Market Segment:
High-performance utility ATVs, known for their off-road capability, power, and comfort.
Key Competitors:
Honda Foreman/Rancher, Polaris Sportsman, Can-Am Outlander, Kawasaki Brute Force.
Vehicle Highlights:
Fuel Injection (FI) for improved throttle response and efficiency, Electric Power Steering (EPS) on some models, Independent Front Suspension (IFS), powerful engines, durable construction.
Benefits To Owner:
Empowers owners to perform their own maintenance and repairs, saving money on labor costs. Provides in-depth knowledge for accurate diagnostics and efficient repairs, reducing downtime.
Primary Coverage:
Repair, Service, Maintenance, Troubleshooting
Component Coverage:
Engine, Fuel System, Lubrication, Cooling, Transmission, Drive Chain, Sprockets, Steering, Shocks, Bodywork, Intake, Exhaust, Electrical System
Estimated Page Count:
Varies by specific model, typically 300-600 pages for OEM service manuals
Manual Type:
OEM Factory Service/Repair Manual
Engine Systems:
Complete engine overhaul, piston, rings, cylinder, valve train, camshaft, crankshaft, timing, ignition system, starting system, charging system
Fuel System:
Fuel injection system (FI), fuel pump, injectors, throttle body, sensors, fuel lines, fuel tank, fuel filter
Lubrication Cooling:
Oil pump, oil filter, lubrication passages, radiator, coolant, water pump, thermostat, cooling fan
Transmission Drive:
Automatic transmission (Ultramatic®), clutch, drive belts, gear reduction, differentials, driveshafts, CV joints, final drive
Steering Suspension:
Steering column, tie rods, ball joints, wheel bearings, front and rear suspension arms, shock absorbers, springs
Electrical Electronics:
Wiring diagrams, battery, stator, regulator/rectifier, lighting, starter motor, ignition coils, ECU (Engine Control Unit), sensors (TPS, MAP, etc.), diagnostic codes
Bodywork Chassis:
Frame, body panels, fenders, racks, seats, controls, skid plates
Routine Maintenance:
Oil changes, filter replacements, chain adjustments, tire pressure, brake checks, fluid level checks, spark plug service
Diagnostic Troubleshooting:
Step-by-step troubleshooting guides, diagnostic error codes, electrical system diagnostics, fuel system diagnostics
Repair Rebuild:
Engine rebuild procedures, transmission disassembly and assembly, suspension component replacement, electrical component repair
Installation Removal:
Engine removal and installation, transmission removal and installation, component replacement procedures
Depth:
Comprehensive, from basic maintenance to complete engine and transmission rebuilds, including electrical system diagnostics and component-level troubleshooting.
Engine Type:
4-stroke, SOHC, 4-valve, liquid-cooled, single-cylinder
Bore X Stroke:
94.0 mm x 77.5 mm
Engine Type:
4-stroke, DOHC, 4-valve, liquid-cooled, single-cylinder
Bore X Stroke:
100.0 mm x 85.9 mm
Horsepower Estimate:
Approx. 40-45 HP for 550FI, Approx. 50-55 HP for 700FI (estimates vary based on tuning and conditions)
Fuel Delivery:
Mikuni 44mm throttle body with sub-throttle valve and dual injectors
Fuel Type:
Unleaded gasoline, octane rating 87 or higher
Ignition System:
DC-CDI (Digital C.D. Ignition)
Cooling Method:
Liquid-cooled with fan
Display Panel:
Digital LCD meter with features like odometer, trip meter, hour meter, clock, fuel gauge, 4WD/2WD indicator, diff lock indicator.
Power Steering:
Electric Power Steering (EPS) available on some 2009 models (e.g., YFM7FGPX), reducing steering effort and fatigue.
Diagnostic Port:
Diagnostic connector for fault code retrieval and engine data monitoring.
Initial Service:
Break-in service typically recommended at 100-200 miles or 20-30 hours (refer to owner's manual for exact break-in procedure).
Engine Oil Change:
Every 1000 miles or 6 months, or more frequently under severe conditions (check manual).
Air Filter Cleaning:
Check and clean at 100 miles and every 500 miles thereafter, or more frequently in dusty conditions.
Spark Plug Replacement:
Approximately every 2000 miles or 12 months (refer to manual for specific plug type and gap).
Engine Oil Capacity:
Approx. 2.2 L (2.3 US qt) with filter change (check manual).
Coolant Type:
Yamaha-specified liquid cooled engine antifreeze coolant (ethylene glycol based) or equivalent.
Common Wear Items:
Drive belts (Ultramatic®), wheel bearings, ball joints, tie rod ends, brake pads due to typical aggressive use.
Potential Fi Issues:
Clogged injectors or fuel pump issues if fuel is not kept clean; sensor malfunctions requiring diagnostic tools.
Manufacturer:
Yamaha Motor Company, Ltd.
Legacy:
Known for innovation, reliability, and performance across motorcycles, ATVs, and other powersports vehicles.
Grizzly Lineage:
The Grizzly line has been a benchmark in the utility ATV market since its introduction, evolving with fuel injection, independent suspension, and enhanced comfort.
Manufacturing Location:
Typically manufactured in Japan or USA.
