Yamaha YZ 125-250-350-400-426 repair manuals

Yamaha YZ & WR 4-stroke Motocross & Off-road Bikes (1998-2008) | Haynes Service & Repair Manual

Haynes Service & Repair Manual for the Yamaha motocross models YZ and WR 4-stroke.

Versions:
- WR250F (249 cc, 2001-2008), WR400F (399 cc, 1998-2000), WR426F (426 cc, 2000-2002), WR450F (449 cc, 2003-2008)
- YZ250F (249 cc, 2001-2008), YZ400F (399 cc, 1998-2000), YZ426F (426 cc, 2000-2002), YZ450F (449 cc, 2003-2008).

This Haynes manual for the 4-stroke Yamaha YZ and WR motocross and off-road motorcycles provides photos and detailed step-by-step instructions for maintenance and repair of the engine, the clutch and the gearbox.
The cooling system, fuel system, ignition, exhaust, suspension, final drive and brakes are also covered.

• Based on a complete strip-down and rebuild.
• Includes a maintenance schedule, adjustment data, torque wrench settings, and troubleshooting tables.
• Very clear and detailed wiring diagrams in colour for easy reference.
• Contains also a brief model history.

Product details

Author:	Alan Ahlstrand
Details:	224 pages, 27 x 21 x 2 cm / 10.6 x 8.25 x 0.79 in, paperback
Illustrations:	hundreds of photos and drawings
Publisher:	Haynes Publishing (GB, 2015)
Series:	Haynes Service & Repair Manual (2689)
ISBN:	9781620922156

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Yamaha DT-MX-RT-YZ 250-400 cc Piston Port (1968-1976) | Clymer Service and Repair Manual

Clymer Manual for maintenance and repair of the Yamaha motorcycles:
- DT1 Series (1968-1976), DT2 Series (1968-1976), DT3 (1968-1976)
- DT250 (1968-1976), DT360 (1968-1976), DT400 (1968-1976)
- MX250 (1968-1976), MX360 (1968-1976)
- RT1 Series (1968-1976), RT2 Series (1968-1976), RT3 (1968-1976)
- YZ250 (1968-1976), YZ350 (1968-1976), YZ360 (1968-1976).

This Clymer manual for a wide range Yamaha motorcycles from the years 1968-1976 describes service and repair of the 250-400 cc Piston Port engines, clutch and gearbox, the fuel and exhaust systems, the electrical system, and the cooling system.
Also covers the front suspension and steering system, the rear suspension and drivetrain, the brakes and the frame.

• Step-by-step instructions, many photos and drawings.
• Includes adjustment data and torque wrench settings.
• Contains no wiring diagrams.

Product details

Details:	168 pages, 25 x 16 x 0.5 cm / 9.8 x 6.3 x 0.2 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Clymer (USA, 1981)
Series:	Clymer Motorcycle Service and Repair Manual (M415)
ISBN:	9780892872763

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Yamaha YZ 400F, YZ 426F/ WR 400F, WR 426F (1998-2002) | Clymer Service and Repair Manual

Clymer Manual for maintenance and repair of the Yamaha motorcycles:
- WR 400F (1998-2000)
- WR 426F (2001-2002)
- YZ 400F (1998-1999)
- YZ 426F (2000-2002).

This Clymer manual for Yamaha YZ 400F, YZ 426F, WR 400F and WR 426F off-road motorcycles describes service and repair of the engine, clutch and gearbox, the fuel and exhaust systems, the electrical system, and the cooling system.
Also covers the front suspension and steering system, the rear suspension and drivetrain, the brakes and the frame.

• Step-by-step instructions, many photos and drawings.
• Includes adjustment data, torque wrench settings, and troubleshooting tables.
• Clear wiring diagrams.

Product details

Details:	376 pages, 27.5 x 21 x 3 cm / 10.8 x 8.25 x 1.18 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Clymer (USA, 2004)
Series:	Clymer Motorcycle Service and Repair Manual (M491-2)
ISBN:	9780892879137

More information on the Clymer Repair Manuals

Yamaha YZ 125 (1994-2001) | Clymer Service and Repair Manual

Clymer Manual for maintenance and repair of the Yamaha motorcycles YZ125 (1994-2001).

This Clymer manual for Yamaha YZ 125 off-road motorcycles describes service and repair of the engine, clutch and gearbox, the fuel and exhaust systems, the electrical system, and the cooling system.
Also covers the front suspension and steering system, the rear suspension and drivetrain, the brakes and the frame.

• Step-by-step instructions, many photos and drawings.
• Includes adjustment data, torque wrench settings, and troubleshooting tables.
• Clear wiring diagrams.

Product details

Details:	456 pages, 27.5 x 21 x 3 cm / 10.8 x 8.25 x 1.18 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Clymer (USA, 2002)
Series:	Clymer Motorcycle Service and Repair Manual (M497-2)
ISBN:	9780892878390

More information on the Clymer Repair Manuals

Yamaha YZ 250F & WR 250F (2001-2003) | Clymer Service and Repair Manual

Clymer Manual for maintenance and repair of the Yamaha motorcycles YZ250F (2001-2003) and WR250F (2001-2003).

This Clymer manual for Yamaha YZ 250F and WR 250F off-road motorcycles describes service and repair of the engine, clutch and gearbox, the fuel and exhaust systems, the electrical system, and the cooling system.
Also covers the front suspension and steering system, the rear suspension and drivetrain, the brakes and the frame.

• Step-by-step instructions, many photos and drawings.
• Includes adjustment data, torque wrench settings, and troubleshooting tables.
• Clear wiring diagrams.

Product details

Details:	456 pages, 25 x 18 x 2.5 cm / 9.8 x 7.1 x 0.98 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Clymer (USA, 2003)
Series:	Clymer Motorcycle Service and Repair Manual (M406)
ISBN:	9780892878512

More information on the Clymer Repair Manuals

Yamaha YZ / WR 400 (1998-2000), YZ / WR 426 (2000-2002), YZ / WR 450 (2003-2005) (1998-2005)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha motorcycles:
- YZ / WR 400 (1998-2000)
- YZ / WR 426 (2000-2002)
- YZ / WR 450 (2003-2005).

This 405-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ / WR 400, 426 and 450 motorcycles are:

• Engine - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	405 pages, 28 x 21.5 x 2.3 cm / 11 x 8.5 x 0.91 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2024)
Series:	Cyclepedia Motorcycle Service Manual (CPP-121)
ISBN:	9798305201925

Yamaha YZ 125 - Two Stroke (1998-2004)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha YZ 125 motorcycles.

Model years: 1998-2004.

This 301-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ 125 motorcycles are:

• Engine (2-stroke) - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	301 pages, 28 x 21.5 x 1.7 cm / 11 x 8.5 x 0.67 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2024)
Series:	Cyclepedia Motorcycle Service Manual (CPP-160)
ISBN:	9798304813112

Yamaha YZ 125 Two-Stroke (2005-2021)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha YZ 125 motorcycles.

Model years: 2005-2021.

This 410-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ 125 2-stroke motorcycles are:

• Engine (2-stroke) - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	410 pages, 28 x 21.5 x 2.4 cm / 11 x 8.5 x 0.94 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2025)
Series:	Cyclepedia Motorcycle Service Manual (CPP-294)
ISBN:	9798307407141

Yamaha YZ 250 F (2021-2023)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha YZ 250 F motorcycles.

Model years: 2021-2023.

This 472-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ 250 F motorcycles are:

• Engine - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	472 pages, 28 x 21.5 x 2.7 cm / 11 x 8.5 x 1.06 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2025)
Series:	Cyclepedia Motorcycle Service Manual (CPP-326)
ISBN:	9798308064916

Yamaha YZ 250 F Four Stroke (2006-2009)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha YZ 250 F motorcycles.

Model years: 2006-2009.

This 337-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ 250 F Four Stroke motorcycles are:

• Engine (4-stroke) - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	337 pages, 28 x 21.5 x 1.9 cm / 11 x 8.5 x 0.75 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2025)
Series:	Cyclepedia Motorcycle Service Manual (CPP-166)
ISBN:	9798305500387

Yamaha YZ 250 F Four-Stroke (2010-2013)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha YZ 250 F motorcycles.

Model years: 2010-2013.

This 464-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ 250 F Four-Stroke motorcycles are:

• Engine (4-stroke) - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	464 pages, 28 x 21.5 x 2.7 cm / 11 x 8.5 x 1.06 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2025)
Series:	Cyclepedia Motorcycle Service Manual (CPP-299)
ISBN:	9798309611010

Yamaha YZ 250 Two-Stroke (2005-2021)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha YZ 250 motorcycles.

Model years: 2005-2021.

This 366-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ 250 motorcycles are:

• Engine (2-stroke) - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	366 pages, 28 x 21.5 x 2.1 cm / 11 x 8.5 x 0.83 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2024)
Series:	Cyclepedia Motorcycle Service Manual (CPP-290)
ISBN:	9798304455800

Yamaha YZ 450 F (2006-2009)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha YZ 450 F motorcycles.

Versions:
- 2006 YZ 450 F (YZ450 FV)
- 2006 YZ 450 F 50th Anniversary (YZ450 FSPV)
- 2007 YZ 450 F (YZ450 FW)
- 2008 YZ 450 F (YZ450 FXL)
- 2008 YZ 450 F (YZ450 FXW)
- 2006-2009 YZ 450 F (YZ450 FYL)
- 2009 YZ 450 F (YZ450 FYW).

This 441-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ 450 F motorcycles are:

• Engine - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	441 pages, 28 x 21.5 x 2.5 cm / 11 x 8.5 x 0.98 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2024)
Series:	Cyclepedia Motorcycle Service Manual (CPP-278)
ISBN:	9798304034517

Yamaha YZ 450 F (2010-2013)

NEW

Cyclepedia workshop manual for maintenance and repair of the Yamaha YZ 450 F motorcycles.

Model years: 2010-2013.

This 366-page repair manual includes clear step-by-step instructions, supplemented with detailed b/w photos, drawings and wiring diagrams. Comprehensive information on work on the engine, transmission, fuel system, suspension, brakes and electrical components.

The main chapters of this Cyclepedia workshop manual for Yamaha YZ 450 F motorcycles are:

• Engine - block, crankshaft and cylinder head
• Fuel and exhaust system - adjustment, fuel tank and exhaust
• Transmission - clutch, gearbox and final drive
• Electrical system - charging system, ignition, lighting and comprehensive wiring diagrams
• Chassis and suspension - front fork, rear swing arm, steering and shock absorbers
• Brakes and wheels - front and rear brake systems, bearings, adjustment and inspection
• Periodic maintenance - inspection, filters and oil change
• Adjustments and troubleshooting.

This manual is an indispensable service guide for anyone who performs maintenance, repairs, overhauls or restorations on Yamaha motorcycles. All specifications, maintenance schedules and tightening torques are clearly summarised for quick reference.

Product details

Details:	366 pages, 28 x 21.5 x 2.1 cm / 11 x 8.5 x 0.83 in, paperback
Illustrations:	numerous photos and drawings
Publisher:	Cyclepedia Press LLC (USA, 2025)
Series:	Cyclepedia Motorcycle Service Manual (CPP-245)
ISBN:	9798305931747