Category:
Utility ATV / Farm ATV
Target Audience:
Owners, mechanics, and enthusiasts of Yamaha YTM225DRS models
Competitors:
Other utility ATVs of the mid-1980s, such as Honda TRX series, Suzuki LT series, Kawasaki Bayou series
Unique Selling Points:
Shaft drive, dual-range transmission, robust utility design
Engine:
Complete overhaul, troubleshooting, diagnostics, tuning
Fuel System:
Carburetor adjustment, cleaning, fuel tank, fuel lines
Ignition System:
Spark plug, ignition coil, CDI unit, timing
Drivetrain:
Shaft drive system, differential, rear axle maintenance
Suspension:
Front and rear suspension components, adjustments, shock absorbers
Brakes:
Hydraulic brake system, master cylinder, calipers, brake pads, fluid bleeding
Electrical System:
Wiring diagrams, lighting, battery, starter motor, charging system
Frame And Body:
Chassis inspection, body panel removal and installation, fenders
Cooling System:
Air cooling system, cylinder head cooling fins maintenance
Wheels And Tires:
Tire pressure, wheel bearing maintenance, tire replacement
Routine Maintenance:
Oil changes, filter replacements, lubrication points, pre-ride checks
Troubleshooting:
Diagnostic charts for common problems, symptom-based solutions
Engine Repair:
Piston replacement, cylinder head service, valve adjustments, complete engine rebuild procedures
Transmission Service:
Clutch adjustments, gearbox inspection and repair
Electrical Diagnostics:
Fault finding for lighting, ignition, and charging systems using provided wiring diagrams
Brake System Service:
Brake bleeding, pad replacement, caliper servicing
Suspension Tuning:
Adjustments for optimal handling based on riding conditions
Depth:
Complete factory-level repair and overhaul, including detailed disassembly and assembly instructions
Diagnostic Capabilities:
Advanced diagnostic charts and troubleshooting procedures for all major systems
Special Tools:
Identification of required special tools for specific repair procedures
Searchable Text:
Likely (standard for professionally produced PDFs)
Printability:
Designed to be printed out in its entirety
Recommended Binding:
Spiral-bound or binder for ease of use in a workshop environment
Ideal Paper For Printing:
Heavyweight, durable paper (e.g., 24 lb bond or higher) for workshop conditions
Engine Type:
Air-cooled, Four-stroke, SOHC
Displacement:
223 cc (approx.)
Bore X Stroke:
Specific dimensions found within the manual
Compression Ratio:
Specific ratio found within the manual
Carburetor Model:
Mikuni VM Series (specific size to be confirmed in manual)
Horsepower:
Estimated 13-15 HP (typical for this class and era)
Torque:
Estimated 13-15 lb-ft (typical for this class and era)
Fuel Type:
Unleaded Gasoline (Octane rating as specified in manual)
Fuel Tank Capacity:
Approx. 2.5 - 3.0 Gallons (verify with manual)
Overall Length:
Approx. 72-76 inches (verify with manual)
Overall Width:
Approx. 40-44 inches (verify with manual)
Overall Height:
Approx. 42-46 inches (verify with manual)
Dry Weight:
Approx. 400-430 lbs (verify with manual)
Ground Clearance:
Approx. 4-5 inches (verify with manual)
Braking System:
Front and rear hydraulic disc brakes
Lighting:
Headlight, taillight/brakelight
Handlebar Design:
Grip-style throttle, hand levers for clutch and brake
Footwells:
Protective footwells for rider's feet
Engine Oil Change:
Every 1000 km or 6 months (typical, confirm in manual)
Air Filter Cleaning:
Every 500 km or as needed based on conditions (confirm in manual)
Spark Plug Replacement:
Every 3000 km or annually (confirm in manual)
Brake Fluid Change:
Every 1-2 years or as per manual recommendations
Engine Oil Type:
Yamalube 4 (or equivalent API SE, SF, SG, JASO MA rated 10W-30 or 20W-40)
Engine Oil Capacity:
Approx. 1.5 - 2.0 Liters (verify with manual)
Brake Fluid Type:
DOT 3 or DOT 4 Hydraulic Brake Fluid
Common Wear Items:
Carburetor jets clogging, brake component wear, drive shaft U-joints (if applicable, check manual)
Electrical Concerns:
Age-related degradation of wiring insulation, stator output variations
Manufacturer Reputation:
Yamaha is renowned for its high-quality engines, motorcycles, and recreational vehicles, with a long history of innovation.
Development Context:
Part of Yamaha's early foray into the ATV market, focusing on utility and reliability for agricultural and recreational use.
Production Years:
1983-1986
Manufacturing Location:
Japan (typical for Yamaha at this time)
