Carburetor synchronization (if applicable to earlier models, but this is EFI), throttle cable adjustment, brake lever adjustment, chain tension (if applicable), clutch engagement
Technical Depth
Depth:
Comprehensive: From basic fluid checks to complete engine disassembly and reassembly, including detailed diagnostic flowcharts.
📊 Manual Specifications
File Format
File Type:
PDF
Print Quality
Printability:
High-resolution graphics and text for clear printing
Zoom Functionality:
Yes (Zoom In/Out)
Binding Type
Binding Type:
N/A (Digital Format)
Paper Type
Paper Type:
N/A (Digital Format)
⚙️ Engine Specifications
Primary Engine
Engine Type:
Four-stroke, SOHC, liquid-cooled, 4-valve
Displacement:
686cc
Bore X Stroke:
100.0 mm x 83.9 mm
Compression Ratio:
8.1:1
Carburetion:
N/A (Fuel Injection)
Performance
Horsepower Estimate:
Approx. 45-50 HP (Exact figures vary based on tuning and measurement)
Torque Estimate:
Approx. 45-50 lb-ft (Exact figures vary based on tuning and measurement)
Fuel System
Fuel Delivery System:
Electronic Fuel Injection (EFI) with 44mm throttle body
Fuel Type:
Unleaded gasoline, minimum 87 octane
Engine Maintenance
Spark Plug Gap:
0.6 - 0.7 mm (0.024 - 0.028 in)
Valve Clearance Intake Cold:
0.08 - 0.12 mm (0.003 - 0.005 in)
Valve Clearance Exhaust Cold:
0.12 - 0.16 mm (0.005 - 0.006 in)
🔧 Transmission
Standard
Transmission Type:
Ultramatic® automatic transmission with centrifugal clutch
Drive Modes:
2WD/4WD with diff-lock selector (On-Command®)
Features
Gear Reduction:
High and Low range, Neutral, Reverse
Final Drive:
Shaft drive, sealed O-ring chain
Fluid Specifications
Transmission Fluid Type:
Yamaha Genuine ATF or equivalent (Specific Yamaha part number usually recommended, e.g., YAMALUBE ATF)
Fluid Capacity
Transmission Oil Capacity:
Approx. 1.0 L (1.06 US qt)
📐 Dimensions
Exterior
Length:
81.7 in (2075 mm)
Width:
45.5 in (1155 mm)
Height:
45.8 in (1165 mm)
Wheelbase:
50.4 in (1280 mm)
Ground Clearance:
11.1 in (283 mm)
Weights
Dry Weight:
619 lbs (281 kg)
Curb Weight:
641 lbs (291 kg) (with all fluids)
Towing Capacity:
1322 lbs (600 kg)
Rack Capacity Front:
99 lbs (45 kg)
Rack Capacity Rear:
198 lbs (90 kg)
🛡️ Safety Features
Ratings
Safety Standards Adherence:
Designed to meet ANSI standards for recreational ATVs.
Available on select 2007 models, significantly reducing steering effort.
Connectivity
Connectivity Features:
N/A (No digital connectivity features).
Engine Management
Engine Control Unit:
ECU controls fuel injection, ignition timing, and other engine parameters.
🔧 Maintenance
Service Intervals
Engine Oil Change:
Every 1,000 km or 6 months (whichever comes first). Inspect monthly.
Air Filter Cleaning:
Clean every 100 km or monthly. Replace as needed.
Spark Plug Replacement:
Replace every 12 months or 2000 km.
Valve Adjustment:
First at 1,000 km, then every 4,000 km or annually.
Fluid Specifications
Engine Oil Type:
SAE 10W-40 API SG or higher (Yamalube 4-stroke recommended)
Engine Oil Capacity:
2.4 L (2.5 US qt) with filter change
Coolant Type:
Permanent type anti-freeze solution (50% ethylene glycol and 50% distilled water)
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid
Known Issues
Common Wear Items:
CV boots, wheel bearings, brake pads, drive belt (Ultramatic®).
Efi Considerations:
Sensitivity to fuel quality, potential for throttle position sensor (TPS) issues if damaged.
📚 Vehicle History
Brand Heritage
Yamaha Atv History:
Yamaha has been a pioneering force in the ATV market since the early 1980s, known for innovation and durability.
Model Evolution
Grizzly Lineage:
The Grizzly line has consistently been Yamaha's flagship utility ATV, evolving with advancements in engine technology, suspension, and comfort features like EPS.
Production
Manufacturing Location:
Japan (Primary manufacturing hub for Yamaha ATVs)
🏆 Awards & Recognition
Recognitions
Industry Reputation:
Consistently rated as one of the most reliable and capable utility ATVs in its class.
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