๐ท๏ธ Basic Information
Product Name:
Yamaha Bruin 350 4x2 ATV (2 Manual Set) 2004-2006 Owners & Factory Service Repair Workshop Manual Download PDF
Generation Identifier:
First Generation Bruin 350
Chassis Code:
Likely YFM350ER
Engine Code:
Likely 350cc air-cooled, 4-stroke, SOHC, 2-valve
Atv Segment:
Mid-size utility ATV, positioned for recreational riding and light-to-moderate work.
Key Competitors:
Honda FourTrax 350, Polaris Sportsman 400/500, Kawasaki Bayou 300/300.
Vehicle Highlights:
Torque-rich engine, comfortable seating, reliable 4x2 drivetrain, independent front suspension, electric start.
Manual Benefit:
Enables owners and technicians to perform all necessary maintenance and repairs, saving time and money.
Delivery Advantage:
Instant download upon payment, allowing immediate access to repair information.
Engine:
Complete engine overhaul, tuning, diagnostics, carburetor, lubrication, cooling system.
Transmission:
Automatic transmission (likely Ultramatic), clutch, drive shafts, differentials.
Fuel System:
Carburetor (Mikuni BSR33), fuel pump, fuel lines, fuel tank.
Electrical System:
Ignition system, battery, charging system (stator, regulator/rectifier), lighting, starter motor, wiring diagrams.
Brakes:
Front and rear hydraulic disc brakes, brake fluid, calipers, master cylinder, lines.
Suspension:
Front independent suspension (A-arms), rear swingarm, shock absorbers, springs.
Steering:
Handlebar steering system, tie rods, steering column.
Chassis Frame:
Frame inspection, welds, mounting points.
Bodywork:
Fenders, body panels, seat, racks, headlights, taillights.
Maintenance:
Oil changes, filter replacements, spark plug checks, chain/belt adjustments (if applicable), battery maintenance, tire pressure checks, general inspection.
Repair:
Engine rebuild, transmission overhaul, brake caliper replacement, carburetor tuning/rebuild, suspension component replacement, electrical component troubleshooting and repair.
Troubleshooting:
Diagnostic charts for common problems, electrical system diagnostics, engine performance issues.
Technical Specifications:
Torque specifications for all fasteners, engine timing, valve clearances, fluid capacities and types.
Depth Of Coverage:
Comprehensive A-Z coverage, suitable for both novice DIY mechanics and experienced technicians.
Diagnostic Capabilities:
Includes detailed diagnostic procedures and troubleshooting guides for identifying and resolving issues.
Visual Aids:
Step-by-step instructions with clear pictures and detailed wiring diagrams.
โ๏ธ Engine Specifications
Engine Type:
Air-cooled, four-stroke, SOHC, 2-valve
Bore X Stroke:
83.0 mm x 64.5 mm
Horsepower Estimate:
Approximately 20-22 HP (estimated, actual figures not always published for ATVs)
Torque Estimate:
Approximately 25-28 lb-ft (estimated)
Carburetor Model:
Mikuni BSR33
Fuel Delivery:
Carbureted, electric fuel pump
Ignition System:
CDI (Capacitor Discharge Ignition)
Oil Type:
Yamalube 4 (or equivalent API SG, SAE 20W-40) - specific manual to confirm.
Cooling Method:
Air-cooled
Transmission Type:
Automatic (Yamaha Ultramaticยฎ)
Drive System:
Shaft Drive, 4x2
Gear Selection:
High, Low, Neutral, Reverse
Clutch:
Automatic centrifugal clutch
Transmission Oil Type:
Yamaha Gear Oil (or equivalent SAE 80 hypoid gear oil) - specific manual to confirm.
Engine Oil Change:
Every 1,000 km or 6 months (typical for Yamaha ATVs, consult manual for exact specification).
Air Filter Cleaning:
Every 500 km or 3 months, or more frequently in dusty conditions.
Spark Plug Check:
Every 1,000 km or 6 months.
Valve Clearance Check:
Every 5,000 km or 2 years.
Engine Oil Capacity:
Approx. 2.1 liters (with filter change) - confirm with manual.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid.
Common Wear Items:
Brake pads, wheel bearings, tie rod ends, drive shaft boots.
Potential Carburetor Issues:
Can be prone to clogging if fuel is not kept clean, requiring periodic cleaning and adjustment.
Electrical Component Longevity:
Regulator/rectifier and stator can be points of failure over time; manual will aid in diagnosis.