Segment:
Recreational/Utility ATV
Target Audience:
Owners of the Yamaha YFM 350 Wolverine (1988 model) seeking maintenance, repair, and operational knowledge.
Value Proposition:
Provides comprehensive, factory-level information to enable owners to maintain and repair their ATV, saving time and money on professional services.
Completeness:
Covers all major systems and procedures required for upkeep and repair.
Accessibility:
Digital format with wide device compatibility and user-friendly features.
Knowledge Enhancement:
Aims to empower owners with knowledge to prevent future issues and understand their vehicle better.
Engine Mechanical:
Comprehensive coverage including disassembly, inspection, repair, and reassembly of engine components.
Fuel System:
Detailed information on the carburetor, fuel lines, and fuel delivery.
Cooling System:
Procedures for checking and maintaining the cooling system (likely air-cooled for this model, focusing on airflow and heat dissipation).
Drivetrain:
Covers the gearbox, differential (if applicable), and drive shafts/chains.
Electrical System:
Wiring diagrams, ignition system, lighting, charging system, and starter motor.
Chassis And Suspension:
Framework, suspension components (shocks, springs, linkages), steering system, and wheels.
Brakes:
Front and rear brake system maintenance and repair (drum or disc, as applicable).
Bodywork And Trim:
Information on fairings, fenders, seat, and other body components.
Routine Maintenance:
Oil changes, filter replacements, chain adjustments, spark plug checks, and general inspections.
Component Diagnosis:
Step-by-step troubleshooting guides for identifying and resolving common problems.
Disassembly And Reassembly:
Detailed instructions for taking apart and putting back together major vehicle systems and components.
Adjustment Procedures:
Carburetor tuning, brake adjustments, clutch adjustments, and suspension settings.
Torque Specifications:
Crucial torque values for fasteners and critical components.
Wiring Diagrams:
Comprehensive electrical schematics for accurate diagnostics.
Depth:
Comprehensive, covering both basic maintenance and in-depth repair procedures suitable for DIY enthusiasts and professional technicians.
Compatibility:
PDF format, viewable on all Windows and Mac versions, smartphones, and tablets with Adobe PDF Reader.
Features:
Searchable text, zoom in/out functionality, printable pages.
Quality:
Digital, ensuring clarity and legibility across all pages.
Type:
N/A (Digital Format)
Type:
N/A (Digital Format)
Engine Type:
Four-stroke, SOHC
Displacement:
348 cc (approx.)
Cooling Method:
Air-cooled
Bore X Stroke:
Refer to manual for exact specifications
Compression Ratio:
Refer to manual for exact specifications
Horsepower:
Refer to manual for exact specifications (typically around 20-25 HP for this class)
Torque:
Refer to manual for exact specifications
Carburetor Type:
Single Carburetor (e.g., Mikuni BS34)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
Refer to manual for exact specifications (typically 2.5-3.5 gallons)
Oil Type:
Yamalube 4 or equivalent SAE 10W-30 API SG or higher (Consult Manual for specific recommendations)
Oil Capacity:
Refer to manual for exact specifications
Ignition System:
CDI (Capacitor Discharge Ignition)
Spark Plug Gap:
Refer to manual for exact specifications (typically 0.6-0.7 mm)
Spark Plug Type:
Refer to manual for exact specifications (e.g., NGK CR7HSA or equivalent)
Length:
Refer to manual for exact specifications (typically around 70-75 inches)
Width:
Refer to manual for exact specifications (typically around 40-45 inches)
Height:
Refer to manual for exact specifications (typically around 40-45 inches)
Dry Weight:
Refer to manual for exact specifications (typically around 450-500 lbs)
Curb Weight:
Refer to manual for exact specifications
Payload Capacity:
Refer to manual for exact specifications
Front Tire Size:
Refer to manual for exact specifications (e.g., AT25x8-12 or similar)
Rear Tire Size:
Refer to manual for exact specifications (e.g., AT25x12-10 or similar)
Wheel Bolt Pattern:
Refer to manual for exact specifications
Front Suspension Type:
Independent double-wishbone with coil-over shock absorbers
Rear Suspension Type:
Swingarm with Monoshock absorber
Ground Clearance:
Refer to manual for exact specifications (typically around 6-8 inches)
Atv Safety Standards:
Follows industry safety recommendations for ATVs of its era. Manual provides essential safety warnings and operating procedures.
Braking System:
Hydraulic disc brakes (front and rear, depending on configuration) or drum brakes.
Lighting:
Headlights, taillight/brake light for visibility.
Frame Construction:
Robust steel frame designed for off-road durability.
Engine Oil Change:
Every 100 hours or annually (Consult Manual for exact intervals and conditions)
Air Filter Cleaning:
Every 20 hours or as needed based on operating conditions (Consult Manual)
Spark Plug Inspection:
Every 50 hours or annually (Consult Manual)
Chain Lubrication And Adjustment:
Every 20 hours or before long rides (Consult Manual)
Engine Oil:
Yamalube 4 or equivalent SAE 10W-30 API SG or higher
Transmission Oil:
Yamaha Gear Oil 10W-40 or equivalent API GL-4 SAE 80
Brake Fluid:
DOT 3 or DOT 4 (Consult Manual for exact specification)
Carburetor Fouling:
Common with older fuel systems; requires cleaning and potential jetting adjustments.
Chain Wear:
Regular adjustment and lubrication are crucial to prevent premature wear and breakage.
Suspension Component Wear:
Bushings and seals can wear over time; manual provides inspection and replacement procedures.
Preventative Maintenance:
Emphasizes proactive care to ensure longevity and optimal performance of the ATV.
Yamaha Atv Legacy:
Yamaha has a long-standing reputation for producing reliable and capable ATVs, with the Wolverine line being a key part of their history.
Wolverine Line Context:
The YFM 350 Wolverine was a popular model in the late 1980s and early 1990s, known for its versatility and robust performance in the recreational ATV market.
Production Period:
The YFM 350 Wolverine was produced through the late 1980s and into the 1990s, with the 1988 model being a significant iteration.
