Category:
High-performance utility ATV
Target User:
Enthusiasts, farmers, hunters, recreational riders requiring robust off-road capability
Key Competitors:
Honda Foreman/Rancher, Polaris Sportsman, Can-Am Outlander
Vehicle Features:
Fuel injection, selectable 4WD, independent rear suspension, powerful engine, electronic power steering (on some trims)
Manual Value Proposition:
Enables DIY maintenance, repairs, and customization, saving on labor costs and ensuring proper vehicle upkeep for longevity and performance.
Geographical Coverage:
Global (primarily North American and European specifications)
Estimated Pages:
Hundreds (specific count not provided, but described as comprehensive)
Type:
Comprehensive Service and Repair Manual
Format:
PDF (Portable Document Format)
Engine Systems:
Engine overhaul, top-end and bottom-end components, cooling system, lubrication system, fuel injection system, ignition system, emissions control
Drivetrain Systems:
Transmission (Ultramatic automatic), final drive, differential, drive shafts, CV joints, 4WD system engagement
Chassis Systems:
Suspension (front and rear), steering system, braking system (front and rear hydraulic disc), wheels and tires
Electrical Systems:
Wiring diagrams, lighting system, charging system (stator, regulator/rectifier), starting system (starter motor, starter solenoid), battery, fuses, relays, electronic control unit (ECU)
Body And Frame:
Frame inspection and repair, body panels, seat, handlebars, racks, fenders
Maintenance Procedures:
Routine checks, fluid level checks and changes, filter replacements (air, oil), lubrication points, spark plug replacement, brake pad inspection and replacement
Repair Procedures:
Engine rebuilding, transmission overhaul, carburetor/injector cleaning and testing, suspension component replacement, brake caliper service, electrical component troubleshooting and replacement
Troubleshooting Guides:
Systematic diagnostic procedures for common and uncommon issues, fault code interpretation (if applicable), symptom-based troubleshooting
Depth:
Complete overhaul and restoration. Covers everything from basic adjustments to full engine and transmission rebuilds, including detailed specifications and torque values.
Engine Type:
4-stroke, SOHC, liquid-cooled, 4-valve, single-cylinder
Engine Displacement:
471 cc (28.7 ci)
Bore X Stroke:
95.0 mm x 67.0 mm (3.74 in x 2.64 in)
Fuel Delivery:
Mikuni (throttle body type) 33 mm throttle body with EFI (Electronic Fuel Injection)
Horsepower Estimate:
Approx. 30-35 hp (specific dyno figures vary)
Torque Estimate:
Approx. 30-35 lb-ft (specific dyno figures vary)
Fuel Type:
Unleaded gasoline, Octane Rating 87 or higher
Fuel Tank Capacity:
4.0 US gal (15.2 L)
Cooling Method:
Liquid-cooled
Coolant Type:
Yamaha All-Weather Super Coolant (or equivalent ethylene glycol based)
Oil Type:
Yamalube 4W SAE 10W-30 API SG or higher (specific viscosity may vary by temperature)
Oil Capacity:
1.90 US qt (1.8 L) without filter change, 2.10 US qt (2.0 L) with filter change
Transmission Type:
Ultramatic automatic continuously variable transmission (CVT) with engine braking
Drive System:
Shaft drive, 2WD/4WD with limited-slip front differential
Gear Selection:
H (High), L (Low), N (Neutral), R (Reverse), P (Park)
Differential Lock:
Electronic engagement for 2WD/4WD and front differential lock
Transmission Fluid Type:
Yamalube Gear Oil 10W-40 (or SAE 80 API GL-4 gear oil)
Final Drive Fluid Capacity:
0.18 US qt (0.17 L)
Safety Certifications:
CE compliant (Europe), EPA compliant (USA)
Braking System:
Hydraulic disc brakes front and rear, sealed hub design
Parking Brake:
Mechanical disc brake, located on rear drive shaft
Lighting:
Dual 30W halogen headlights, 15W brake/tail light
Rollover Protection:
N/A (Standard ATV design, operator responsibility applies)
Seatbelt Anchorage:
N/A (Standard ATV design, operator responsibility applies)
Infotainment Features:
N/A (Utility ATV, focus is on functionality)
Electronic Power Steering Eps:
Available on some trims (e.g., EPS models), reducing steering effort and fatigue.
Charging Ports:
Typically includes a 12V accessory outlet for charging devices.
Oil Change Interval:
Every 1,000 miles or 6 months, whichever comes first. Check manual for specific conditions.
Air Filter Cleaning:
Every 1,000 miles or 6 months. Clean and re-oil. Replace if damaged.
Spark Plug Replacement:
Inspect every 3,000 miles or 24 months. Replace as needed. Recommended plug: NGK CR7E
Brake Fluid Flush:
Every 2 years or 12,000 miles. Recommended fluid: DOT 3 brake fluid.
Valve Adjustment:
Inspect every 6,000 miles or 48 months.
Engine Oil Specification:
Yamalube 4W SAE 10W-30 API SG or higher
Transmission Oil Specification:
Yamalube Gear Oil 10W-40 (or SAE 80 API GL-4 gear oil)
Coolant Specification:
Yamaha All-Weather Super Coolant (or 50/50 mix of ethylene glycol and distilled water)
Common Wear Items:
Brake pads, air filters, drive belts (CVT), suspension bushings
Potential Electrical Issues:
Voltage regulator/rectifier failures can occur on some Yamaha models, leading to charging system problems. Check wiring harness integrity.
Cv Joint Wear:
Exposure to mud and water can accelerate wear on CV boots and joints. Regular inspection and maintenance are crucial.
Manufacturer:
Yamaha Motor Corporation
Heritage Focus:
Known for high-quality engines, durability, and innovation in powersports.
Grizzly Lineage:
The Grizzly line is Yamaha's flagship utility ATV series, known for its ruggedness and off-road prowess.
550 Introduction:
The 550 model, introduced as an evolution from smaller displacement models, offered a balance of power and efficiency, particularly with the adoption of fuel injection.
Assembly Location:
Primarily Japan and USA (manufacturing locations can vary)
Production Years:
The 550 model was produced roughly from 2009 to 2015, with 2009-2010 being the initial release years.
