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YZ85(W)/YZ85W1/YZ85LW(W) OWNERS MANUAL 2006 by Yamaha Motor Co., Ltd. 1st edition, March 2006 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Co., Ltd. is expressly prohibited. Printed in Japan.

TABLE OF CONTENTS

SAFETY INFORMATION.1-1 Location of important labels.1-4 DESCRIPTION..2-1 Left view..2-1 Right view..2-2 Controls and instruments.2-3 INSTRUMENT AND CONTROL FUNCTIONS..3-1 Handlebar switch..3-1 Clutch lever.3-1 Shift pedal..3-1 Brake lever..3-2 Brake pedal.3-2 Fuel tank cap..3-3 Fuel..3-3 Fuel tank breather hose..3-5 Fuel cock..3-5 Starter (choke) knob..3-6 Kickstarter..3-6 Seat..3-6 Adjusting the front fork.3-7 Front fork bleeding..3-8 Adjusting the shock absorber assembly..3-9 Removable sidestand.3-12 PRE-OPERATION CHECKS.4-1 Pre-operation check list.4-2 OPERATION AND IMPORTANT RIDING POINTS.. 5-1 Starting and warming up a cold engine... 5-1 Starting a warm engine. 5-1 Shifting.. 5-2 Engine break-in.. 5-3 Parking.. 5-4 PERIODIC MAINTENANCE AND MINOR REPAIR.. 6-1 Periodic maintenance and lubrication chart. 6-2 Checking the spark plug. 6-8 Transmission oil.. 6-9 Coolant.. 6-10 Cleaning the air filter element. 6-12 Adjusting the carburetor.. 6-14 Adjusting the throttle cable free play. 6-14 Tires.. 6-15 Spoke wheels.. 6-17 Accessories and replacement parts... 6-17 Adjusting the clutch lever free play. 6-17 Checking the front and rear brake pads.. 6-18 Checking the brake fluid level. 6-19 Changing the brake fluid. 6-20 Drive chain slack. 6-20 Cleaning and lubricating the drive chain.. 6-21 Checking and lubricating the cables.. 6-22 Checking and lubricating the throttle grip and cable.. 6-22 Checking and lubricating the brake and shift pedals.. 6-23 Checking and lubricating the brake and clutch levers. 6-23 Lubricating the swingarm pivots. 6-24 Lubricating the rear suspension. 6-24 Checking the front fork.. 6-24 Checking the steering. 6-25 Checking the wheel bearings. 6-26 Supporting the motorcycle. 6-26 Front wheel.. 6-27 Rear wheel.. 6-27 Troubleshooting.. 6-29 Troubleshooting charts.. 6-30 MOTORCYCLE CARE AND STORAGE.. 7-1 Care.. 7-1 Storage.. 7-3 SPECIFICATIONS.. 8-1 CONSUMER INFORMATION. 9-1 Identification numbers.. 9-1

SAFETY INFORMATION

EAU41460

Safe riding

Always make pre-operation checks. Careful checks may help prevent an accident. This motorcycle is designed for offroad use only, therefore, it is illegal to operate it on public streets, roads, or highways, even a dirt or gravel one. Off-road use on public lands may be illegal. Please check local regulations before riding. This motorcycle is designed to carry the operator only. No passengers. Many accidents involve inexperienced operators. Make sure that the operator is qualified and that you only lend your motorcycle to other qualified operators. Know your skills and limits. Staying within your limits may help you to avoid an accident. Many accidents have been caused by error of the motorcycle operator. A typical error made by the operator is veering wide on a turn due to EXCESSIVE SPEED or un-

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YZ85LW(W)

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For Oceania

DESCRIPTION

EAU10410

Left view

1. 2. 3. 4. 5. 6. 7.

Radiator cap (page 6-10) Fuel cock (page 3-5) Shock absorber assembly spring preload adjusting nut (page 3-9) Air filter element (page 6-12) Seat (page 3-6) Shift pedal (page 3-1) Starter (choke) knob (page 3-6)

EAU10420

Right view
1. Shock absorber assembly compression damping force adjusting screw (page 3-9) 2. Kickstarter (page 3-6) 3. Front fork rebound damping force adjusting screw (page 3-7) 4. Bleed screw (page 3-8) 5. Front fork compression damping force adjusting screw (page 3-7) 6. Spark plug cap (page 6-8) 7. Oil filler cap (page 6-9) 8. Coolant drain bolt (page 6-11) 2-2
9. Transmission oil drain bolt (page 6-9) 10.Brake pedal (page 3-2) 11.Shock absorber assembly rebound damping force adjusting screw (page 3-9)

EAU10430

Controls and instruments

1. 2. 3. 4. 5.

Clutch lever (page 3-1) Left handlebar switch (page 3-1) Brake lever (page 3-2) Throttle grip (page 6-14) Fuel tank cap (page 3-3)
INSTRUMENT AND CONTROL FUNCTIONS
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Handlebar switch

Clutch lever

Shift pedal

1. Engine stop button ENGINE STOP

EAU12670

1. Clutch lever

1. Shift pedal

ENGINE STOP button Hold this button pushed until the engine stops in case of an emergency, such as when the vehicle overturns or when the throttle cable is stuck.
The clutch lever is located at the left handlebar grip. To disengage the clutch, pull the lever toward the handlebar grip. To engage the clutch, release the lever. The lever should be pulled rapidly and released slowly for smooth clutch operation.
The shift pedal is located on the left side of the engine and is used in combination with the clutch lever when shifting the gears of the 6-speed constant-mesh transmission equipped on this motorcycle.

EAU41261

Brake lever
The brake lever is located at the right handlebar grip. To apply the front brake, pull the lever toward the handlebar grip.
2. While holding the lever pushed away from the handlebar grip, turn the adjusting bolt in direction (a) to increase the distance, and in direction (b) to decrease it.
Distance between the brake lever and the handlebar grip: Minimum (shortest): 76 mm (2.99 in) Standard: 95 mm (3.74 in) Maximum (longest): 97 mm (3.82 in)

EAU12941

Brake pedal

1. Brake pedal

3. Tighten the locknut.
1. 2. 3. 4. Brake lever Locknut Adjusting bolt Distance between brake lever and handlebar grip
The brake pedal is on the right side of the motorcycle. To apply the rear brake, press down on the brake pedal.
The brake lever is equipped with a position adjusting bolt. Adjust the distance between the brake lever and the handlebar grip as follows. 1. Loosen the locknut.

EAU13180 EAU41831

Fuel tank cap
This motorcycle has been designed to use a premixed fuel of gasoline and 2stroke engine oil. Always mix the gasoline and oil in a clean container before filling the fuel tank.

ECA15601

CAUTION: Always use fresh gasoline, and fill the fuel tank with a fresh mix just before riding. Do not use premixed fuel that is more than a few hours old. Mixing gasoline and 2-stroke engine oil Pour 2-stroke engine oil into a clean container, and then add gasoline. To mix the fuel thoroughly, shake the container from side to side.
1. 2-stroke engine oil 2. Gasoline 3. Container

1. Fuel tank cap

To remove the fuel tank cap, turn it counterclockwise, and then pull it off. To install the fuel tank cap, insert it into the tank opening, and then turn it clockwise.

EWA11090

WARNING Make sure that the fuel tank cap is properly closed before riding.
Recommended fuel: Premium unleaded gasoline only Recommended 2-stroke engine oil: See page 8-1. Fuel tank capacity: 5.0 L (1.32 US gal) (1.10 Imp.gal) Mixing ratios (gasoline to oil): Break-in period: 15:1 After break-in: 30:1

ECA15590

CAUTION: Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts, such as the piston rings as well as to the exhaust system.
Your Yamaha engine has been designed to use premium unleaded gasoline with a pump octane number [(R+M)/2] of 91 or higher, or a research octane number of 95 or higher. If knocking (or pinging) occurs, use a gasoline of a different brand. If the recommended 2-stroke engine oil is not available, use an equivalent oil.

ECA15551

Filling the fuel tank

ECA10070

CAUTION: Immediately wipe off spilled fuel with a clean, dry, soft cloth, since fuel may deteriorate painted surfaces or plastic parts. 3

CAUTION: Never mix two brands of 2-stroke engine oil in the same batch. Always use the same type of oil to ensure maximum engine performance. Should it be necessary to use a different oil brand, be sure to drain the fuel tank and the carburetor float chamber of the old premixed fuel prior to filling with the new type.
1. Fuel level 2. Fuel tank filler tube
Make sure that there is sufficient fuel in the tank. Fill the fuel tank to the bottom of the filler tube as shown.

EWA10880

Do not overfill the fuel tank, otherwise it may overflow when the fuel warms up and expands. Avoid spilling fuel on the hot engine.

EAU41360 EAU41280

Fuel tank breather hose

Fuel cock

The fuel cock supplies fuel from the tank to the carburetor while filtering it also. The fuel cock has two positions: OFF
1. Arrow mark positioned over ON 1. Fuel tank breather hose 2. One-way valve
Before operating the motorcycle: G Check the fuel tank breather hose connection. G Check the fuel tank breather hose for cracks or damage, and replace it if damaged. G Make sure that the end of the fuel tank breather hose is not blocked, and clean it if necessary. NOTE: If the fuel tank breather hose falls out, reinstall it on the fuel tank cap with the arrow mark on the one-way valve pointed downward as shown.
With the lever in this position, fuel flows to the carburetor. Normal riding is done with the lever in this position.
1. Arrow mark positioned over OFF
With the lever in this position, fuel will not flow. Always return the lever to this position when the engine is not running.
EAU13640 EAU13650 EAU13960

Starter (choke) knob

Kickstarter
To remove the seat Remove the bolts, and then pull the seat off.

1. Starter (choke) knob

1. Kickstarter lever
Starting a cold engine requires a richer air-fuel mixture, which is supplied by the starter (choke). Move the knob in direction (a) to turn on the starter (choke). Move the knob in direction (b) to turn off the starter (choke).

10. Install the seat.

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2. To increase the throttle cable free play, turn the adjusting nut in direction (a). To decrease the throttle cable free play, turn the adjusting nut in direction (b).

EAU41820

To maximize the performance, durability, and safe operation of your motorcycle, note the following points regarding the specified tires. Tire air pressure The tire air pressure should be checked and, if necessary, adjusted before each ride.

EWA14380

Tire inspection
G 1. Locknut 2. Throttle cable free play adjusting nut
1. Tire sidewall 2. Tire tread depth
The tire air pressure must be checked and adjusted on cold tires (i.e., when the temperature of the tires equals the ambient temperature). The tire air pressure must be adjusted in accordance with the weight of the rider, the riding speed, and the riding conditions.
The tires must be checked before each ride.

ECA15580

Standard tire air pressure: Front: 100 kPa (15 psi) (1.00 kgf/cm) Rear: 100 kPa (15 psi) (1.00 kgf/cm)
Be sure the bead stoppers are tightened. Loose bead stoppers will cause the tire to slip off the rim if tire pressure is too low. Be sure the valve stem is positioned straight. A tilted valve stem indicates that the tire has slipped from its original position on the rim. Rotate the tire so that the valve stem is positioned straight.
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If the center tread depth reaches the specified limit, if the tire has a nail or glass fragments in it, or if the sidewall is cracked, have a Yamaha dealer replace the tire immediately.
Minimum tire tread depth (front and rear): 4.0 mm (0.16 in) Front tire: Size: YZ85 70/100-17 40M YZ85LW 70/100-19 42M YZ85LWW 70/100-19 42M YZ85W 70/100-17 40M YZ85W1 70/100-17 40M Manufacturer/model: YZ85 DUNLOP/D739FA (ZAF) YZ85 DUNLOP/D756F (AUT)(BEL)(CHE)(DEU)(DNK)(ES P)(FIN)(FRA)(GBR)(GRC)(IRL)(N LD)(NOR)(PRT)(SWE) YZ85LW DUNLOP/D756F YZ85LWW DUNLOP/D756F YZ85W DUNLOP/D756F YZ85W1 DUNLOP/D756F Rear tire: Size: YZ85 90/100-14 49M YZ85LW 90/100-16 52M YZ85LWW 90/100-16 52M YZ85W 90/100-14 49M YZ85W1 90/100-14 49M Manufacturer/model: DUNLOP/D756

EWA14390

Tire information This motorcycle is equipped with spoke wheels and tube tires.

EWA10460

WARNING 6
sively worn tires decreases riding stability and can lead to loss of control. The replacement of all wheeland brake-related parts, including the tires, should be left to a Yamaha dealer, who has the necessary professional knowledge and experience. It is not recommended to patch a punctured tube. If unavoidable, however, patch the tube very carefully and replace it as soon as possible with a highquality product.
The front and rear tires should be of the same make and design, otherwise the handling characteristics of the vehicle cannot be guaranteed. After extensive tests, only the tires listed below have been approved for this model by Yamaha Motor Co., Ltd.
Have a Yamaha dealer replace excessively worn tires. Operating the motorcycle with exces6-16
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EAU21940 EAU40431 EAU22031

Spoke wheels

To maximize the performance, durability, and safe operation of your motorcycle, note the following points regarding the specified wheels. G The wheel rims should be checked for cracks, bends or warpage, and the spokes for looseness or damage before each ride. If any damage is found, have a Yamaha dealer replace the wheel. Do not attempt even the smallest repair to the wheel. A deformed or cracked wheel must be replaced. G The wheel should be balanced whenever either the tire or wheel has been changed or replaced. An unbalanced wheel can result in poor performance, adverse handling characteristics, and a shortened tire life. G Ride at moderate speeds after changing a tire since the tire surface must first be broken in for it to develop its optimal characteristics.
Accessories and replacement parts

EWA14481

Adjusting the clutch lever free play
WARNING The accessories or replacement parts you choose for your vehicle should be designed specifically for this model, and they must be securely mounted to maintain the inherent stability of the original design. Genuine Yamaha Parts and Accessories are designed and tested to be compatible with your vehicle. Yamaha recommends the use of Genuine Yamaha Parts and Accessories before making a purchase. Use of non-Yamaha-approved accessories or replacement parts may cause loss of handling stability and riding safety. Since Yamaha cannot control the quality of accessories or parts manufactured by other companies, Yamaha cannot be held liable for any consequences caused by the use of items which have not been approved by Yamaha.
1. Clutch lever free play 2. Locknut (clutch lever) 3. Adjusting bolt
The clutch lever free play should measure 10.015.0 mm (0.390.59 in) as shown. Periodically check the clutch lever free play and, if necessary, adjust it as follows. 1. Loosen the locknut at the clutch lever. 2. To increase the clutch lever free play, turn the adjusting bolt in direction (a). To decrease the clutch lever free play, turn the adjusting bolt in direction (b).

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3. If the specified clutch lever free play could be obtained as described above, tighten the locknut and skip the rest of the procedure, otherwise, proceed as follows. 4. Fully turn the adjusting bolt in direction (a) to loosen the clutch cable. 5. Loosen the locknut further down the clutch cable.

EAU22390 EAU22500

Checking the front and rear brake pads
The front and rear brake pads must be checked for wear at the intervals specified in the periodic maintenance and lubrication chart.

EAU22400

Rear brake pads

Front brake pads

1. Lining thickness
Check each rear brake pad for damage and measure the lining thickness. If a brake pad is damaged or if the lining thickness is less than 1.0 mm (0.04 in), have a Yamaha dealer replace the brake pads as a set.
1. Lining thickness 1. Locknut (clutch cable) 2. Adjusting nut
6. To increase the clutch lever free play, turn the adjusting nut in direction (a). To decrease the clutch lever free play, turn the adjusting nut in direction (b). 7. Tighten both locknuts.
Check each front brake pad for damage and measure the lining thickness. If a brake pad is damaged or if the lining thickness is less than 0.8 mm (0.03 in), have a Yamaha dealer replace the brake pads as a set.
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EAU22580

Checking the brake fluid level

1. Minimum level mark

Before riding, check that the brake fluid is above the minimum level mark and replenish if necessary. A low brake fluid level may indicate worn brake pads and/or brake system leakage. If the brake fluid level is low, be sure to check the brake pads for wear and the brake system for leakage. Observe these precautions: G When checking the fluid level, make sure that the top of the brake fluid reservoir is level. G Use only the recommended quality brake fluid, otherwise the rubber seals may deteriorate, causing leakage and poor braking performance.
Recommended brake fluid: DOT 4
Be careful that water does not enter the brake fluid reservoir when refilling. Water will significantly lower the boiling point of the fluid and may result in vapor lock. Brake fluid may deteriorate painted surfaces or plastic parts. Always clean up spilled fluid immediately. As the brake pads wear, it is normal for the brake fluid level to gradually go down. However, if the brake fluid level goes down suddenly, have a Yamaha dealer check the cause.

Refill with the same type of brake fluid. Mixing fluids may result in a harmful chemical reaction and lead to poor braking performance.
Insufficient brake fluid may allow air to enter the brake system, possibly causing it to become ineffective.
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EAU22730 EAU22760

Changing the brake fluid
Have a Yamaha dealer change the brake fluid at the intervals specified in the NOTE after the periodic maintenance and lubrication chart. In addition, have the oil seals of the master cylinders and calipers as well as the brake hoses replaced at the intervals listed below or whenever they are damaged or leaking. G Oil seals: Replace every two years. G Brake hoses: Replace every four years. 6

Drive chain slack

The drive chain slack should be checked before each ride and adjusted if necessary.

EAU41410

To check the drive chain slack 1. Install the removable sidestand and place the motorcycle on it. NOTE: When checking and adjusting the drive chain slack, there should be no weight on the motorcycle. 2. Shift the transmission into the neutral position. 3. Move the rear wheel by pushing the motorcycle to locate the tightest portion of the drive chain, and then measure the drive chain slack as shown.
Drive chain slack: 35.045.0 mm (1.381.77 in)

1. Drive chain slack

4. If the drive chain slack is incorrect, adjust it as follows.

EAU41480

To adjust the drive chain slack 1. Loosen the axle nut and the locknut on each side of the swingarm. 2. To tighten the drive chain, turn the adjusting bolt on each side of the swingarm in direction (a). To loosen the drive chain, turn the adjusting bolt on each side of the swingarm in direction (b), and then push the rear wheel forward.
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NOTE: Using the alignment marks on each chain puller, make sure that both chain pullers are in the same position for proper wheel alignment. 3. Tighten both locknuts and the axle nut to the specified torques.
Tightening torques: Locknut: 16 Nm (1.6 mkgf, 11 ftlbf) Axle nut: 90 Nm (9.0 mkgf, 65 ftlbf)

EAU23013

Cleaning and lubricating the drive chain
The drive chain must be cleaned and lubricated at the intervals specified in the periodic maintenance and lubrication chart, otherwise it will quickly wear out, especially when riding in dusty or wet areas. Service the drive chain as follows.

The operation of the brake and shift pedals should be checked before each ride, and the pedal pivots should be lubricated if necessary.

Clutch lever 6

The operation of the brake and clutch levers should be checked before each ride, and the lever pivots should be lubricated if necessary.
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EAUM1650 EAU23250 EAU23271
Lubricating the swingarm pivots
Lubricating the rear suspension

Checking the front fork

The condition and operation of the front fork must be checked as follows at the intervals specified in the periodic maintenance and lubrication chart. To check the condition

EWA10750

WARNING Securely support the vehicle so that there is no danger of it falling over. The swingarm pivots must be lubricated at the intervals specified in the periodic maintenance and lubrication chart.
Recommended lubricant: Lithium-soap-based grease
The pivoting points of the rear suspension must be lubricated at the intervals specified in the periodic maintenance and lubrication chart.
Check the inner tubes for scratches, damage and excessive oil leakage. To check the operation 1. Place the vehicle on a level surface and hold it in an upright position. 2. While applying the front brake, push down hard on the handlebars several times to check if the front fork compresses and rebounds smoothly.
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EAU23280

Checking the steering
Worn or loose steering bearings may cause danger. Therefore, the operation of the steering must be checked as follows at the intervals specified in the periodic maintenance and lubrication chart. 1. Place a stand under the engine to raise the front wheel off the ground.

ECA10590

CAUTION: If any damage is found or the front fork does not operate smoothly, have a Yamaha dealer check or repair it. WARNING
Securely support the vehicle so that there is no danger of it falling over. 2. Hold the lower ends of the front fork legs and try to move them forward and backward. If any free play can be felt, have a Yamaha dealer check or repair the steering. 6
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EAU23290 EAU24350

Checking the wheel bearings

The front and rear wheel bearings must be checked at the intervals specified in the periodic maintenance and lubrication chart. If there is play in the wheel hub or if the wheel does not turn smoothly, have a Yamaha dealer check the wheel bearings.
Supporting the motorcycle
Since this model is not equipped with a centerstand, follow these precautions when removing the front and rear wheel or performing other maintenance requiring the motorcycle to stand upright. Check that the motorcycle is in a stable and level position before starting any maintenance. A strong wooden box can be placed under the engine for added stability. To service the front wheel 1. Stabilize the rear of the motorcycle by using a motorcycle stand or, if an additional motorcycle stand is not available, by placing a jack under the frame in front of the rear wheel. 2. Raise the front wheel off the ground by using a motorcycle stand. To service the rear wheel Raise the rear wheel off the ground by using a motorcycle stand or, if a motorcycle stand is not available, by placing
a jack either under each side of the frame in front of the rear wheel or under each side of the swingarm.
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EAU24360

Front wheel

EAU41340

4. Pull the wheel axle out, and then remove the wheel.

EAU25080

Rear wheel

EAU41310

To remove the front wheel

EWA10820

To remove the rear wheel
It is advisable to have a Yamaha dealer service the wheel. Securely support the motorcycle so that there is no danger of it falling over.

1. Wheel axle

EAU41420

1. Loosen the axle nut.

1. Washer 2. Axle nut
To install the front wheel 1. Lift the wheel up between the fork legs. 2. Insert the wheel axle from the right side. 3. Lower the front wheel so that it is on the ground. 4. Install the washer and axle nut, and then tighten the axle nut to the specified torque.
Tightening torque: Axle nut: 70 Nm (7.0 mkgf, 50 ftlbf)
1. Loosen the axle nut. 2. Lift the rear wheel off the ground according to the procedure on page 6-26. 3. Loosen the locknut and drive chain adjusting bolt on each side of the swingarm. 4. Remove the axle nut and washer.
2. Lift the front wheel off the ground according to the procedure on page 6-26. 3. Remove the axle nut and washer.
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NOTE: G Make sure that the retainer on the swingarm is inserted into the slot in the brake caliper bracket. G Make sure that there is enough space between the brake pads before installing the wheel.

1. 2. 3. 4.

Axle nut Washer Locknut Drive chain slack adjusting bolt
5. Push the wheel forward, and then remove the drive chain from the rear sprocket. NOTE: G If the drive chain is difficult to remove, remove the wheel axle first, and then lift the wheel upward enough to remove the drive chain from the rear sprocket. G The drive chain cannot be disassembled. 6. While supporting the brake caliper and slightly lifting the wheel, pull the wheel axle out.

After normal use Remove dirt with warm water, a mild detergent, and a soft, clean sponge, and then rinse thoroughly with clean water. Use a toothbrush or bottlebrush for hard-to-reach areas. Stubborn dirt and insects will come off more easily if the area is covered with a wet cloth for a few minutes before cleaning. After riding in the rain or near the sea Since sea salt is extremely corrosive, carry out the following steps after each ride in the rain or near the sea. 1. Clean the motorcycle with cold water and a mild detergent, after the engine has cooled down.

ECA10790

CAUTION: Do not use warm water since it increases the corrosive action of the salt. 2. Apply a corrosion protection spray on all metal, including chrome- and nickel-plated, surfaces to prevent corrosion.
After cleaning 1. Dry the motorcycle with a chamois or an absorbing cloth. 2. Immediately dry the drive chain and lubricate it to prevent it from rusting. 3. Use a chrome polish to shine chrome, aluminum and stainlesssteel parts, including the exhaust system. (Even the thermally induced discoloring of stainlesssteel exhaust systems can be removed through polishing.) 4. To prevent corrosion, it is recommended to apply a corrosion protection spray on all metal, including chrome- and nickel-plated, surfaces. 5. Use spray oil as a universal cleaner to remove any remaining dirt. 6. Touch up minor paint damage caused by stones, etc. 7. Wax all painted surfaces. 8. Let the motorcycle dry completely before storing or covering it.

EWA11130

If necessary, clean the brake discs and brake linings with a regular brake disc cleaner or acetone, and wash the tires with warm water and a mild detergent. Before riding at higher speeds, test the motorcycles braking performance and cornering behavior.

ECA10800

Apply spray oil and wax sparingly and make sure to wipe off any excess. Never apply oil or wax to any rubber and plastic parts, but treat them with a suitable care product. Avoid using abrasive polishing compounds as they will wear away the paint.
NOTE: Consult a Yamaha dealer for advice on what products to use.
Make sure that there is no oil or wax on the brakes or tires.

EAU41511

Storage
Short-term Always store your motorcycle in a cool, dry place and, if necessary, protect it against dust with a porous cover.

The model label is affixed to the location shown. Record the information on this label in the space provided. This information will be needed when ordering spare parts from a Yamaha dealer.
Accessories and replacement parts.. 6-17 Air filter element, cleaning.. 6-12 Fuel tank cap..3-3 Swingarm pivots, lubricating.. 6-24

Handlebar switch..3-1

Throttle cable free play, adjusting. 6-14 Throttle grip and cable, checking and lubricating. 6-22 Tires.. 6-15 Transmission oil.. 6-9 Troubleshooting. 6-29 Troubleshooting charts.. 6-30
Brake and clutch levers, checking and lubricating. 6-23 Brake and shift pedals, checking and lubricating. 6-23 Brake fluid, changing.. 6-20 Brake fluid level, checking.. 6-19 Brake lever.. 3-2 Brake pedal.. 3-2
Identification numbers..9-1

Kickstarter..3-6

Labels, location of..1-4

Model label...9-1

Vehicle identification number. 9-1
Cables, checking and lubricating.. 6-22 Carburetor, adjusting.. 6-14 Care... 7-1 Clutch lever.. 3-1 Clutch lever free play, adjusting. 6-17 Coolant.. 6-10
Parking..5-4 Part locations..2-1 Periodic maintenance and lubrication chart..6-2 Pre-operation check list..4-2
Wheel bearings, checking. 6-26 Wheel (front)... 6-27 Wheel (rear).. 6-27 Wheels.. 6-17
Rear suspension, lubricating..6-24
Drive chain, cleaning and lubricating. 6-21 Drive chain slack.. 6-20
Safety information..1-1 Seat..3-6 Shifting..5-2 Shift pedal..3-1 Shock absorber assembly, adjusting.3-9 Sidestand...3-12 Spark plug, checking.6-8 Specifications..8-1 Starter (choke) knob..3-6 Starting and warming up a cold engine...5-1 Steering, checking..6-25 Storage..7-3 Supporting the motorcycle..6-26
Engine break-in.. 5-3 Engine, starting a warm. 5-1 Engine stop button.. 3-1
Front and rear brake pads, checking. 6-18 Front fork, adjusting.. 3-7 Front fork, bleeding.. 3-8 Front fork, checking.. 6-24 Fuel.. 3-3 Fuel cock.. 3-5 Fuel tank breather hose. 3-5
PRINTED ON RECYCLED PAPER
PRINTED IN JAPAN 2006.04-1.41 CR (E)

www.yamaha-motor.eu

YZ85/LW
Lightweight motocross racer
Running with high-tech chassis and engine designs, the YZ85 and the large-wheel YZ85LW 2-strokes are a top choice for tomorrows pro riders. Designed to kick out holeshot-winning power, the free-revving 85cc liquid-cooled 2-stroke engine is one of the most advanced in its class. Like our large-capacity race bikes, the YZ85/LW models are equipped with upsidedown forks and a swingarm (link suspension) system for outstanding handling and steering qualities. And with large-diameter front and rear discs, lightweight aluminium rims and hubs and slimline bodywork, Yamahas YZ85/LW models are built for winners.
Highly-tuned 85cc liquid-cooled 2-stroke engine A serious race-bike for pro riders of the future Available in standard or large-wheel (LW) Large-diameter front and rear disc brakes Race-specification long-travel suspension systems Slimline and lightweight racing-blue bodywork

Engineered to win

When youre 100 per cent serious about winning in the dirt, the choice is clear: your future is with Yamaha. Thats because we have been building some of the worlds most successful off-road racing bikes for nearly 40 years. Yamahas YZ motocross models offer the most competitive engine and chassis packages, plus class-leading technologies and legendary build quality. Our off-road success story didnt just happen by chance. Yamahas long list of World and National Championships in motocross and enduro is the result of many years of commitment and devotion by our engineers and factory riders. Indeed, the will to win is an integral part of Yamahas DNA.
High-performance liquid-cooled 2-stroke engine
Races can be won or lost in the sprint to the first corner, and so the 85cc liquid-cooled 2-stroke engine has been tuned to deliver plenty of free-revving performance for holeshot-winning acceleration. And with its close-ratio 6-speed gearbox, the YZ85/LW rider can extract optimum efficiency from the highly-tuned engine.
High-specification front and rear suspension
The lightweight suspension on the YZ85/LW are built to the same advanced specification as on our larger MXGP-winning racers, and deliver remarkable handling performance together with precision steering. Longtravel upsidedown forks give 275 mm wheel movement - while the swingarm (link suspension) offers 282 mm travel (LW: 287 mm).
Large diameter disc brakes
Braking performance is just as important as engine power when it comes to winning races, and so the YZ85/ LW comes fully-equipped with one of the best set-ups in the class. A large-diameter 220 mm front disc generates strong, controllable and progressive braking, while a 190 mm rear disc provides reliable stopping power at the rear end.
Lightweight and slimline racing-blue bodywork
The YZ85/LWs beautifully-styled bodywork is a scaleddown version of the design used on our large-capacity YZ models. For low weight combined with high strength, the fenders, side panels and fuel tank are made from polypropylene, and the slimline tank and seat make for rapid weight shifting when entering and exiting corners.
Specially-tuned expansion chamber exhaust system
Every feature on this highly-competitive race bike has been developed to give you the edge on the track. The specially-designed expansion chamber exhaust ensures that the liquid-cooled engine delivers optimum performance - and the 6-speed close-ratio gearbox enables the rider to make optimum use of the freerevving motor.

Choice of standard and large-wheel (LW) models
To cater for youth riders of all sizes, Yamaha offer this model in standard wheel and large-wheel (LW) options. The YZ85 runs with a 356 mm (14 inch) rear wheel and 432 mm (17 inch) front wheel, while the YZ85LW is equipped with a 406 mm (16 inch) rear wheel and 483 mm (19 inch) front wheel.

Engine

Engine type Displacement Bore x stroke Compression ratio Lubrication system Carburettor Clutch Type Ignition system Starter system Transmission system Final transmission Single cylinder, liquid-cooled, 2-stroke, reed valve 84,7cc 47,5 mm x 47,8 mm 8,2 : 1 Premix Keihin PWK28/1 Wet, multiple-disc coil spring CDI Kick Constant Mesh, 6-speed Chain

Dimensions

Overall length Overall width Overall height Seat height Wheel base Minimum ground clearance Wet weight (including full oil and fuel tank) Fuel tank capacity Oil tank capacity Remark 1.818 / 1.903* mm 758 mm 1.161 / 1.205* mm 864 / 904* mm 1.255 / 1.286* mm 351 / 393* mm 71 / 73* kg 5 litres 0,5 litres *YZ85LW only

Chassis

Frame Front suspension system Front travel Caster Angle Trail Rear suspension system Rear Travel Front brake Rear brake Front tyre Rear tyre Semi double cradle Telescopic forks 275 mm mm Swingarm, (link suspension) 282 / 287* mm Single Disc, 220 mm Single Disc, 190 mm 70/100-17 40M / 70/100-19 42M 90/100-14 49M / 90/100-16 52M

Racing Blue

The Yamaha Chain of Quality
Yamaha technicians are fully trained and equipped to offer the best service and advice for your Yamaha product. For this reason, Yamaha strongly recommends visiting an official Yamaha dealer for all your service requirements. Yamaha Genuine Parts & Accessories are especially developed, designed and tested for our Yamaha product range. Yamaha also recommends the use of Yamalube and BYE helmets*. Yamalube is our own range of high-tech lubricants, the lifeblood of Yamaha engines. They are developed to carry on working effectively, no matter where you ride. Besides functional and style accessories, Yamaha offers a range of high quality, innovative riding gear designed to keep you comfortable and protected. An extensive range of casual wear is also available. For more information go to: www.yamaha-motor-acc.com

Always wear a helmet, eye protection and protective clothing. Yamaha encourage you to ride safely and respect fellow riders and the environment. Specifications and appearance of Yamaha products shown here are subject to change without notice and may vary according to requirements and conditions. For further details, please consult your Yamaha dealer. Please check availability of colours with your local Yamaha dealer.