
Repair:
Step-by-step repair instructions for all major and minor components
Disassembly Assembly:
Detailed instructions for taking apart and reassembling vehicle components
Torquing:
Specification of torque values for critical fasteners
Wiring Diagrams:
Comprehensive electrical schematics for the entire ATV
Technical Depth
Depth:
Comprehensive (from basic maintenance to full engine rebuilds and electrical diagnostics)
📊 Manual Specifications
File Format
File Type:
PDF
Searchability:
Searchable text content (typical for well-produced PDFs)
Print Quality
Printability:
Printable sections or entire manual
Image Quality:
High-resolution diagrams and illustrations (implied for dealership-grade manual)
Binding Type
Binding Recommendation:
Suitable for 3-ring binder insertion
Paper Type
Recommended Paper Type:
Standard printer paper or heavier stock for durability
⚙️ Engine Specifications
Primary Engine
Engine Type:
4-stroke, Air-cooled, SOHC
Displacement:
222 cc (Actual displacement often quoted slightly differently, e.g., 223cc for similar models)
Bore X Stroke:
Typically around 66.0 mm x 65.0 mm (specifics to be confirmed in manual)
Compression Ratio:
Approximately 9.2:1 (typical for this era and displacement)
Performance
Horsepower:
Estimated 17-19 HP (actual figures vary)
Torque:
Estimated 13-15 lb-ft (actual figures vary)
Fuel System
Carburetor:
Mikuni VM Series (e.g., VM26 or similar), single carburetor
Fuel Type:
Unleaded gasoline
Ignition
Ignition System:
CDI (Capacitor Discharge Ignition)
Cooling
Cooling Method:
Air-cooled
🔧 Transmission
Standard
Transmission Type:
Automatic (Torque Converter)
Drive System:
Shaft drive (2WD)
Features
Reverse:
Yes
📐 Dimensions
Exterior
Overall Length:
Approx. 70.5 in (1790 mm)
Overall Width:
Approx. 43.5 in (1105 mm)
Overall Height:
Approx. 41.1 in (1045 mm)
Weights
Dry Weight:
Approx. 370 lbs (168 kg)
Fuel Capacity:
Approx. 2.6 US gal (9.8 L)
🛡️ Safety Features
Active Features
Brakes:
Drum brakes (front and rear)
Parking Brake:
Yes
Passive Features
Lighting:
Headlight, taillight, brake light
💡 Technology Features
Infotainment
Display:
Basic instrument cluster (speedometer, odometer, warning lights)
Driver Assistance
Traction Control:
N/A
Connectivity
Charging Port:
N/A (typically no integrated charging ports)
🔧 Maintenance
Service Intervals
Oil Change Interval:
Refer to manual for specific hours/miles (typically every 100-200 hours or annually)
Air Filter Cleaning:
Frequent checks, especially in dusty conditions (refer to manual)
Spark Plug Replacement:
Refer to manual (typically every 2,000-5,000 miles or annually)
Fluid Specifications
Engine Oil Type:
Yamalube or equivalent motorcycle-specific 4-stroke oil (e.g., SAE 10W-30 or 20W-40, viscosity dependent on ambient temperature) - see manual for exact spec.
Engine Oil Capacity:
Approx. 1.6 US qt (1.5 L) without filter change, 1.7 US qt (1.6 L) with filter change (verify in manual)
Gear Oil Type:
Yamaha specific gear oil or equivalent (check manual for viscosity)
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid (verify in manual)
Known Issues
Carburetor Clogging:
Common with infrequent use or poor fuel quality, requiring cleaning/rebuild.
Electrical Connections:
Corrosion or loose connections can cause intermittent issues, especially in wet conditions.
Brake Wear:
Drum brakes require periodic adjustment and eventual replacement of shoes.
Suspension Seals:
Age-related degradation of seals can lead to leaks.
📚 Vehicle History
Brand Heritage
Manufacturer:
Yamaha Motor Company, a Japanese multinational corporation known for its motorcycles, marine products, and musical instruments.
Model Evolution
Moto 4 Line:
The Moto 4 series was Yamaha's entry into the utility ATV market, known for its reliability and user-friendliness. The YFM225 was an important model in this line.
Production
Manufacturing Origin:
Likely manufactured in Japan or the United States (specific plant not detailed)
🏆 Awards & Recognition
Recognitions
Industry Standing:
The Moto 4 series was well-regarded for its durability and utility in its class during its production years.
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