Vehicle Type:
All-Terrain Vehicle (ATV)
Production Years Covered:
2003, 2004, 2005, 2006, 2007, 2008
Engine Code Indication:
YFM350
Target Audience:
DIY owners, professional mechanics, service workshops
Value Proposition:
Cost savings through DIY repairs, access to factory-level information
Authenticity:
Original Yamaha factory manual
Delivery Method:
Instant digital download
Support:
Free support available for download issues
Manual Coverage Scope:
Comprehensive Service, Repair, Maintenance, and Troubleshooting
Estimated Page Count:
Detailed (Exact number not specified, but described as comprehensive)
Type:
Factory Service Manual / Workshop Manual / Repair Guide
Digital Format:
PDF (potentially zipped .zip, .rar, or .exe)
Engine Service:
Complete engine diagnosis, disassembly, inspection, and reassembly
Fuel System:
Carburetion (including jetting, float adjustment) or EFI system diagnosis and repair
Clutching And Belt System:
Variator (CVT) inspection, belt replacement, clutch service
Final Drive And 4Wd System:
Driveshaft, differential, axle inspection and repair, 4WD system engagement and service
Transmission:
Gearbox inspection, maintenance, and repair
Brakes:
Brake system inspection, hydraulic system bleeding, pad and rotor replacement, caliper service
Electrical System:
Battery, charging system, ignition system, lighting, starter system diagnosis and repair
Wiring Diagrams:
Comprehensive electrical schematics for all circuits
Body And Steering:
Frame inspection, body panel removal/installation, steering system components, alignment
Preventative Maintenance:
Detailed schedules and procedures for oil changes, filter replacements, lubrication, and inspections
Troubleshooting Guides:
Step-by-step diagnostic procedures for common and uncommon issues
Rebuild Procedures:
Complete instructions for engine, transmission, and other major component rebuilds
Component Disassembly Reassembly:
Detailed instructions with torque specifications for all major and minor components
Depth:
Factory-level detail, suitable for professional technicians and advanced DIYers
Illustrations:
Clear, step-by-step illustrated instructions with diagrams and exploded views
Compatibility:
Compatible with all operating systems (Windows 97-10, MAC), PC and MAC compatible
Accessibility:
Readable with any PDF reader
Restrictions:
No restrictions on printing or saving/burning to disc
Printability:
Printable from any computer and printer
Zoomability:
Zoomable illustrations for detailed viewing
Binding:
Digital Download (Not a physical binding)
Paper Quality:
N/A (Digital format)
Engine Type:
4-stroke, SOHC, Air-cooled
Bore X Stroke:
83.0 mm x 64.5 mm (Typical for this engine family)
Compression Ratio:
9.2:1 (Typical)
Horsepower Estimate:
Approximately 20-22 HP (Chassis Dyno estimate, varies by model year and tuning)
Torque Estimate:
Approximately 20-22 lb-ft (Chassis Dyno estimate)
Fuel Delivery:
Carburetor (Mikuni BSR33) or Electronic Fuel Injection (EFI) depending on specific model variant/year
Carburetor Size:
33mm (If carbureted)
Fuel Type:
Unleaded gasoline, minimum 87 octane
Transmission Type:
Automatic Continuously Variable Transmission (CVT) with High/Low range and Reverse
Gearbox:
N/A (CVT is standard)
Drive System:
Shaft Drive, 2WD/4WD selectable
Final Drive Ratio:
Specific ratio varies, typically around 3.8:1 for rear differential
Transmission Fluid Type:
Yamaha's recommended ATV gear oil (e.g., Yamalube Gear Oil)
Length:
Approx. 74.4 in (1890 mm)
Width:
Approx. 40.2 in (1020 mm)
Height:
Approx. 44.7 in (1135 mm)
Wheelbase:
Approx. 48.2 in (1225 mm)
Ground Clearance:
Approx. 6.3 in (160 mm)
Dry Weight:
Approx. 573 lbs (260 kg)
Curb Weight:
Approx. 600+ lbs (depending on fluids)
Front Rack Capacity:
Approx. 110 lbs (50 kg)
Rear Rack Capacity:
Approx. 198 lbs (90 kg)
Atv Safety Standards:
Compliant with ANSI/SVIA 1-2010 and 2-2010 (as applicable to the era of production)
Braking System:
Hydraulic disc brakes front and rear
Lighting:
Halogen headlights, brake light/taillight
Tires:
ATV-specific knobby tires for traction
Instrument Cluster:
Digital/analog combination meter with speedometer, odometer, trip meter, fuel gauge, and indicator lights
Transmission Features:
Shaft-driven, reliable CVT for seamless power delivery
Charging System:
12V electrical system with alternator/stator for charging battery
Engine Oil Change Interval:
Every 1,000 km or 12 months, whichever comes first (refer to manual for precise interval and conditions)
Air Filter Cleaning Interval:
Regular inspection, cleaning every 500 km or as conditions require
Spark Plug Replacement Interval:
Typically around 3,000-5,000 km or as per manual inspection
Engine Oil Type:
Yamalube 4 (or equivalent API SG, JASO MA rated 10W-40)
Engine Oil Capacity:
Approx. 1.9 L (with filter change)
Brake Fluid Type:
DOT 4 hydraulic brake fluid
Cooling System Type:
Air-cooled
Common Wear Items:
CVT belt wear, brake pad wear, suspension bushings
Potential Issues:
Carburetor gumming if not run regularly, starter solenoid failure on older units
Manufacturer Reputation:
Yamaha is a globally recognized manufacturer of motorcycles, ATVs, marine products, and musical instruments, known for reliability and performance.
Predecessor Model:
Direct successor to the Yamaha Big Bear 350 series, offering updated styling and features.
Manufacturing Origin:
Likely manufactured in Japan or through Yamaha's global production facilities.
