Category:
Entry-level to mid-range utility ATV (All-Terrain Vehicle)
Target User:
Recreational riders, utility tasks, farm work, light trail riding
Competitors:
Honda FourTrax 300/350, Suzuki KingQuad 300/350, Polaris Sportsman 400/500 (earlier models)
Powertrain:
Reliable air-cooled engine, often with selectable 2WD/4WD (confirm specific trim)
Suspension:
Independent front suspension, solid rear axle with likely drum or disc brakes
Utility:
Front and rear cargo racks for hauling gear
Ease Of Use:
Automatic transmission (likely) simplifies operation
Engine:
Internal engine components, top-end rebuild, bottom-end rebuild, cylinder head, piston, crankshaft, valve train, lubrication system, cooling system, timing procedures
Fuel System:
Carburetor (cleaning, adjustment, overhaul), fuel pump, fuel lines, fuel tank maintenance
Transmission:
Automatic transmission (if applicable for the specific model variant), clutch, gear shifting mechanisms, gear oil specifications
Drivetrain:
Shaft drive system, drive shafts, universal joints, differential (front and rear), wheel hubs, CV joints
Suspension:
Front and rear suspension systems, shock absorbers, springs, control arms, bushings, alignment procedures
Brakes:
Hydraulic brake system, front and rear brake calipers, brake pads, brake rotors, brake lines, master cylinder, bleeding procedures
Electrical System:
Ignition system, starting system, charging system (stator, rectifier/regulator), battery, lighting (headlights, taillights, indicator lights), wiring diagrams, fuses, electrical component testing
Cooling System:
Radiator (if liquid-cooled), fan, coolant types and capacities, thermostat, water pump
Steering:
Steering column, tie rods, steering knuckle, power steering (if equipped), lubrication points
Frame And Body:
Chassis inspection, body panel removal and installation, seat, fenders, racks, storage compartments
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug replacement, lubrication, air filter cleaning/replacement
Troubleshooting:
Diagnostic procedures for common faults, symptom-based troubleshooting charts, electrical diagnostic flowcharts
Repair:
Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation
Rebuild:
Detailed overhaul procedures for engine, transmission, and other major components
Adjustment:
Carburetor adjustments, idle speed settings, cable adjustments
Torque Specifications:
Crucial torque values for critical fasteners throughout the vehicle
Wiring Diagrams:
Comprehensive electrical schematics for all circuits
Depth:
Factory-level technical repair and diagnostics, suitable for professional technicians and advanced DIY users
Type:
Air-cooled, 4-stroke, SOHC
Displacement:
348cc (350 class)
Bore X Stroke:
Typically around 83mm x 64.5mm (verify with manual)
Compression Ratio:
Around 9.2:1 (verify with manual)
Horsepower:
Estimated 19-22 HP (at crankshaft, verify with manual)
Torque:
Estimated 20-23 lb-ft (at crankshaft, verify with manual)
Carburetor:
Mikuni VM series (e.g., VM26SS or similar), single carburetor
Fuel Type:
Unleaded gasoline, 87 octane minimum
Oil Type:
Yamalube 4 (or equivalent) 10W-40 motorcycle oil, API SG or higher, JASO MA compliant (confirm with manual)
Oil Capacity:
Approximately 1.7-1.9 liters (with filter change, verify with manual)
Type:
CDI (Capacitor Discharge Ignition)
Spark Plug:
NGK CR6HSA or equivalent (verify with manual)
Atv Safety Standards:
Meets ANSI standards for recreational ATVs (user manual will provide safety guidelines)
Braking System:
Hydraulic disc brakes front, often drum or disc rear (check manual for exact configuration)
Parking Brake:
Mechanical parking brake (verify location and type)
Lighting:
Dual headlights, brakelight/taillight
Throttle Limiter:
Often present for novice riders (check manual for adjustment/operation)
Operator Training:
Manual emphasizes operator training, helmet use, protective gear, and safe riding practices
Engine Oil Change:
Every 100 hours or 6 months, whichever comes first (verify with manual)
Air Filter Cleaning:
Every 20 hours or 3 months (more frequently in dusty conditions, verify with manual)
Spark Plug Inspection:
Every 100 hours or 6 months (verify with manual)
Brake Fluid Check:
Check every 20 hours or monthly, replace every 2 years (verify with manual)
Cv Boot Inspection:
Inspect regularly for tears or damage
Greasing:
Lubricate suspension and steering linkage points every 100 hours or 6 months (verify with manual for specific points)
Engine Oil:
Yamalube 4 (or equivalent) 10W-40, API SG, JASO MA
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid
Gear Oil:
Yamaha Genuine Gear Oil or equivalent (check manual for specific viscosity for front/rear differentials and final drive)
Common Wear Items:
CV boots, brake pads, wheel bearings, suspension bushings
Carburetor Maintenance:
Carburetors can require periodic cleaning and adjustment due to fuel quality and use in dirty environments.
Starting System:
Starter motor and battery health are crucial for reliable starting.
Drive Belt Wear:
CVT drive belts have a finite lifespan and require inspection for wear and damage.
