Positioning:
A robust and reliable mid-size utility ATV, the Yamaha Grizzly 350 4x4 offers a blend of capability and comfort for recreational riding and light utility tasks, making it popular among a wide range of riders.
Competitors:
Competes with similar mid-size 4x4 ATVs from brands like Honda (e.g., FourTrax Foreman), Polaris (e.g., Sportsman), Suzuki (e.g., KingQuad), and Kawasaki (e.g., Brute Force).
Features:
Proven 349cc air-cooled SOHC engine, automatic Ultramatic® transmission with On-Command® 4WD, independent front and rear suspension, sealed hydraulic disc brakes, and rugged utility styling.
Systems Covered:
Engine, Transmission, Drivetrain, Suspension, Brakes, Electrical System, Fuel System, Cooling System, Chassis, Bodywork, Maintenance, Troubleshooting, Diagnostics, Specifications
Estimated Page Count:
Comprehensive (Actual number not specified, but implied to be exhaustive A-Z coverage)
Type:
Complete Workshop Service Repair Manual
Engine Mechanical:
Full engine overhaul, including cylinder head, pistons, crankshaft, camshaft, timing, valve adjustments, lubrication system, and cooling system.
Drivetrain 4X4:
Detailed coverage of the 4WD system, including front differential, drive shafts, rear differential, and engagement mechanisms.
Transmission Cvt:
Service and repair procedures for the Continuously Variable Transmission (CVT), including belt inspection, sheave maintenance, and lubrication.
Electrical System:
Comprehensive wiring diagrams, troubleshooting for ignition, lighting, starting, charging systems, and accessory circuits.
Suspension Steering:
Front and rear suspension components, steering system, alignment procedures, and shock absorber servicing.
Braking System:
Hydraulic brake system, including brake calipers, master cylinder, brake lines, and pad replacement.
Fuel System:
Carburetor service, fuel pump, fuel lines, and fuel tank maintenance.
Routine Maintenance:
Oil changes, filter replacements, spark plug service, air filter cleaning/replacement, and general inspections.
Troubleshooting:
Systematic diagnostic guides for common and uncommon problems, with step-by-step troubleshooting flowcharts.
Component Rebuilds:
Detailed instructions for rebuilding major components like the engine, transmission, and differentials.
Adjustments:
Carburetor adjustments, valve clearance adjustments, brake adjustments, and clutch adjustments.
Depth:
Comprehensive, covering from basic user-level maintenance to complete engine and transmission rebuilds, suitable for both DIY enthusiasts and professional technicians.
Engine Type:
349cc, Air-cooled, 4-stroke, SOHC, 2-valve
Bore X Stroke:
83.0 mm x 64.5 mm
Horsepower:
Estimated 20-25 HP (Specific rating may vary by region and tuning)
Torque:
Estimated 20-25 lb-ft (Specific rating may vary by region and tuning)
Carburetor:
Mikuni BSR33/1, 33mm with throttle position sensor (TPS)
Fuel Tank Capacity:
3.7 gallons (14 Liters)
Ignition System:
CDI Digital Ignition
Oil Type:
Yamalube 4 (or equivalent) SAE 10W-30 or 20W-40 API SG or higher
Cooling Method:
Air-cooled with fan
Type:
Ultramatic® V-belt, automatic continuously variable transmission (CVT)
Drive System:
Yamaha On-Command® 2WD/4WD with differential lock
Engine Braking:
Provides effective engine braking during descents
Transmission Oil:
Yamaha Bearings Grease or equivalent (Specific grades for different components detailed in manual)
Crash Test Ratings:
N/A (ATVs are not subjected to standard automotive crash testing)
Braking System:
Sealed hydraulic disc brakes front and rear, providing consistent stopping power in various conditions.
Drivetrain Engagement:
On-Command® 4WD system with electronic engagement and differential lock for enhanced traction.
Ergonomics:
Comfortable seating position and intuitive controls designed for rider fatigue reduction.
Lighting:
Dual 30W Krypton headlights and a 21/5W brake/tail light for visibility.
Engine Oil Change:
Every 600 miles or 6 months (whichever comes first), or more frequently in severe use.
Air Filter Cleaning:
Inspect every 300 miles or 3 months, clean/replace as needed. Clean more frequently in dusty conditions.
Spark Plug Replacement:
Every 600 miles or 6 months (refer to manual for specific type and gap).
Cvt Belt Inspection:
Inspect every 600 miles or 6 months for wear and damage.
Engine Oil Capacity:
1.76 US qt (1.67 L) with oil filter replacement
Gear Oil Front Differential:
Yamalube Gear Oil or equivalent SAE 80 API GL-4
Gear Oil Rear Differential:
Yamalube Gear Oil or equivalent SAE 80 API GL-4
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid
Common Wear Items:
CVT belt wear, suspension bushings, wheel bearings, and brake pads are common wear items subject to replacement based on usage.
Potential Failures:
Overheating due to airflow obstruction or cooling fan issues, carburetor performance degradation over time if not cleaned.
Heritage:
Yamaha has a long-standing reputation for building durable and reliable off-road vehicles, with the Grizzly line being a cornerstone of their ATV offerings.
Evolution:
The Grizzly 350 4x4 is a continuation of Yamaha's popular mid-size utility ATV platform, known for its consistent performance and build quality. While the core platform has been around, specific refinements and updates occur with model year changes.
Manufacturing Location:
Typically manufactured in Japan or the United States by Yamaha Motor Corporation.
Industry Awards:
Yamaha Grizzly models are consistently recognized for their reliability, durability, and off-road capability within the ATV industry.
Consumer Ratings:
Generally receives high ratings from consumers for performance, build quality, and value.
Certifications:
Meets applicable EPA emissions standards for off-road vehicles.
