Segment:
Utility ATV (All-Terrain Vehicle)
Target Audience:
Recreational riders, farmers, hunters, utility users
Key Competitors:
Honda FourTrax, Suzuki King Quad, Polaris Sportsman, Kawasaki Prairie
Atv Features:
4x4 drivetrain, automatic transmission, independent front suspension (IFS), reliable engine
Quality Claim:
BEST manuals on Tradebit, buy with confidence, not incomplete cheap versions
Comparison:
Similar to Factory Workshop Manuals or CDROM Manuals used in repair shops
Engine Mechanical:
Complete overhaul, disassembly, assembly, inspection, timing, lubrication, cooling system
Fuel System:
Carburetor tuning, cleaning, rebuilding, fuel pump, fuel lines, fuel tank
Ignition System:
Ignition coil, CDI unit, spark plug, timing, troubleshooting
Transmission Drivetrain:
Automatic transmission (V-belt type), clutch, gear selection, final drive, driveshafts, CV joints
Suspension Steering:
Front and rear suspension components, shock absorbers, steering knuckles, tie rods, wheel alignment
Brakes:
Hydraulic brake system, front and rear calipers, brake discs, master cylinder, brake lines, bleeding procedures
Electrical System:
Wiring diagrams, battery, starter motor, alternator, lighting, switches, fuses, relays, troubleshooting electrical faults
Chassis Frame:
Frame inspection, repair, body panels, fenders, seats
Cooling System:
Radiator, fan, hoses, coolant, thermostat operation
Exhaust System:
Muffler, exhaust pipe, heat shields
Wheels Tires:
Tire pressure, wheel nut torque, wheel bearing replacement
Maintenance:
Oil change, filter replacement, spark plug service, air filter cleaning/replacement, brake pad inspection/replacement, chain adjustment (if applicable), general lubrication
Troubleshooting:
Diagnostic charts, common problem identification and solutions for all major systems
Repair:
Step-by-step instructions for component disassembly, cleaning, inspection, repair, and reassembly
Overhaul:
Complete engine rebuild procedures, transmission overhaul
Diagnostics:
Component testing, electrical system diagnostics, fuel system testing
Depth:
Comprehensive (Factory level detail for professionals and advanced DIYers)
Detail Level:
Detailed specifications, torque values, clearances, diagnostic procedures
Engine Type:
4-Stroke, SOHC, 2-Valve
Engine Displacement:
348cc (for 350 model)
Bore X Stroke:
83 mm x 64.5 mm (Typical for 350cc class Yamaha, exact spec confirmed in manual)
Cooling System:
Liquid-cooled
Horsepower:
Approx. 20-22 HP (Varies by tuning and specific model year)
Torque:
Approx. 27 Nm @ 5500 RPM (Varies by tuning and specific model year)
Fuel Delivery:
Carburetor (Teikei Y28P or similar, confirmed in manual)
Fuel Type:
Unleaded gasoline, 87 octane (minimum)
Oil Type:
Yamalube 4 (or equivalent API SG or higher, SAE 10W-30 or 20W-40 based on temperature)
Oil Capacity:
Approx. 1.8 L (1.9 US qt) with filter change (exact spec in manual)
Spark Plug Type:
NGK CR7E or Denso U22FSR-U (Typical, confirm in manual)
Spark Plug Gap:
0.6-0.7 mm (0.024-0.028 in) (Typical, confirm in manual)
Transmission Type:
Automatic (Yamaha Constant Velocity Transmission - YCC-V) with Ultramatic® system
Drive Modes:
2WD/4WD selector with locking front differential
Gear Selection:
Forward (H/L), Neutral, Reverse
Engine Braking:
Strong engine braking provided by the CVT system
Final Drive:
Shaft drive with sealed u-joint
Transmission Oil Type:
Yamaha"G" Gear Oil or equivalent API GL-4 SAE 80W (for final drive gearbox)
Transmission Oil Capacity:
Approx. 0.18 L (0.19 US qt) for final drive (confirm in manual)
Length:
Approx. 76.2 inches (1935 mm)
Width:
Approx. 43.7 inches (1110 mm)
Height:
Approx. 45.3 inches (1150 mm)
Wheelbase:
Approx. 49.6 inches (1260 mm)
Ground Clearance:
Approx. 10.1 inches (257 mm)
Dry Weight:
Approx. 562 lbs (255 kg)
Wet Weight:
Approx. 591 lbs (268 kg) (with all fluids)
Front Rack Capacity:
Approx. 88 lbs (40 kg)
Rear Rack Capacity:
Approx. 176 lbs (80 kg)
Towing Capacity:
Approx. 1100 lbs (500 kg)
Trailer Tongue Weight:
Approx. 110 lbs (50 kg)
Front Tire Size:
AT25x8-12
Rear Tire Size:
AT25x10-12
Wheel Bolt Pattern:
4x110 mm (Standard for many Yamaha ATVs)
Infotainment System:
Basic analog gauge cluster (speedometer, odometer, fuel gauge, warning lights)
Electronic Power Steering:
Available on some higher-spec models (e.g., Bruin 350 EPS); manual will detail its diagnostics and service
Connectivity Features:
None (This is a utility ATV from the mid-2000s, designed for function over digital features)
Initial Service:
First service typically at 100 km or 1 month (check break-in recommendations in manual)
Engine Oil Change:
Every 1000 km or 6 months (whichever comes first), or more frequently under severe use
Oil Filter Replacement:
At every engine oil change
Air Filter Cleaning:
Every 500 km or 6 months (more frequently in dusty conditions)
Spark Plug Inspection:
Every 1000 km or 12 months
Brake Fluid Check:
Every 1000 km or 12 months, replace every 24 months or as needed
Coolant Replacement:
Every 24 months or 2000 km (confirm in manual)
Coolant Type:
High-quality ethylene glycol-based antifreeze, 50/50 mix with distilled water
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid
Common Wear Items:
CV joint boots, wheel bearings, brake pads, starter brushes (typical for ATVs of this age)
Potential Problems:
Carburetor jetting issues in certain altitudes/conditions, occasional CVT belt wear, charging system output (all addressable with this manual)
Manufacturer:
Yamaha Motor Corporation
Brand Reputation:
Globally recognized for reliability, performance, and innovation in powersports
Bruin Lineage:
The Bruin succeeded models like the Wolverine and paved the way for newer utility ATVs, emphasizing comfort and accessibility
Key Innovations:
Featured Yamaha's Ultramatic® CVT and Electric Power Steering (EPS) on some higher-trim models (though not explicitly stated for base 350, manual may cover variants).
Production Period:
The Bruin 350 was produced from approximately 2004 to 2006, before being largely replaced by the Grizzly line's 350cc offerings.
Manufacturing Location:
Likely manufactured in Japan or North America by Yamaha
