Product Type:
Essential DIY and professional repair resource
Target Audience:
Yamaha Bruin 350/400 owners, ATV mechanics, repair shops
Value Proposition:
Cost savings on repairs, empowers users to maintain their vehicle, professional-grade information
Delivery:
Instant Download
Instruction Style:
Step-by-step instructions with detailed diagrams
Completeness:
Covers the entire vehicle, 'The ONLY Service Repair Workshop Manual You Will Ever Need'
Primary Coverage:
Comprehensive service and repair for Yamaha Bruin 350 400 ATVs
Secondary Coverage:
Maintenance, troubleshooting, technical specifications, diagnostics
Estimated Page Count:
Likely 400-600+ pages (typical for comprehensive workshop manuals)
Type:
Workshop Service Repair Manual
Format:
PDF (Downloadable)
Engine:
Internal engine components, cylinder head, piston, crankshaft, camshaft, timing, lubrication, cooling
Gearbox Clutch:
Clutch operation and adjustment, transmission gears, shift mechanisms, final drive
Cooling System:
Radiator, fan, coolant flow, water pump, thermostat
Fuel System:
Carburetor (likely Mikuni BSR series), fuel pump, fuel lines, fuel tank, petcock
Braking System:
Front and rear hydraulic disc brakes, master cylinders, calipers, brake lines, parking brake
Suspension:
Front independent suspension (double A-arm), rear swingarm suspension, shock absorbers, springs, bushings
Electrical System:
Battery, starter motor, alternator, ignition system, lighting, CDI unit, switches, fuses
Body Fixtures:
Frame, fenders, plastics, seat, handlebars, racks, lighting covers
Exhaust System:
Exhaust pipe, muffler, heat shields
Wheels Tires:
Wheel bearing maintenance, tire pressure, rim specifications
Wiring Diagrams:
Detailed electrical schematics for all systems
Maintenance:
Routine checks, lubrication points, filter replacements, fluid changes, valve adjustments
Repair:
Step-by-step disassembly, repair, and reassembly for all major components
Troubleshooting:
Diagnostic flowcharts, common problem identification and solutions
Technical Information:
Torque specifications, clearances, timing settings, electrical values
Depth:
Comprehensive, covering both basic maintenance and advanced mechanical/electrical repairs
Engine Type:
Four-stroke, SOHC
Displacement:
348cc (for the 350 model, the '400' in the product name may refer to a specific variant or trim designation rather than a 400cc engine)
Bore X Stroke:
Refer to manual for exact specifications (typical for this era might be around 83mm x 64.5mm)
Compression Ratio:
Refer to manual for exact specifications (likely around 9.2:1 or similar)
Horsepower:
Refer to manual for exact specifications (typically in the 20-25 HP range for this engine)
Torque:
Refer to manual for exact specifications
Carburetor Type:
Likely Mikuni BSR33 (single carburetor)
Fuel Delivery:
Fuel pump (mechanical or electric, refer to manual)
Fuel Type:
Unleaded gasoline (87 octane or higher recommended)
Ignition System:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Air-cooled with fan-assisted oil cooler
Transmission Type:
Automatic (Continuously Variable Transmission - CVT) with Ultramatic® system
Drive System:
Shaft drive (2WD or 4WD variants exist)
Gear Selection:
Forward, Neutral, Reverse
Clutch Type:
Automatic centrifugal clutch
Cvt Fluid Type:
Yamaha specified CVT fluid or equivalent (refer to manual for exact part number and specification)
Overall Length:
Refer to manual for exact specifications (typically around 75-78 inches)
Overall Width:
Refer to manual for exact specifications (typically around 43-45 inches)
Overall Height:
Refer to manual for exact specifications (typically around 43-45 inches)
Dry Weight:
Refer to manual for exact specifications (typically around 550-590 lbs)
Ground Clearance:
Refer to manual for exact specifications (typically around 8-10 inches)
Front Rack Capacity:
Refer to manual for exact specifications (typically around 66 lbs)
Rear Rack Capacity:
Refer to manual for exact specifications (typically around 132 lbs)
Atv Safety Design:
Designed with rider safety in mind, but operator caution is paramount for ATVs.
Braking System:
Hydraulic disc brakes front and rear for reliable stopping power.
Throttle Limiter:
Potential for throttle limiter screws or adjustments (refer to manual for specific models/years).
Frame Construction:
Robust steel frame designed for durability.
Lighting:
Headlights, taillight, and brake light for visibility.
Features:
Basic instrumentation: speedometer, odometer, hour meter, fuel gauge (on some models), warning lights.
Features:
N/A (Focus on mechanical and electrical systems, not advanced driver aids).
Features:
N/A (No modern connectivity features expected on this model).
Oil Change:
Refer to manual for specific mileage or hours (typically every 600-1200 miles or 100-200 hours for utility ATVs).
Air Filter Cleaning:
Recommended every 50-100 hours of operation or more frequently in dusty conditions.
Spark Plug Replacement:
Refer to manual for recommended intervals (e.g., every 2000-4000 miles or annually).
Valve Adjustment:
Typically recommended at initial break-in and then every 2000-4000 miles or as per manual.
Engine Oil Type:
Yamaha Yamalube 4 (or equivalent SAE 10W-40 API SG or higher, often with JASO MA rating for wet clutches).
Engine Oil Capacity:
Refer to manual for exact capacity (typically around 1.7-2.0 liters with filter change).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Coolant Type:
Ethylene glycol-based antifreeze coolant (refer to manual for specific mix ratio and Yamaha-approved coolant).
Cvt Belt Wear:
CVT belts can wear over time and require inspection and replacement. Hard riding or overloading can accelerate wear.
Carburetor Cleaning:
Carburetors can sometimes become clogged, especially if the ATV sits for extended periods with fuel in the tank, leading to starting or running issues.
Suspension Bushings:
Wear on suspension bushings can lead to play and noisy operation.
Manufacturer:
Yamaha Motor Company, known for innovation and quality in motorcycles, marine products, and ATVs.
Bruin Series:
The Bruin line was Yamaha's entry into the utility ATV market, known for its comfort and ease of use. It preceded models like the Grizzly.
Manufacturing Region:
Likely manufactured in Japan or by Yamaha's global manufacturing facilities.
