2009-2010 Yamaha Grizzly 450 4x4 Service Manual

This comprehensive manual covers all service and repair procedures for the 2009-2010 Yamaha Grizzly 450 4x4. Includes detailed diagrams and troubleshooting tips. Part Number LIT-11616-KD-48.

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Document Details

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Document Number / Seller:
31443 / Walter Young
File Size:
43.07 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
4x4
Last updated / verified
Sep 16, 2025

Models Covered & Key Technical Specifications

Yamaha Grizzly 450 (YFM45GZ, YFM45FGHZ) - 2009-2010 PDF Chassis-Documentation

Documentary Catalog Specification Index | Series File.

  • Engineered Climate Parameters: 3.6 psi (25 kPa) rear tire pressure establishes the baseline for safe operation.
  • Defined Processing Speed: For optimal performance, 0.6-0.7 mm (0.024-0.028 in) spark plug gap ensures efficient combustion.
  • Standard Component Weight: With oil and fuel, the ATV weighs 286.0 kg (631 lb) total weight.
  • Prescribed Tension Specs: Front brake lever free play should measure 8.0-10.5 mm (0.31-0.41 in) for precise control.
  • Nominal Holding Capacity: The engine requires 2.30 L (2.43 US qt, 2.02 Imp.qt) of oil for standard operation.
  • Verified Ambient Limits: For maximum engine life, avoid rapid acceleration when the engine is cold.

Professional Workshop Service Manual & Technical Specifications

Factory-Level Safety Wiring Manual: Yamaha Grizzly 450 4x4, YFM45GZ, YFM45FGHZ manual, years: 2009-2010, PDF Chassis-Documentation

Service-Level: 2009-2010 Yamaha Grizzly 450 4x4 (YFM45GZ, YFM45FGHZ) // Coverage-Scope: ATV / Utility Vehicle Logic // Service-Level: Owner's Manual

Service-Nexus Baseline Logic
Front Carrier Load 40.0 kg (88 lb) Maximum Capacity
Rear Carrier Load 80.0 kg (176 lb) Maximum Capacity
Fuel Tank Capacity 15.0 L (3.96 US gal) Reserve Capacity
Engine Oil Quantity 2.30 L (2.43 US qt) Oil Change Interval
Spark Plug Gap 0.6-0.7 mm (0.024-0.028 in) Performance Tuning
Idle Speed 1450-1550 r/min Engine Operation

Cataloging major assemblies into various sections, this manual provides an in-depth look at the Yamaha Grizzly 450. Procedures cover everything from basic operation and maintenance to detailed component checks and adjustments.

Checking the Coolant Level

Coolant levels are critical for engine health and should be checked regularly. This manual details the correct procedure for checking and maintaining the coolant level to prevent overheating.

Engine Oil and Oil Filter Cartridge Procedures

This section details the engine oil and oil filter cartridge replacement intervals and procedures. Proper engine oil is essential for lubrication and cooling.

Periodic Maintenance Chart for Emission Control System

This chart outlines the recommended maintenance schedule for the emission control system, ensuring compliance and optimal performance. It includes checks for the fuel line and spark plug.

Troubleshooting Starting Problems or Poor Engine Performance

This section offers a comprehensive troubleshooting guide for common starting issues and poor engine performance, covering fuel, compression, ignition, and battery checks.

Carburetor Adjustments

While most carburetor adjustments are best left to a Yamaha dealer, this manual provides guidance for owners on basic adjustments to ensure optimal performance.

This manual documents torque specifications for various components to ensure proper fastener fatigue prevention.

FAQ

Check the **standard** spark plug gap keyboard_arrow_down

0.6–0.7 mm (0.024–0.028 in) is the specified spark plug gap for optimal engine operation.

What does the **necessary** brake fluid level mean? keyboard_arrow_down

Brake fluid should be above the minimum level mark to ensure effective braking and prevent air from entering the system.

Reference the **recommended** tire pressure for the Yamaha Grizzly 450 keyboard_arrow_down

25.0 kPa (0.250 kgf/cm², 3.6 psi) is the recommended tire pressure for both front and rear tires on cold tires.

Customer Reviews

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Reviews (4)

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New
I found the troubleshooting section particularly helpful. Downloading was a breeze, and support responded quickly to my queries!
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Rated 4 out of 5 stars
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New
The manual is comprehensive and easy to follow. Perfect for both regular maintenance and complex repairs!
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New
This manual covers everything you need to know about the Grizzly 450. The download process was smooth, and the customer service was very professional.