Promo banner
  • DIY experts since 1960
  • Manual owners save $3,993 on average each year
  • Over 200 million manuals sold worldwide

Clymer

Yamaha YZ125 & YZ250 (1985-1987) &YZ490 (1985-1990) Motorcycle Service Repair Manual - Digital Edition

$44.95

Available Formats
  • Print out pages at home
  • Access using your Haynes account
  • Available to use immediately
  • No shipping fees

Description

This Online Clymer Repair Manual is an essential digital resource for anyone looking to service or repair their motorcycle at home. Whether you're riding at the weekend or using your bike for a daily commute, you don't want your plans disru...

Benefits

  • Based on a Stripdown and Rebuild
    Detailed instructions created by trusted DIY experts

    Based on a Stripdown and Rebuild

    Clymer is known for taking a thorough approach to manual creation. This manual was created by completely stripping apart a vehicle and putting it back together again, leaving no bolt, panel or component unexplored.

  • Work Safely Using Wiring Diagrams
    Make changes and repairs with confidence

    Work Safely Using Wiring Diagrams

    Making electrical changes can be challenging, so it's crucial you have clear guidance and expertly written advice on hand. Haynes' wiring diagrams give you precise instructions on how to repair and modify key systems, allowing to work with confidence.

  • Teaches You Technical Terms
    Empower yourself with an overview of technical terms

    Teaches You Technical Terms

    Feel like you're in the dark when speaking with a mechanic? Learning technical terms and common issues gives you the power to ask questions and make sure you're happy and confident with the work they're doing.

  • Step-by-Step Instructions
    Easy to follow instructions help you get the job done.

    Step-by-Step Instructions

    Clymer manuals are known for their clear, step-by-step instructions. On all jobs included in this manual, you'll find clear guidance on exactly what's required for your vehicle. Haynes' expert hints are also included to give you more support on some of the most common or tricky tasks.

  • Beginner Friendly Instructions
    Start your DIY journey with step-by-step instructions

    Beginner Friendly Instructions

    Clymer is known for being beginner-friendly. This manual contains user-friendly specs and step-by-step instructions to help you get the job done, even if you're brand new to vehicle repair.

  • Clear Pictures & Diagrams
    Make it easier to follow written instructions

    Clear Pictures & Diagrams

    Written guides are easier to follow with accompanying images. This manual contains illustrations, pictures and diagrams sit alongside step-by-step instructions, helping you get a clearer understanding of what's required and tackle the job with confidence.

More Information

  • Table of Contents

    • Operating requirements / Troubleshooting instruments / Emergency troubleshooting / Engine starting / Engine performance / Engine noises / Excessive vibration / Two-stroke pressure test / Clutch / Transmission / Brakes / Water-cooling system (YZ125 and YZ250) / Front suspension and steering / Ignition system / Specifications
    • Pre-checks / Tires and wheels / Lubricants / Cleaning solvent / Periodic lubrication / Engine lubrication / Clutch/Transmission oil checking and changing / Front fork oil change / Front fork air pressure / Periodic maintenance / Drive chain adjustment / Clutch adjustment / Fuel filter and shutoff valve / Coolant change / Air cleaner service / Engine tune-up / Cylinder head nuts torque / Spark plug / Ignition timing / Carburetor pilot screw and idle speed adjustment / Decarbonizing engine and exhaust system / Storage / Specifications
    • Engine principles / Servicing engine in frame / Engine removal installation / Cylinder head / Cylinder / Piston, wrist pin and piston rings / Break-in procedure / Magneto / Reed valve assembly / Crankcase and crankshaft / Kickstarter / Service and adjustment / Specifications
    • Clutch / Clutch cable / External shift mechanism / Primary drive gear / Drive sprocket / Transmission / Specifications
    • Air cleaner / Carburetor operation / Carburetor service / Carburetor adjustments / Fuel shutoff valve / Fuel tank / Energy induction system (YZ490) / Power valve induction system / Exhaust system / Exhaust system decarbonizing / Exhaust system repair / Specifications
    • Capacitor discharge ignition / Magneto (outer rotor) / Magneto (inner rotor) / Magneto coil testing (all models) / Capacitor discharge ignition unit / Ignition coil / Spark plug / Engine kill switch / Wiring diagrams / Specifications
    • Cooling system inspection / Radiator / Water pump / Specifications
    • Front wheel / Front hub / Wheels / Tire changing / Tire repairs / Handlebar / Steering head / Front fork / Specifications
    • Rear wheel / Rear hub / Driven sprocket / Drive chain / Tire changing and tire repairs / Spoke and rim replacement / Rear swing arm / Rear suspension (Decarbon Monocross System) / Specifications
    • Front disc brake / Front brake pad / Front caliper / Front master cylinder / Front brake hose / Front brake disc / Bleeding the system / Rear brake / Rear brake pedal assembly / Specifications
    • Yamaha factory accessories / Front fork / Rear shock absorber / Specifications
    • WIRING DIAGRAMS,Models covered:,1985 1986 1987 Yamaha YZ125 YZ 125,1985 1986 1987 Yamaha YZ250 YZ 250,1985 1986 1987 1988 1989 1990 Yamaha YZ490 YZ 490,Clymer Manuals Yamaha YZ125 Manual,Clymer Manuals Yamaha YZ250 Manual,Clymer Manuals Yamaha YZ490 Manual,YZ125 (1985-1987),YZ250 (1985-1987),YZ490 (1985-1990)

Need Help Choosing?

Your DIY Solutions Explained

Empower Yourself with DIY

Save Money on Motorcycle Maintenance & Repairs

When surveyed, our manual owners said they saved $3,993 on average every year by working on their own vehicle. Learn the skills to keep your bike on the road with a Clymer manual.

Customer Testimonials

Trusted by DIYers Since 1960

Be Ready to Ride with a Clymer Yamaha Manual

For decades Clymer's step-by-step instructions have been the go-to for professionals and DIY enthusiasts alike.

Not the Right Manual?

Search for Your Vehicle

Enter your make/model, license plate or VIN to find manuals that match your vehicle.

Select Your Vehicle Type *