2001 Yamaha YZ80/YZ80LW Service Manual

Covers the YZ80(N)/LC and YZ80LW(N) models, providing detailed diagrams, specifications, and repair sequences for engine, chassis, and electrical systems. Includes part numbers for quick reference. Ref: 4ES-28199-88

5.0starstarstarstarstar(1)
visibility Preview Available
Yamaha 2001 Yamaha YZ80/YZ80LW Service Manual manual page preview - page 1 of 534

Sample pages from the 2001 Yamaha YZ80/YZ80LW Service Manual manual

Yamaha 2001 Yamaha YZ80/YZ80LW Service Manual manual preview page 1 - thumbnail
info_outline Click thumbnails to preview different pages
$19.30 (incl. VAT) Original OEM Factory Manuals & Data Instant Download / No Shipping Fees
OR BUY NOW
verified_user
Lifetime Access
Re-download anytime
flash_on
Instant Download
Get it immediately
lock
Secure Payment
PayPal
Technical Safety Notice
keyboard_arrow_down

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 YZ80, Yamaha YZ80LW
Sub-models / Variants: YZ80N, YZ80LC, YZ80LWN, USA, Canada, Australia, New Zealand, Europe, South Africa specifications
Build Years: 2001
Technical Data:

  • Engine: Liquid-cooled 2-stroke, single cylinder, 82.9 cc displacement
  • Bore × Stroke: 47.0 × 47.8 mm (1.850 × 1.882 in)
  • Compression Ratio: 8.2:1
  • Transmission: Constant mesh, 6-speed
  • Ignition: CDI Magneto, 14°/11,000 r/min timing
  • Fuel Capacity: 5 L (1.32 US gal)
  • Transmission Oil Capacity: 0.50 L (0.52 US qt)
Technical Specifications
keyboard_arrow_down
Document Number / Seller:
23496 / Susan Stewart
File Size:
14.10 MB
File Type:
PDF
Language:
English, French, German
Pages:
534
Printable:
Yes
Category:
Motorbike
Last updated / verified
Apr 14, 2026

Yamaha Manual Features & Content Preview

2001 Yamaha YZ80 and YZ80LW Technical Documentation

  • This 2001 Yamaha YZ80 and YZ80LW workshop publication provides technical guidance for the 82.9 cc liquid-cooled two-stroke motocross platform
  • Official Yamaha publication 4ES-28199-88, first edition
  • Contains 534 pages of detailed exploded-view diagrams, torque-check reference charts, and electrical system schematics
  • File delivered as a direct download the moment payment clears
  • Page spreads stay legible when printed at original size
  • OCR text layer lets you jump to a torque spec by keyword
  • This 534-page manual documents the 2001 YZ80 and YZ80LW launch build — essential for correct carburetor tuning and engine assembly clearance specs

Contents Overview

The 2001 Yamaha YZ80 and YZ80LW service manual covers machine identification, general safety protocols, and operational maintenance for the 82.9 cc two-stroke engine. Major chapters detail engine disassembly, crankshaft inspection, and cylinder head assembly, alongside chassis maintenance including front fork and monocross rear suspension adjustments.

Additional sections present transmission gear ratios, CDI magneto testing, and comprehensive tuning guides for varying track conditions and weather. The manual includes dedicated maintenance schedules for cooling system inspection, clutch adjustments, and drive chain slack, ensuring that the 2001 Yamaha YZ80 and YZ80LW platform is maintained according to factory standards.

Specification Highlights

Detailed tables provide engine tolerance charts and wear limits for pistons, rings, and connecting rods. Cylinder head bolt torque values are documented at 30 Nm (22 ft-lb), while the crankcase cover bolts are specified at 10 Nm (7.2 ft-lb). The cooling system capacity for the 2001 Yamaha YZ80 is documented at 0.5 liters.

Ignition system specifications list source coil resistance at 257–314 ohms, and pick-up coil resistance at 15.8–19.4 ohms. The 2001 Yamaha YZ80 ignition timing is set at 14° BTDC at 11,000 r/min. Spark plug gap is specified at 0.5–0.6 mm (0.020–0.024 in) for the BR10EG/NGK plug. This official 534-page Yamaha OEM workshop manual provides full engine, chassis, and electrical specifications for the YZ80 and YZ80LW competition models.

Manual FAQ, Purchase & Download Details

Does the 2001 Yamaha YZ80/YZ80LW Service Manual include tightening torque specifications for engine and chassis fasteners? keyboard_arrow_down

Yes, this manual contains detailed specification tables that list torque values for a wide range of components, including the cylinder head, crankcase, and wheel axle fasteners.

Can I find ignition system reference values for the CDI and ignition coil in this document? keyboard_arrow_down

Manual includes an electrical specifications section that provides source and pick-up coil resistance values, as well as ignition coil primary and secondary winding resistance measurements.

Does this PDF provide a neutral compatibility preview for the YZ80 and YZ80LW models? keyboard_arrow_down

Document covers both the YZ80 and YZ80LW models for the 2001 production year, and the general specifications tables list specific model codes and dimensions for each variant.

Customer Reviews

Read what our customers say about this Yamaha Motorbike manual and share your own experience.