Vehicle Type:
All-Terrain Vehicle (ATV)
Target Demographic:
Recreational riders, utility users, off-road enthusiasts seeking a reliable and capable mid-size ATV.
Key Competitors:
Honda FourTrax series, Polaris Sportsman, Suzuki King Quad, Kawasaki Bayou/Brute Force.
Vehicle Strengths:
Durable powertrain, comfortable riding position, capable suspension for moderate terrain, Yamaha's reputation for reliability.
Engine System:
Complete engine overhaul, top-end and bottom-end rebuild, carburetor tuning and repair, cooling system maintenance, exhaust system inspection.
Transmission System:
Clutch operation and adjustment, gearbox inspection and repair, final drive maintenance, driveshaft inspection.
Chassis And Suspension:
Frame inspection, front and rear suspension component service (shocks, control arms, linkages), steering system diagnosis and repair, wheel bearing replacement.
Brakes:
Brake fluid service, caliper and master cylinder overhaul, brake pad and shoe replacement, rotor inspection and service.
Electrical System:
Wiring diagrams, ignition system troubleshooting, lighting circuits, battery and charging system analysis, starter motor service.
Fuel System:
Fuel tank and pump inspection, fuel line maintenance, fuel filter replacement, carburetor assembly and disassembly.
Bodywork And Trim:
Body panel removal and installation, fender repair, seat maintenance, control lever and cable adjustments.
Maintenance Procedures:
Regular scheduled maintenance, oil changes, filter replacements, chain adjustment, spark plug replacement, valve clearance checks.
Troubleshooting Guides:
Systematic diagnostic procedures for common and uncommon issues, fault finding charts.
Repair Procedures:
Step-by-step instructions for component removal, disassembly, repair, reassembly, and installation.
Technical Specifications:
Torque specifications, clearances, fluid capacities, electrical values, engine timing.
Engine Tuning:
Carburetor jetting, timing adjustments, and idle speed settings.
Suspension Adjustment:
Preload and damping adjustments where applicable.
Depth Of Coverage:
Comprehensive from basic rider maintenance to full engine and transmission rebuilds, including detailed diagnostic procedures.
Torque Specifications:
Comprehensive list of all critical torque values for engine, chassis, and suspension components.
Clearances And Tolerances:
Detailed specifications for valve clearances, bearing play, and other critical measurements.
Engine Type:
Four-stroke, SOHC, air-cooled
Bore X Stroke:
83.0 mm x 64.5 mm (typical for this engine family, confirm in manual)
Compression Ratio:
9.2:1 (typical, confirm in manual)
Horsepower:
Approx. 20-25 HP (estimate, exact figures not provided in product info)
Torque:
Approx. 20-25 lb-ft (estimate, exact figures not provided in product info)
Fuel Delivery:
Mikuni BS34 Carburetor (typical, confirm in manual)
Fuel Type:
Unleaded gasoline
Ignition System:
CDI (Capacitor Discharge Ignition)
Oil Type:
Yamalube 4 (or equivalent SAE 10W-40 API SG or higher) - **Specific recommendation in manual**
Engine Oil Capacity:
Approx. 1.8 L (confirm exact figure and filter change capacity in manual)
Transmission Type:
Automatic (Continuously Variable Transmission - Ultramatic with torque converter)
Drive System:
Shaft Drive (2WD or 4WD depending on specific YFM350FX variant)
Gear Reduction:
High/Low range and Reverse (typical for this class)
Transmission Oil Type:
Yamaha's recommended Gear Oil (specific grade and spec in manual)
Transmission Oil Capacity:
Confirm specific capacity in manual (typically for final drive/gearbox)
Overall Length:
Approx. 1994 mm (78.5 in) - **Confirm specific model year in manual**
Overall Width:
Approx. 1095 mm (43.1 in) - **Confirm specific model year in manual**
Overall Height:
Approx. 1100 mm (43.3 in) - **Confirm specific model year in manual**
Wheelbase:
Approx. 1280 mm (50.4 in) - **Confirm specific model year in manual**
Dry Weight:
Approx. 235 kg (518 lbs) - **Confirm specific model year in manual**
Ground Clearance:
Approx. 150 mm (5.9 in) - **Confirm specific model year in manual**
Front Rack Capacity:
Specify capacity in manual (often around 45 kg / 99 lbs)
Rear Rack Capacity:
Specify capacity in manual (often around 85 kg / 187 lbs)
Towing Capacity:
Specify capacity in manual (typically limited for ATVs, often around 200-300 kg)
Braking System:
Hydraulic disc brakes front and rear (specific number of calipers and rotor size in manual)
Parking Brake:
Mechanical parking brake (location and mechanism in manual)
Lighting:
Dual Halogen headlights, taillight, brake light (bulb types and specifications in manual)
Seatbelt:
N/A (ATVs typically do not have seatbelts, but rollover protection might be discussed in context of safe operation)
Rollover Risk:
Emphasis on safe riding practices and terrain suitability due to inherent ATV design.
Infotainment System:
N/A (Basic utility/recreational ATV, no integrated infotainment system)
Driver Assistance Features:
N/A (Focus on mechanical systems and rider input, not electronic driver aids)
Connectivity Options:
N/A
Diagnostic Capabilities:
Manual provides extensive diagnostic procedures for mechanical and electrical systems using standard tools and visual inspection.
Oil Change Interval:
Typically every 100-150 hours or 6 months (precise interval in Owners Manual section)
Air Filter Cleaning:
Check and clean every 20-30 hours or as needed in dusty conditions (detailed in Owners Manual)
Spark Plug Replacement:
Replace every 100-150 hours or annually (confirm in Owners Manual)
Valve Adjustment:
Check clearance every 100-150 hours or as recommended (detailed in Service Manual)
Brake Fluid Type:
DOT 3 or DOT 4 (confirm specific recommendation in manual)
Coolant Type:
N/A (Air-cooled engine)
Carburetor Issues:
Can be prone to clogging with improper fuel storage or maintenance, leading to poor running conditions. Manual details cleaning and tuning.
Cvt Belt Wear:
Normal wear and tear, requires inspection and potential replacement as per schedule. Manual guides inspection and replacement.
Electrical Connections:
Corrosion in connectors can occur in wet environments, requiring inspection and cleaning. Wiring diagrams are crucial for diagnosis.
Brand Philosophy:
Yamaha's commitment to performance, reliability, and rider enjoyment in its powersports products.
Wolverine Lineage:
The Wolverine line has evolved from earlier Yamaha utility and sport ATVs, focusing on a blend of capability and comfort. The 350FX represents a mid-size offering in this range.
Production Years:
Specific production years covered by this manual are not explicitly stated but likely span a significant period of the YFM350FX's lifecycle (e.g., early to mid-2000s). The manual would detail applicable model years.
Manufacturing Location:
Likely manufactured by Yamaha Motor Corporation in Japan or their international facilities.
