Vehicle Segment:
Full-size, high-performance All-Terrain Vehicle (ATV).
Target Audience:
Enthusiasts seeking off-road recreation, utility work, and trail riding.
Key Competitors:
Polaris Sportsman 700/800, Can-Am Outlander 800, Arctic Cat 700.
Engine Power:
Known for its powerful 686cc liquid-cooled, SOHC, four-stroke engine.
Transmission Type:
Yamaha's industry-leading Ultramatic® automatic transmission with engine braking.
Drivetrain System:
On-Command® 2WD/4WD with differential lock for superior traction.
Suspension:
Independent front and rear suspension for a comfortable and capable ride.
Engine Mechanical:
Complete overhaul procedures, cylinder head, piston, crankshaft, camshaft, valve timing, lubrication system, cooling system, decompression system.
Engine Fuel System:
Fuel injection system (EFI) components, fuel pump, injectors, throttle body, sensors (TPS, MAP, IAT, O2), fuel pressure regulation, troubleshooting.
Engine Ignition System:
CDI unit, ignition coil, spark plug, troubleshooting ignition timing issues.
Transmission Drivetrain:
Automatic transmission (Ultramatic), CVT operation, clutch assembly, gearbox, differential, drive shafts, universal joints, maintenance and repair.
Electrical System:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), starter motor, lighting system, electrical component testing, troubleshooting electrical faults.
Chassis Suspension:
Front and rear suspension systems (independent double wishbone), shock absorbers, springs, bushings, steering system, alignment specifications.
Brakes:
Hydraulic disc brakes (front and rear), brake calipers, master cylinders, brake lines, fluid replacement, bleeding procedures, troubleshooting.
Bodywork Frame:
Frame construction, body panels, fenders, racks, seat, removal and installation procedures.
Cooling System:
Radiator, fan, coolant type and capacity, thermostat, water pump, flushing and filling procedures.
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, air filter service, chain adjustment (if applicable), battery maintenance, lubrication points.
Diagnostic Procedures:
Systematic troubleshooting guides for common and uncommon problems, fault code interpretation (if applicable), diagnostic flowcharts.
Repair Procedures:
Step-by-step instructions for component removal, disassembly, inspection, repair, assembly, and reinstallation.
Rebuild Procedures:
Detailed instructions for engine and transmission overhauls, including torque specifications and clearances.
Wiring Diagrams:
Comprehensive electrical schematics for all model variations covered.
Specifications Data:
Torque values, measurements, clearances, fluid capacities, and other critical technical data.
Depth Of Coverage:
Comprehensive, suitable for professional technicians and advanced DIY enthusiasts.
Diagnostic Capability:
Advanced diagnostics for EFI and electrical systems.
Rebuild Scope:
Full engine and transmission rebuild instructions.
Engine Type:
Liquid-cooled, SOHC, four-stroke, single-cylinder.
Displacement:
686 cc (41.86 cu. in.)
Bore X Stroke:
100.0 mm x 85.9 mm (3.94 in x 3.38 in)
Horsepower Approx:
Approx. 45-50 hp (varies by tuning and regulations)
Torque Approx:
Approx. 40-45 lb-ft (varies by tuning and regulations)
Fuel Delivery:
Yamaha Fuel Injection (YFI)
Fuel Type:
Unleaded gasoline, 87 octane minimum
Cooling Method:
Liquid-cooled
Transmission Type:
Yamaha Ultramatic® V-belt, automatic transmission with engine braking
Gear Selection:
H (High), L (Low), N (Neutral), R (Reverse), P (Park)
Optional Transmission:
N/A (Ultramatic® is standard)
Engine Braking:
Engine braking system for controlled descents.
Drive System:
Yamaha On-Command® (2WD/4WD with differential lock)
Transmission Fluid Type:
Yamalube 4 (10W-40) or equivalent API SG, API SH, API SJ SAE 10W-40
Engine Oil Change:
Every 1,000 km (600 miles) or 6 months.
Oil Filter Replacement:
Every 1,000 km (600 miles) or 6 months (coincides with oil change).
Air Filter Cleaning:
Every 1,000 km (600 miles) or 6 months, depending on operating conditions.
Spark Plug Inspection:
Every 1,000 km (600 miles) or 6 months.
Brake Fluid Replacement:
Every 2 years or as needed.
Engine Oil Capacity:
3.0 L (3.2 US qt) with oil filter change.
Engine Oil Specification:
Yamalube 4 (10W-40) or equivalent SAE 10W-40 API SG, API SH, API SJ.
Coolant Type:
Permanent type anti-freeze coolant, 50% solution.
Coolant Capacity:
2.40 L (2.54 US qt)
Common Problems:
Some owners reported occasional issues with the starter motor solenoid, carburetor synchronization (on earlier models with carbs), and general wear and tear on suspension components with heavy use. Fuel pump reliability can also be a concern if maintenance is neglected.
Troubleshooting Guides:
Manual includes detailed troubleshooting for starting issues, poor running conditions, electrical faults, and drivetrain problems.
