2002-2008 Yamaha ATV YFM660F (Grizzly 660) Service Manual

Complete service manual for the 2002-2008 Yamaha ATV YFM660F, Grizzly 660. Includes procedures for maintenance, adjustments, and repairs. Part Number: 90890-01309.

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Document Details

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Document Number / Seller:
27209 / Jessica Taylor
File Size:
20.05 MB
File Type:
PDF
Language:
English
Pages:
466
Printable:
Yes
Category:
ATV
Last updated / verified
Mar 31, 2025

Models Covered & Key Technical Specifications

Yamaha Grizzly 660 (YFM660F) 2002-2008 Service Manual

Covers 2002-2008 Yamaha Grizzly 660 (YFM660F) with procedures for maintenance and repairs. PN: 90890-01309 | Yamaha Grizzly 660 Compendium Division.

  • Approved Form Factor: 2085 mm (82.1 in) establishes the overall length dimension Matrix.
  • Factory Output Quality: For optimal performance, 1.9 L (1.7 Imp qt, 2.0 US qt) defines the engine oil capacity Standards.
  • Primary Technical Data: 660 cm3 signifies the engine displacement Architecture.
  • General Specifications: The engine type requires Liquid-cooled 4-stroke, SOHC Framework.
  • Essential Fastener Specs: 0.8 ~ 0.9 mm (0.03 ~ 0.04 in) signifies the spark plug gap Protocol.
  • Operational Unit Dimensions: 275 mm (10.83 in) determines the minimum ground clearance Norms.

Professional Workshop Service Manual & Technical Specifications

Yamaha Grizzly 660 (YFM660F) 2002-2008 Service Manual: Complete Guide Knowledge-Base

System-Identifier: YFM660F (2002-2008) Logic // System-Coverage: ATV / Powertrain Logic // Performance-Values: Torque Specifications, Clearance Data.

Repair data is categorized into the following sections, offering comprehensive documentation for your ATV.

Technical Specs Table

Identifier Technical-Path Calibration-Data
Model Code 5KM1 / 5KM5 Standard Specifications
Engine Displacement 660 cm3 Bore x Stroke: 100 x 84 mm
Fuel Tank Capacity 20 L Reserve: 3.5 L
Front Brake Type Dual Disc Rear Brake Type: Single Disc
Front Wheel Travel 170 mm Rear Wheel Travel: 225 mm

Repair information is organized to provide clear guidance on all aspects of maintenance and repair.

Steering component information is provided for the steering system, including adjustments and checks.

Inspection guidelines are provided for the front and rear suspension, covering shock absorbers and spring preload.

Alignment specifications are included for the front wheels, focusing on toe-in adjustments.

Reference data is included for the braking system, detailing fluid levels, pad wear, and hose checks.

This manual covers the electrical system, ignition, starting, charging, lighting, and signal systems.

The manual documents torque specifications for various engine and chassis components to ensure proper fastener fatigue prevention.

FAQ

What components are **documented** regarding safety precautions? keyboard_arrow_down

12 V 18 AH battery specifications and related charging methods are documented concerning safety precautions.

Confirm the **precise** lubrication requirements for the engine. keyboard_arrow_down

Engine oil lubrication for oil seal lips (all), O-rings (all), bearings (all), and crank pins require SAE 5W30 or SAE 10W30 oil as per the lubricant types.

What tools are needed for **proper** spark plug testing? keyboard_arrow_down

A feeler gauge or wire gauge is required for proper spark plug gap testing, with a standard gap of 0.8 ~ 0.9 mm (0.03 ~ 0.04 in).

Identify the **standard** diagnostic procedures for the ignition system. keyboard_arrow_down

Ignition timing diagnostic procedures are standard, with a specified timing of 12°/ 1,500 r/min for the ignition system.

Customer Reviews

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Reviews (5)

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The manual covers everything you need to know about the YFM660F. The diagrams are very helpful for understanding the more complex parts.
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Rated 4 out of 5 stars
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This manual is a must-have for anyone who owns a Yamaha ATV YFM660F. The instructions are clear and easy to follow, making maintenance a breeze.
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I had a smooth download experience, and the support team was quick to respond when I had questions. Highly recommend this manual!
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As a professional mechanic, I found this service manual extremely helpful. The troubleshooting section is particularly detailed and has saved me a lot of time.