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.

dercornering (insufficient lean angle for the speed). Never travel faster than warranted by conditions. Ride cautiously in unfamiliar areas. You may encounter hidden obstacles that could cause an accident. The posture of the operator is important for proper control. The operator should keep both hands on the handlebar and both feet on the operator footrests during operation to maintain control of the motorcycle. Never ride under the influence of alcohol or other drugs. Be sure the transmission is in neutral before starting the engine.
Wear a face shield or goggles. Wind in your unprotected eyes could contribute to an impairment of vision that could delay seeing a hazard. The use of a jacket, heavy boots, trousers, gloves, etc., is effective in preventing or reducing abrasions or lacerations. Never wear loose-fitting clothes, otherwise they could catch on the control levers, footrests, or wheels and cause injury or an accident. Never touch the engine or exhaust system during or after operation. They become very hot and can cause burns. Always wear protective clothing that covers your legs, ankles, and feet.
Protective apparel The majority of fatalities from motorcycle accidents are the result of head injuries. The use of a safety helmet is the single most critical factor in the prevention or reduction of head injuries. G Always wear an approved helmet.
Modifications Modifications made to this motorcycle not approved by Yamaha, or the removal of original equipment, may render the motorcycle unsafe for use and may cause severe personal injury. Modifications may also make your motorcycle illegal to use.
Loading and accessories Adding accessories to your motorcycle can adversely affect stability and handling if the weight distribution of the motorcycle is changed. To avoid the possibility of an accident, use extreme caution when adding accessories to your motorcycle. Use extra care when riding a motorcycle that has added accessories. Here are some general guidelines to follow if adding accessories to your motorcycle: Loading G Accessory weight should be kept as low and close to the motorcycle as possible. Make sure to distribute the weight as evenly as possible on both sides of the motorcycle to minimize imbalance or instability. G Shifting weights can create a sudden imbalance. Make sure that accessories are securely attached to the motorcycle before riding. Check accessory mounts frequently. G Never attach any large or heavy items to the handlebar, front fork, or front fender. Accessories Genuine Yamaha accessories have been specifically designed for use on this motorcycle. Since Yamaha cannot test all other accessories that may be available, you must personally be responsible for the proper selection, installation and use of non-Yamaha accessories. Use extreme caution when selecting and installing any accessories. Keep these guidelines in mind for mounting accessories in addition to those provided under Loading. G Never install accessories or that would impair the performance of your motorcycle. Carefully inspect the accessory before using it to make sure that it does not in any way reduce ground clearance or cornering clearance, limit suspension travel, steering travel or control operation. Accessories fitted to the handlebar or the front fork area can create instability due to improper weight distribution or aerodynamic changes. If accessories are added to the handlebar or

5PA-2118K-10

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For Europe

Before you operate this vehicle, read the owners manual. Prima di usare il veicolo, leggete il manuale di istruzioni. Lire le manuel du propritaire avant dutiliser ce vhicule. Lesen Sie die Bedienungsanleitung bevor Sie dieses Fahrzeug fahren. Antes de conducir este vehculo, lea el Manual del Propietario.

5PA-21568-00

TIRE INFORMATION
YAMAHA MOTOR CO., LTD. SHIZUOKA JAPAN

YAMAHA

4GB-2155A-00
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For Oceania and South Africa
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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
EAU40660 EAU12850 EAU12870

Handlebar switch

EWA10180

soften the rebound damping, turn the adjusting screw on each fork leg in direction (b).
Rebound damping setting: Minimum (soft): 20 click(s) in direction (b)* Standard: 7 click(s) in direction (b)* Maximum (hard): 1 click(s) in direction (b)* * With the adjusting screw fully turned in direction (a)

WARNING 3

1. Projection 2. Seat holder
Always adjust both fork legs equally, otherwise poor handling and loss of stability may result. Rebound damping force
2. Place the seat in the original position, and then tighten the bolts. NOTE: Make sure that the seat is properly secured before riding.
Compression damping force
1. Rebound damping force adjusting screw
To increase the rebound damping force and thereby harden the rebound damping, turn the adjusting screw on each fork leg in direction (a). To decrease the rebound damping force and thereby
1. Rubber cap 2. Compression damping force adjusting screw
1. Remove the rubber cap by pulling it out of the front fork leg.
2. To increase the compression damping force and thereby harden the compression damping, turn the adjusting screw on each fork leg in direction (a). To decrease the compression damping force and thereby soften the compression damping, turn the adjusting screw on each fork leg in direction (b).
Compression damping setting: Minimum (soft): 20 click(s) in direction (b)* Standard: YZ85(W)/YZ85W1: 10 click(s) in direction (b)* YZ85LW(W): 9 click(s) in direction (b)* Maximum (hard): 1 click(s) in direction (b)* * With the adjusting screw fully turned in direction (a)

EAU14790

NOTE: Although the total number of clicks of a damping force adjusting mechanism may not exactly match the above specifications due to small differences in production, the actual number of clicks always represents the entire adjusting range. To obtain a precise adjustment, it would be advisable to check the number of clicks of each damping force adjusting mechanism and to modify the specifications as necessary.

Front fork bleeding

1. Bleed screw
When riding in extremely rough conditions, the air temperature and pressure in the front fork will rise. This will increase the spring preload and harden the front suspension. If this occurs, bleed the front fork as follows. 1. Elevate the front wheel by placing a suitable stand under the engine. NOTE: When bleeding the front fork, there should be no weight on the front end of the vehicle. 2. Remove the bleed screws and allow all of the air to escape from each fork leg.
3. Install the rubber cap.

ECA10100

CAUTION: Never attempt to turn an adjusting mechanism beyond the maximum or minimum settings.

Compression damping force To increase the compression damping force and thereby harden the compression damping, turn the adjusting screw in direction (a). To decrease the compression damping force and thereby soften the compression damping, turn the adjusting screw in direction (b).
3. Tighten the locknut to the specified torque.
Tightening torque: Locknut: 35 Nm (3.5 mkgf, 25 ftlbf)
ifications due to small differences in production, the actual number of clicks always represents the entire adjusting range. To obtain a precise adjustment, it would be advisable to check the number of clicks of each damping force adjusting mechanism and to modify the specifications as necessary.

EWA10220

Do not deform or damage the gas cylinder in any way, as this will result in poor damping performance. Always have a Yamaha dealer service the shock absorber.
1. Compression damping force adjusting screw
WARNING This shock absorber contains highly pressurized nitrogen gas. For proper handling, read and understand the following information before handling the shock absorber. The manufacturer cannot be held responsible for property damage or personal injury that may result from improper handling. G Do not tamper with or attempt to open the gas cylinder. G Do not subject the shock absorber to an open flame or other high heat sources, otherwise it may explode due to excessive gas pressure.
Compression damping setting: Minimum (soft): 20 click(s) in direction (b)* Standard: YZ85(W)/YZ85Wclick(s) in direction (b)* For Europe only: 12 click(s) in direction (b)* Standard: YZ85LW(W) 7 click(s) in direction (b)* For Europe only: 12 click(s) in direction (b)* Maximum (hard): 1 click(s) in direction (b)* * With the adjusting screw fully turned in direction (a)
NOTE: Although the total number of clicks of a damping force adjusting mechanism may not exactly match the above spec-
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EAU41381

Removable sidestand

1. Sidestand

This motorcycle is equipped with a removable sidestand. NOTE: Make sure that the sidestand is properly secured when the motorcycle is being supported or is being transported.

EWA14601

Never apply force on the motorcycle while it is on the sidestand. Always remove the sidestand before starting out.

EAU16690

4. Once the motorcycle has reached a speed high enough to change gears, close the throttle, and at the same time, quickly pull the clutch lever in. 5. Shift the transmission into second gear. (Make sure not to shift the transmission into the neutral position.) 6. Open the throttle halfway and gradually release the clutch lever. 7. Follow the same procedure when shifting to the next gear.

EAU16710

To start out and accelerate 1. Pull the clutch lever to disengage the clutch. 2. Shift the transmission into first gear. 3. Open the throttle gradually and simultaneously release the clutch lever slowly.
To decelerate 1. Close the throttle and apply both the front and the rear brakes to slow the motorcycle. 2. Downshift through the gears and shift the transmission into the neutral position when the motorcycle is almost completely stopped.

EAU41502

Engine break-in
1. Before starting the engine, fill the fuel tank with a break-in oil-fuel mixture as follows.
Recommended 2-stroke engine oil: See page 8-1. Mixing ratio (gasoline to oil): 15:1
2. Start and warm up the engine. Check the operation of the controls and the engine stop button. (See page 3-1.) 3. Operate the motorcycle in the lower gears at moderate throttle openings for five to eight minutes. Stop the engine and check the spark plug condition (see page 6-8); it will show a rich condition during break-in. 4. Allow the engine to cool. Restart the engine and operate the motorcycle as in the step above for five minutes. Then, very briefly shift to the higher gears and check the full-throttle response. Stop the engine and check the spark plug.
5. After again allowing the engine to cool, restart and run the motorcycle for five more minutes. Full throttle and the higher gears may be used, but sustained full-throttle operation should be avoided. Stop the engine and check the spark plug again. 6. Allow the engine to cool, remove the cylinder head and cylinder, and inspect the piston and cylinder. Remove any high spots on the piston with #600-grit wet sandpaper. Clean all components and carefully reassemble the cylinder head and cylinder.

EWA10320

plug condition. Restart the motorcycle and ride it for about 10 to 15 more minutes. The motorcycle will now be ready to ride normally. After the engine break-in period, thoroughly check the motorcycle for loose parts, oil leakage and any other problems. Be sure to inspect and make adjustments thoroughly, especially cable and drive chain slack and loose spokes. In addition, check all fittings and fasteners for looseness, and tighten if necessary.

ECA15560

WARNING If you are not familiar with maintenance work, have a Yamaha dealer do it for you. 7. Drain the break-in oil-fuel mixture from the fuel tank and refill with the specified mix. (See page 3-3.) 8. Start the engine and check the operation of the motorcycle throughout its entire operating range. Stop the engine and check the spark

5 * Cylinder

6 * Clutch
10 * Kickstarter system 11 * Exhaust system

12 * Crankshaft

NO. ITEM ROUTINE Check carburetor settings and for obstructions. Adjust and clean. Check condition. Clean and regap. Replace. Check chain slack, alignment and condition. Adjust and thoroughly lubricate chain with Yamaha chain and cable lube or equivalent. Replace. Check coolant level and for leakage. 16 * Cooling system Check hoses for cracks or damage. Check radiator cap spring operation. Change coolant. 17 * Chassis fasteners 18 * Air filter element Replace. 19 * Frame 20 * Fuel line Clean and check for damage. Clean and check for leakage. Check all chassis fitting and fasteners. Correct or tighten if necessary. Clean. Every 2 years After break-in Every race Every Every third race fifth race As required

13 * Carburetor

Spark plug
NO. ITEM ROUTINE Adjust lever position and pedal height. Lubricate pivot points. Check brake disk surface. Check fluid level and for leakage. Tighten brake disk bolts, caliper bolts, master cylinder bolts and union bolts. After break-in Every race Every Every third race fifth race As required

21 * Brakes

Replace brake pads. Replace brake fluid. Check operation and for oil leakage. Adjust if necessary. Clean dust seal and lubricate with lithium-soap-based grease. Replace fork oil. Replace oil seals. Check operation and adjust. Tighten if necessary. Shock absorber assem23 * bly Lubricate with molybdenum disulfide grease. Every year

22 * Front fork

(After washing the motorcycle or riding in the rain)
NO. ITEM Drive chain roller and support guide ROUTINE Check for wear or damage. Replace if necessary. Check operation and tighten if necessary. Lubricate with molybdenum disulfide grease. Check operation, free play, and tighten if necessary. 26 * Steering head Clean and lubricate with lithium-soap-based grease. Replace bearings. Check tire air pressure, wheel runout, spokes for looseness, and tires for wear. Tighten sprocket bolts if necessary. 27 * Tires and wheels Check wheel bearings for looseness. Lubricate wheel bearings with lithium-soap-based grease. Replace wheel bearings. Moving parts and ca28 * bles 29 * Throttle grip housing and cable Lubricate. Check operation and free play. Adjust the throttle cable free play if necessary. Lubricate the throttle grip housing and cable. After break-in Every race Every Every third race fifth race As required

25 * Rear suspension

EAU42010
NOTE: G Hydraulic brake service Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid. Replace the brake hoses every four years and if cracked or damaged.

EAUM1311

Tightening torque: Coolant drain bolt: 10 Nm (1.0 mkgf, 7.2 ftlbf)
7. Pour the recommended coolant into the radiator until it is full.
Antifreeze/water mixture ratio: 1:1 Recommended antifreeze: High-quality ethylene glycol antifreeze containing corrosion inhibitors for aluminum engines Coolant quantity: Radiator capacity (including all routes): 0.54 L (0.57 US qt) (0.48 Imp.qt)
4. Remove the coolant drain bolt to drain the cooling system.
To change the coolant 1. Place the vehicle on a level surface and let the engine cool if necessary. 2. Place a container under the engine to collect the used coolant.
1. Coolant drain bolt 6-11
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ECA10471

If coolant is not available, use distilled water or soft tap water instead. Do not use hard water or salt water since it is harmful to the engine. If water has been used instead of coolant, replace it with coolant as soon as possible, otherwise the cooling system will not be protected against frost and corrosion. If water has been added to the coolant, have a Yamaha dealer check the antifreeze content of the coolant as soon as possible, otherwise the effectiveness of the coolant will be reduced.
10. Start the engine, and then check the vehicle for coolant leakage. If coolant is leaking, have a Yamaha dealer check the cooling system.

EAU41431

Cleaning the air filter element
The air filter element should be cleaned at the intervals specified in the periodic maintenance and lubrication chart. Clean the air filter element more frequently if you are riding in unusually wet or dusty areas. 1. Remove the seat. (See page 3-6.) 2. Remove the air filter case cover as shown.
8. Install the radiator cap, start the engine, let it idle for several minutes, and then turn it off. 9. Remove the radiator cap to check the coolant level in the radiator. If necessary, add sufficient coolant until it reaches the top of the radiator, and then install the radiator cap.

1. Air filter case cover

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NOTE: The sponge material should be wet but not dripping.
Recommended oil: Yamaha foam air filter oil or other quality foam air filter oil
3. Remove the air filter element by removing the wing bolt and washer.
1. Sponge material 2. Air filter element frame
5. Clean the sponge material with solvent, and then squeeze the remaining solvent out.
7. Pull the sponge material over the air filter element frame. 8. Insert the air filter element into the air filter case with the projection facing upward, and then install the washer and wing bolt. 6
1. Wing bolt 2. Washer 3. Sponge material
4. Remove the sponge material from the air filter element frame.
6. Apply oil of the recommended type to the entire surface of the sponge material, and then squeeze the excess oil out.

1. Sponge material 2. Projection
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ECA10480 EAU39930 EAU21370

Adjusting the carburetor

The carburetor is an important part of the engine and requires very sophisticated adjustment. Therefore, most carburetor adjustments should be left to a Yamaha dealer, who has the necessary professional knowledge and experience. The adjustment described in the following section, however, may be serviced by the owner as part of routine maintenance.

ECA10550

Make sure that the air filter element is properly seated in the air filter case. The engine should never be operated without the air filter element installed, otherwise the piston(s) and/or cylinder(s) may become excessively worn.
Adjusting the throttle cable free play
9. Install the air filter case cover in the original position as shown.
CAUTION: 6 The carburetor has been set and extensively tested at the Yamaha factory. Changing these settings without sufficient technical knowledge may result in poor performance of or damage to the engine.
1. Throttle cable free play
The throttle cable free play should measure 3.05.0 mm (0.120.20 in) at the throttle grip. Periodically check the throttle cable free play and, if necessary, adjust it as follows. NOTE: The engine idling speed must be correctly adjusted before checking and adjusting the throttle cable free play. 1. Loosen the locknut.

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.

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.

ECA10581

CAUTION: The drive chain must be lubricated after washing the motorcycle and riding in the rain.
1. 2. 3. 4. Axle nut Locknut Drive chain slack adjusting bolt Alignment marks

ECA10570

1. Remove all dirt and mud from the drive chain with a brush or cloth. NOTE: For a thorough cleaning, have a Yamaha dealer remove the drive chain and soak it in solvent. 2. Spray Yamaha Chain and Cable Lube or a high-quality spray-type drive chain lubricant on both sides and on the middle of the chain,
CAUTION: Improper drive chain slack will overload the engine as well as other vital parts of the motorcycle and can lead to chain slippage or breakage. To prevent this from occurring, keep the drive chain slack within the specified limits.
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making sure that all side plates and rollers have been sufficiently oiled.

EAU41840 EAU23111

Checking and lubricating the cables
The operation of all control cables and the condition of the cables should be checked before each ride, and the cables and cable ends should be lubricated if necessary. If a cable is damaged or does not move smoothly, have a Yamaha dealer check or replace it.

Recommended lubricant: Yamaha Chain and Cable Lube or engine oil SAE 10W-30 (API SE)

EWA10710

Checking and lubricating the throttle grip and cable
The operation of the throttle grip should be checked before each ride. In addition, the cable should be lubricated at the intervals specified in the periodic maintenance chart.
WARNING Damage to the outer housing of cables may result in internal rusting and cause interference with cable movement. Replace damaged cables as soon as possible to prevent unsafe conditions.
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EAU23131 EAU23140

Checking and lubricating the brake and shift pedals
Checking and lubricating the brake and clutch levers
Recommended lubricant: Lithium-soap-based grease (all-purpose grease)
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.

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.

ECA10810

Storing the motorcycle in a poorly ventilated room or covering it with a tarp, while it is still wet, will allow water and humidity to seep in and cause rust. To prevent corrosion, avoid damp cellars, stables (because of the presence of ammonia) and areas where strong chemicals are stored.
Long-term Before storing your motorcycle for several months: 1. Follow all the instructions in the Care section of this chapter. 2. For motorcycles equipped with a fuel cock that has an OFF position: Turn the fuel cock lever to OFF.
3. Drain the fuel tank and fuel lines, and the carburetor float chamber by loosening the drain bolt; this will prevent fuel deposits from building up. 4. Perform the following steps to protect the cylinder, piston rings, etc. from corrosion. a. Remove the spark plug cap and spark plug. b. Pour a teaspoonful of engine oil into the spark plug bore. c. Install the spark plug cap onto the spark plug, and then place the spark plug on the cylinder head so that the electrodes are grounded. (This will limit sparking during the next step.) d. Turn the engine over several times with the starter. (This will coat the cylinder wall with oil.) e. Remove the spark plug cap from the spark plug, and then install the spark plug and the spark plug cap.

EWA10950

WARNING To prevent damage or injury from sparking, make sure to ground the spark plug electrodes while turning the engine over. 5. Lubricate all control cables and the pivoting points of all levers and pedals. 6. Check and, if necessary, correct the tire air pressure, and then lift the motorcycle so that both of its wheels are off the ground. Alternatively, turn the wheels a little every month in order to prevent the tires from becoming degraded in one spot. 7. Cover the muffler outlet with a plastic bag to prevent moisture from entering it. NOTE: Make any necessary repairs before storing the motorcycle.

Tire air pressure (measured on cold tires):
Front: 100 kPa (15 psi) (1.00 kgf/cm) Rear: 100 kPa (15 psi) (1.00 kgf/cm)

Front tire:

Type: With tube 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)(ESP)(FIN)( FRA)(GBR)(GRC)(IRL)(NLD)(NOR)(PRT)( SWE) YZ85LW DUNLOP/D756F YZ85LWW DUNLOP/D756F YZ85W DUNLOP/D756F YZ85W1 DUNLOP/D756F

Front wheel:

Wheel type: Spoke wheel Rim size: YZ85 17x1.40 YZ85LW 19x1.40 YZ85LWW 19x1.40 YZ85W 17x1.40 YZ85W1 17x1.40

Rear wheel:

Wheel type: Spoke wheel Rim size: YZ85 14x1.60 YZ85LW 16x1.85 YZ85LWW 16x1.85 YZ85W 14x1.60 YZ85W1 14x1.60

Chassis:

Frame type: Semi double cradle

Rear tire:

Type: With tube 8-2

Front brake:

Type: Single disc brake Operation: Right hand operation Recommended fluid: DOT 4

Electrical system:

Ignition system: CDI

Rear brake:

Type: Single disc brake Operation: Right foot operation Recommended fluid: DOT 4

Front suspension:

Type: Telescopic fork Spring/shock absorber type: Coil spring/oil damper Wheel travel: 275.0 mm (10.83 in)

Rear suspension:

Type: Swingarm (link suspension) Spring/shock absorber type: Coil spring/gas-oil damper Wheel travel: YZ85 282.0 mm (11.10 in) YZ85LW 287.0 mm (11.30 in) YZ85LWW 287.0 mm (11.30 in) YZ85W 282.0 mm (11.10 in) YZ85W1 282.0 mm (11.10 in)

CONSUMER INFORMATION

EAU40790 EAU26400 EAU26460

Identification numbers

Record the vehicle identification number and model label information in the spaces provided below for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. VEHICLE IDENTIFICATION NUMBER:
Vehicle identification number

Model label

1. Vehicle identification number

1. Model label

MODEL LABEL INFORMATION:
The vehicle identification number is stamped into the steering head pipe. Record this number in the space provided. NOTE: The vehicle identification number is used to identify your motorcycle and may be used to register your motorcycle with the licensing authority in your area.
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