2002 Yamaha YFM80 Badger 80 ATV Service Manual

Digital archive for Yamaha YFM80 Badger 80 ATV models, providing comprehensive service procedures for engine, chassis, and electrical systems. Covers C38930 part numbers.

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Document Details

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Document Number / Seller:
26800 / Deborah Lee
File Size:
21.50 MB
File Type:
PDF
Language:
English
Pages:
210
Printable:
Yes
Category:
ATV
Last updated / verified
Aug 7, 2025

Models Covered & Key Technical Specifications

Yamaha YFM80 (D) Badger 80 ATV Service Manual (1990-1995)

Digital Archive | Series Bundle.

  • Verified Operating Temps: 30-60F is established at ambient temperature Standards.
  • Key Burn-in Temperature: For optimal operation, 30-40F yields environmental limit Matrix.
  • Principal Rotation Data: 1,700-1,900 rpm specifies engine idling speed Protocol.
  • Advanced Native Resolution: The formatter board requires 79 cc for standard operation Architecture.
  • Defined System Volume: Engine oil capacity maintains 0.8 L Parameters.
  • General Climate Specs: Air filter type is wet type Norms.

Professional Workshop Service Manual & Technical Specifications

Yamaha YFM80 (D) Badger 80 ATV Service Manual - Comprehensive Maintenance & Repair Procedures (1990-1995) Service-Dossier

Validation-Data: YFM80(D) // Design-Core: ATV / Engine Logic // Assembly-Group: Maintenance & Repair Procedures. Specification System-Path Calibration-Data
Model Code 4EM YFM80(D)
Engine Type 4-stroke SOHC Air-cooled CC
Displacement 79 cc 1.85 x 1.80 in
Compression Ratio 9.6:1 171 psi
Fuel Tank Capacity 1.8 US gal 6.8 L
Engine Oil Capacity 0.85 US qt 0.8 L

Factory procedures are documented for this specific Yamaha ATV. This manual details integrated procedures for the YFM80 Badger 80, covering all systems and components. It includes essential maintenance schedules, diagnostic procedures, and part specifications. The manual is organized to guide users through systematic troubleshooting and repair processes. It details engine overhaul, carburetion, chassis adjustments, and electrical system diagnostics. Repair specifications for various components like brakes, suspension, and steering are clearly outlined to ensure proper vehicle function. Detailed procedures for engine assembly and disassembly are provided, covering critical aspects of the internal components. Safety precautions and proper tool usage are emphasized throughout the document to ensure safe and effective maintenance.

FAQ

What does the **specific** assembly sequence detail? keyboard_arrow_down

20 Nm is the specified torque for the drain plug to ensure proper engine oil replacement.

Reference the **designated** service interval parameters for the air filter. keyboard_arrow_down

Every 20-40 hours is the recommended air filter service interval, or more often in wet or dusty areas.

What are the **exact** system architecture specifications for the valve clearance? keyboard_arrow_down

0.05 - 0.10 mm (0.002 - 0.004 in) for the intake valve, and 0.075 - 0.125 mm (0.003 - 0.005 in) for the exhaust valve, measured cold.

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Reviews (3)

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New
The wiring diagrams and troubleshooting sections are incredibly helpful. Downloading was a breeze, and support was quick to respond to my questions!
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Rated 5 out of 5 stars
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New
This manual is a lifesaver for maintaining my Yamaha. The step-by-step instructions are clear and easy to follow. Highly recommended!