Market Segment:
Mid-size utility ATV (All-Terrain Vehicle)
Key Competitors:
Honda FourTrax 350, Suzuki Vinson 500, Polaris Sportsman 400/500 (during its production years)
Target Audience:
Recreational riders, utility users, farmers, hunters
Core Appeal:
Reliability, ease of use, balanced performance, affordability
Applicable Model Years:
2003, 2004, 2005, 2006, 2007, 2008
Estimated Page Count:
Detailed, likely 300-500+ pages (typical for comprehensive factory service manuals, size mentioned up to 4000MB)
Manual Type:
Factory Service Manual / Workshop Manual / Repair Guide
Language:
English (implied by product description)
File Format:
PDF (possibly zipped/compressed)
Engine Mechanical:
Engine disassembly, inspection, assembly, piston, rings, cylinder, crankshaft, camshaft, valve train, timing
Fuel System:
Carburetor operation, adjustment, cleaning, fuel pump, fuel lines, fuel tank
Cooling System:
Radiator, fan, thermostat, coolant, hoses, water pump
Drivetrain:
Transmission, gearbox, drive shafts, differential, final drive, clutch (if applicable)
Chassis And Suspension:
Frame, swingarm, front forks, rear shock absorber, suspension tuning
Brakes:
Hydraulic brake system, master cylinder, calipers, brake lines, brake pads, rotor inspection
Electrical System:
Ignition system, starter motor, battery, charging system (stator, regulator/rectifier), lighting, switches
Wiring Diagrams:
Comprehensive color-coded wiring diagrams for all electrical circuits
Troubleshooting:
Systematic diagnostic procedures for common and uncommon problems
Maintenance:
Regular service, oil changes, filter replacement, lubrication, valve adjustments
Adjustments:
Carburetor idle speed, mixture, brake lever free play, throttle cable
Repair:
Component-level repair and replacement for all major systems
Rebuild:
Engine rebuild, transmission overhaul, carburetor rebuild
Diagnosis:
Identifying causes of performance issues, electrical faults, and mechanical failures
Technical Depth:
Comprehensive, covering everything from basic preventative maintenance to complete engine and transmission overhauls, suitable for professional technicians and advanced DIYers.
File Size:
Potentially large, up to 4000MB (requires adequate storage and fast internet)
Printability:
Printable on any computer and printer
Illustrations:
Illustrated with clear step-by-step instructions, zoomable illustrations, detailed component explosions, exploded views
Binding Type:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Compatibility:
Compatible with all operating systems (Windows, Linux, Mac)
Searchability:
Likely text-searchable PDF for efficient information retrieval
Licensing Restrictions:
No restrictions on printing or saving/burning to disc
Engine Type:
Four-stroke, SOHC, 2-valve
Engine Displacement:
348cc (350 class)
Bore X Stroke:
83 mm x 64.5 mm (typical for this engine family)
Compression Ratio:
9.1:1 (typical for this engine family)
Cooling System:
Liquid-cooled
Horsepower Estimate:
Approx. 21-24 HP (at crank, exact figures vary)
Torque Estimate:
Approx. 28-30 lb-ft (at crank, exact figures vary)
Fuel Delivery:
Carburetor (Mikuni BSR33, single)
Fuel Type:
Unleaded gasoline, minimum octane rating 87
Ignition System:
CDI (Capacitor Discharge Ignition)
Starting System:
Electric starter, Recoil backup starter
Transmission Type:
Automatic (Ultramatic®)
Gear Selection:
Hi, Lo, Neutral, Reverse
Drive System:
Shaft drive
Engine Braking:
Engine braking provided by the Ultramatic® transmission
Transmission Fluid Type:
Yamaha Yamalube 4 (or equivalent SAE 10W-30 API SG, SE, SF, or SG type oil)
Transmission Fluid Capacity:
Approx. 1.5 liters (refer to manual for exact capacity)
Dry Weight:
Approx. 242 kg (533.5 lbs) for 4x4, slightly less for 2x4
Curb Weight:
Likely around 260-270 kg (573-595 lbs) including fluids and battery
Max Load Capacity:
Refer to manual, typically around 200-250 kg for rider and cargo
Length:
Approx. 1,995 mm (78.5 in)
Width:
Approx. 1,075 mm (42.3 in)
Height:
Approx. 1,120 mm (44.1 in)
Wheelbase:
Approx. 1,230 mm (48.4 in)
Ground Clearance:
Approx. 261 mm (10.3 in)
Front Rack Capacity:
Approx. 45 kg (99 lbs)
Rear Rack Capacity:
Approx. 85 kg (187 lbs)
Front Tire Size:
AT25x8-12
Rear Tire Size:
AT25x10-12
Wheel Type:
Stamped steel
Safety Certification:
Meets ANSI/SVIA requirements (typical for ATVs of this era)
Braking System:
Hydraulic disc brakes front and rear, foot-operated rear brake, left-hand lever front brake
Lighting:
Dual 30W headlights, 5W/21W taillight/brake light
Throttle Limiter:
Adjustable throttle stop screw for new riders
Infotainment Features:
Basic instrumentation: speedometer, odometer, trip meter, neutral indicator, reverse indicator, engine hour meter (may vary by trim).
Driver Assistance Features:
None (typical for ATVs of this era, emphasis is on utility and off-road capability)
Connectivity Features:
None
Engine Oil Change:
Every 1,000 km or 3 months (whichever comes first)
Air Filter Cleaning:
Every 1,000 km or 3 months, replace as needed
Spark Plug Replacement:
Every 5,000 km or 1 year
Valve Clearance Check:
Every 4,000 km or 2 years
Engine Oil Type:
Yamalube 4 (or equivalent SAE 10W-30 API SG, SE, SF, or SG type oil)
Engine Oil Capacity:
Approx. 1.9 liters (with filter change)
Coolant Type:
Yamaha Coolant (or equivalent ethylene glycol-based coolant, 50/50 mix with distilled water)
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid
Common Wear Items:
Brake pads, wheel bearings, tie-rod ends, drive shaft U-joints (on 4x4 models)
Potential Carburetor Issues:
Gumming of carburetor jets with ethanol-blended fuels if not stored properly, requiring cleaning.
Oil Filter Part Number:
Yamaha 5GH-13440-00-00 (or equivalent aftermarket)
Air Filter Part Number:
Yamaha 5TG-14451-00-00 (or equivalent aftermarket)
Grease Points:
Swingarm pivot, steering stem bearings, suspension linkage points (refer to manual for specifics)
Manufacturer Reputation:
Yamaha is renowned for its reliable and durable engines and powertrains across motorcycles, ATVs, and watercraft.
Predecessor:
Likely evolved from previous Yamaha 300-class ATVs, sharing engine and chassis components.
Successor:
Was succeeded by models like the Yamaha Grizzly 350 and later the Grizzly 400/450, which featured more modern designs and features.
Production Period:
2003-2008
Manufacturing Location:
Primarily Japan (Yamaha Motor Corporation)
