Target Audience:
DIY mechanics, professional technicians, ATV enthusiasts, owners seeking in-depth maintenance and repair knowledge.
Value Proposition:
Provides factory-level diagnostic and repair information, equivalent to what official Yamaha dealerships utilize, at a fraction of the cost of dealership service.
Manufacturer Source:
Written by the manufacturers, ensuring accuracy and completeness.
Diagram Emphasis:
Features thousands of pages of diagrams for clear procedural guidance.
Accessibility:
Instant download in a user-friendly PDF format compatible with multiple operating systems.
Primary Coverage:
Workshop Service & Repair
Secondary Coverage:
Diagnostics, Maintenance, Troubleshooting
Estimated Page Count:
Thousands of pages (as stated in description)
Type:
Professional Workshop Service & Repair Manual
Digital Format:
PDF (Acrobat)
Operating Systems:
Windows & MAC compatible
Engine Systems:
Engine overhaul, top-end rebuild, bottom-end rebuild, cooling system, lubrication system, fuel system, ignition system, starting system, charging system, exhaust system.
Drivetrain Systems:
Transmission overhaul (if applicable to model variants), clutch service, driveshafts, differentials, final drive.
Chassis Systems:
Suspension (front and rear), steering system, braking system (hydraulic and mechanical components), wheels, tires.
Electrical Systems:
Wiring diagrams, lighting systems, electrical components troubleshooting, battery, starter, alternator, ignition, sensors, actuators.
Bodywork And Frame:
Body panel removal/installation, frame inspection and repair (if applicable), seat removal/installation, handle bar and controls.
Maintenance Procedures:
Oil changes, filter replacements, spark plug replacement, air filter cleaning/replacement, chain adjustment and lubrication, brake pad replacement, fluid level checks and top-ups.
Repair Procedures:
Engine component replacement (pistons, rings, valves), carburetor overhaul, transmission repair, suspension component replacement, brake caliper rebuild, electrical component diagnosis and replacement.
Diagnostic Procedures:
Troubleshooting guides based on symptoms, diagnostic trouble codes (DTCs) interpretation (if applicable to the era), testing of electrical circuits and components.
Technical Specifications:
Torque settings for all fasteners, fluid capacities, recommended fluid types, engine specifications (bore, stroke, compression ratio), electrical system voltage and current ratings.
Depth Of Coverage:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds, mirroring dealer workshop procedures.
Engine Type:
Likely single-cylinder, 4-stroke (common for Bruin models)
Displacement 350:
348cc (Yamaha's designation for the 350cc class, often a 348cc engine, e.g., YFM350 model)
Displacement 400:
386cc (Yamaha's designation for the 400cc class, likely the YFM400, which used a 386cc engine)
Horsepower:
Specific HP not provided; manual covers internal engine specifications for potential performance tuning or rebuilds.
Torque:
Specific torque not provided; manual contains torque specifications for all engine components.
Fuel Delivery:
Likely Carburetor(s) for 2004 model year, covered in detail (jetting, float levels, cleaning).
Cooling Method:
Likely air-cooled or oil-cooled, with specific radiator/oil cooler service procedures detailed.
Transmission Type:
Likely Automatic Transmission (CVT - Continuously Variable Transmission) with High/Low range and Reverse.
Transmission Options:
Not applicable for this model/year, assumed standard automatic CVT.
Cvt Service:
Manual covers CVT belt inspection/replacement, sheave maintenance, and fluid changes.
Gear Selection Mechanism:
Detailed procedures for shifter linkage adjustment and maintenance.
Overall Length:
Specifications not provided in product description; manual will contain exact measurements.
Overall Width:
Specifications not provided in product description; manual will contain exact measurements.
Overall Height:
Specifications not provided in product description; manual will contain exact measurements.
Curb Weight:
Specifications not provided in product description; manual will contain exact weight information.
Towing Capacity:
Specifications not provided in product description; manual will detail load capacities and towing limitations.
Crash Test Information:
ATVs are not typically subjected to standardized crash testing like passenger vehicles; manual will focus on component integrity and safe operation.
Braking System:
Hydraulic disc brakes (front and rear typical), covered in detail, including master cylinder, calipers, and lines.
Frame Structure:
Manual will detail frame inspection and maintenance for structural integrity.
Handlebar Design:
Procedures for safe handlebar installation and adjustments.
Infotainment System:
None (ATV, basic instrumentation: speedometer, odometer, indicator lights).
Electronic Aids:
None (typical for a 2004 utility ATV).
Connectivity Features:
None.
Lighting System:
Headlights, taillight, brake light; detailed wiring diagrams and bulb replacement procedures are included.
Engine Oil Change:
Typical intervals around 1000-2000 miles or annually, but manual will specify exact intervals and conditions.
Air Filter Service:
Regular inspection and cleaning, especially in dusty conditions, with specific intervals detailed in the manual.
Spark Plug Replacement:
Recommended replacement at intervals specified in the manual, often linked to mileage or operating hours.
Engine Oil Type 350:
Likely Yamalube 4T 10W-40 or equivalent API SG or higher, manual will confirm exact specification and capacity.
Engine Oil Type 400:
Likely Yamalube 4T 10W-40 or equivalent API SG or higher, manual will confirm exact specification and capacity.
Brake Fluid Type:
DOT 3 or DOT 4, manual will specify exact type and bleeding procedures.
Gear Oil Type:
Manual will specify appropriate gear oil for the differential/final drive units.
Common Wear Items:
CVT belt wear, brake pad and rotor wear, suspension bushings, wheel bearings, and spark plug fouling are common maintenance items covered extensively.
Carburetor Performance:
Carburetors can be susceptible to gumming or jetting issues, with detailed cleaning and adjustment procedures in the manual.
Yamaha Atv Legacy:
Yamaha has a long history of producing reliable and innovative ATVs, with models like the Warrior, Raptor, and Kodiak setting industry standards. The Bruin builds on this heritage.
Bruin Introduction:
The Bruin line, introduced in the early 2000s, was positioned as a capable utility/recreational ATV, often featuring a comfortable ride and user-friendly operation.
Manufacturing Location:
Likely manufactured in Japan or at Yamaha's global production facilities.
