Target Audience:
DIY mechanics, ATV enthusiasts, Yamaha Bruin owners seeking to perform their own maintenance and repairs
Value Proposition:
Significant cost savings compared to dealer or independent mechanic labor charges; empowers owners with knowledge
Core Benefit:
Enables owners to perform servicing and repairs, saving thousands of dollars
Information Quality:
Specific to the model, detailed, and presented in an easy-to-understand format
Engine Mechanical:
Engine Removal/Installation, Cylinder Head/Valve Train, Engine Block, Engine Lubrication, Valve Timing Procedures, Chain & Gear Replacement, Tensioner Adjustments, Tightening Torques, Timing Marks, Valve Timing Instructions, Tensioner Release & Reset Methods, Chain Routing & Sprocket/Gear Valve Timing Marks
Fuel And Emissions:
Fuel and Emissions, Fuel System Components, Carburetor/Fuel Injection Servicing, Emissions Control Systems
Cooling And Heating:
Cooling and Heating Systems, Radiator, Fan, Thermostat, Coolant Flow
Drivetrain:
Transaxle, Differential, Driveshaft, Clutch, Manual Transmission, Automatic Transmission
Suspension And Steering:
Suspension Systems (Front and Rear), Steering System, Wheel Alignment
Brakes:
Brake System Overhaul, Brake Pad/Shoe Replacement, Brake Fluid Servicing, ABS (if equipped)
Electrical And Ignition:
Electrical System, Ignition System, Wiring Diagrams, SRS (Supplemental Restraint System)
Body And Accessories:
Body Panels, Chassis Components, Heater and Air Conditioning, Automatic Climate Control
Exhaust And Intake:
Intake Manifold, Exhaust System, Emissions Control Components
Accessory Installation:
May include guidance for common accessory installations or wiring points.
Routine Maintenance:
Included (e.g., oil changes, filter replacements, lubrication)
Tune Up Procedures:
Included (e.g., spark plug service, air filter replacement, carburetor adjustment)
Engine Repair:
Comprehensive engine repair procedures
Transmission Repair:
Manual and automatic transmission repair procedures
Electrical Troubleshooting:
Included with wiring diagrams for diagnostics
Suspension And Steering Repair:
Detailed repair and adjustment procedures
Brake System Service:
Complete brake system maintenance and repair
General Instructions:
General Removal & Installation Instructions, Safety Precautions
Depth Of Coverage:
Comprehensive (covers all repairs and maintenance, akin to dealer/mechanic manuals)
Diagnostic Capabilities:
Advanced diagnostics supported through detailed procedures and specifications
Rebuild Procedures:
Included for major components like engine and transmission
Special Tools Included:
Procedures often require or suggest specific Yamaha special tools, which are referenced in the manual.
Tightening Torques:
Specific torque values for all critical fasteners are provided, essential for proper assembly and preventing damage.
Wiring Diagrams:
Comprehensive wiring diagrams for electrical system troubleshooting and repair are included.
๐ Manual Specifications
Compatibility:
Compatible with PC/MAC using Windows (XP, NT, 2000, Vista, Windows 7, etc.)
Print Quality:
High Resolution (suitable for printing)
Binding Type:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Ease Of Use:
Easy to use, accessible via email opening
โ๏ธ Engine Specifications
Engine Type:
4-stroke, SOHC (Single Overhead Cam), Single Cylinder
Bore X Stroke 350:
Approx. 83 mm x 64.5 mm (details in manual)
Bore X Stroke 400:
Approx. 95 mm x 68.6 mm (details in manual)
Horsepower Estimate 350:
Approx. 20-25 HP (specific output varies by year/tuning)
Horsepower Estimate 400:
Approx. 25-30 HP (specific output varies by year/tuning)
Torque Estimate:
Not specified, but substantial low-end torque typical for ATVs
Fuel Delivery 350:
Carburetor (specific model like Mikuni VM32 likely, details in manual)
Fuel Delivery 400:
Carburetor (specific model likely, details in manual)
Cooling Method:
Liquid-cooled
Engine Oil Change:
Typically every 6 months or 1,000 miles / 100 hours (refer to manual for precise intervals)
Air Filter Cleaning:
Frequent checks recommended, especially in dusty conditions (cleaning/replacement intervals in manual)
Spark Plug Replacement:
Refer to manual for mileage/time interval
Engine Oil Type:
Yamalube 4 (or SAE 20W-40 API SG or higher) - check manual for exact specification
Engine Oil Capacity:
Approximately 1.8 L (1.9 US qt) for 350, slightly more for 400 (refer to manual)
Coolant Type:
Permanent type antifreeze with high quality inhibitor (e.g., ethylene glycol based, 50/50 mix with distilled water) - confirm in manual
Common Wear Items:
Brake pads, drive belts (if applicable for secondary clutch), wheel bearings, tie rod ends, universal joints (U-joints) on driveshaft
Potential Problems Addressed By Manual:
Carburetor gumming, electrical connector corrosion, suspension component wear, overheating issues (due to cooling system maintenance)
