2006 Yamaha YZ85 / YZ85LW Owner's Service Manual (506 P.)

Shop manual for YZ85 and YZ85LW two-stroke engines with complete service procedures. Covers carburetor tuning, clutch adjustment, and chassis suspension setup with detailed torque specifications throughout. PN 5PA-28199-84

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Yamaha Models Covered & Key Technical Specifications

Models: Yamaha YZ85, YZ85LW
Sub-models / Variants: YZ85V, YZ85LWV
Trade Names: YZ85, YZ85LW
Build Years: 2006
Serial Numbers: 5PAD, 5PAE, 5SHD, 5SHE
Technical Data:

  • Engine displacement: 84.7 cm³
  • Engine type: Liquid cooled 2-stroke
  • Transmission: 6-speed constant mesh
  • Fuel capacity: 5 L (1.32 US gal)
  • Spark plug gap: 0.5–0.6 mm
  • Dry weight: 66 kg (YZ85) / 69 kg (YZ85LW)
Technical Specifications
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Document Number / Seller:
23426 / Robert Grant
File Size:
10.39 MB
File Type:
PDF
Language:
English, French, German
Pages:
506
Printable:
Yes
Category:
Bike
Last updated / verified
Dec 25, 2025

Yamaha Manual Features & Content Preview

2006 Yamaha YZ85 and YZ85LW Technical Overview

  • Covers 2006 Yamaha YZ85 and YZ85LW motocross competition machines in standard and LW (Large Wheel) configurations
  • Official OEM publication P/N 5PA-28199-84, covering technical service data and maintenance specifications
  • Contains 506 pages of technical documentation including torque specifications, wiring diagrams, and component clearance charts
  • Accessible from your device as soon as the order is placed
  • Suitable for printing individual sections for shop-floor use
  • This 2006 edition serves as the foundational reference manual for the YZ85(V) and YZ85LW(V) competition model launch builds

Document Scope and Technical Specifications

Service Documentation Layout

This manual provides a detailed reference for the 2006 Yamaha YZ85 and YZ85LW, documenting maintenance and assembly for the competition-grade two-stroke platform. The chapters detail general information, engine overhaul procedures, chassis maintenance, electrical system component specs, and tuning adjustments. Coverage spans identification details for the YZ85 and YZ85LW models, including specific serial number and code designations for global markets. Maintenance schedules and pre-operation inspections are documented to support high-performance operation on closed courses.

Specification and Reference Highlights

Technical data is provided for critical identification and inspection tasks. Cylinder head combustion chamber capacity is documented at 7.14 cm³ in the maintenance specifications. The YZ85 secondary reduction ratio is listed as 47/14 for USA/ZA models and 48/14 for Europe/CDN/AUS/NZ. Coolant capacity for the liquid-cooled system is documented at 0.54 liters for all routing paths. Torque values for engine and chassis fasteners, including the 79 Nm primary drive gear specification, are cataloged by thread size for assembly reference. Clearances for piston-to-cylinder fitment are established at 0.040–0.045 mm for standard engine builds. Reference this manual to find what an OEM service publication covers for these racing units. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work.

Manual FAQ, Purchase & Download Details

Is the 2006 Yamaha YZ85 and YZ85LW included in this service manual? keyboard_arrow_down

Document covers both the YZ85 and YZ85LW model variants for the 2006 model year.

What information regarding the fuel and oil mixing can be found in the document? keyboard_arrow_down

Manual includes specification sections that detail fuel tank capacities and provide the recommended Yamalube 2-R mixing ratio.

Does this manual provide technical data such as tightening torques and electrical values? keyboard_arrow_down

Document contains comprehensive maintenance specification tables that list torque settings for various components, as well as reference values for electrical systems, bore and stroke, and fluid capacities.

Are there exploded views and diagrams provided to help identify parts in the manual? keyboard_arrow_down

Manual includes exploded diagrams at the start of removal and disassembly sections, alongside cable routing diagrams to assist with part identification and system layouts.

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