2008 YAMAHA YZ250F MANUAL PDF

View and Download YAMAHA YZF(Y) owner’s service manual online. Motorcycle YAMAHA YZF(W) Owner’s Service Manual YZF(Y) OWNER’S SERVICE MANUAL © by Yamaha Motor Co., Ltd. 1st Edition, May All. ha dealer. Yamaha continually seeks advance- ments in product design and quality. Therefore, while this manual contains the most current product information. Yamaha YZF(X) Service Repair Manual DOWNLOAD INSTANT DOWNLOAD Yamaha YZF(X) Service Repair Manual DOWNLOAD This is.

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Any reprinting or unauthorized use without the written permission of Yamaha Motor Co. Take care to a Yamaha YZ series.

This model is not spill any gasoline on the the culmination of Yamaha’s vast ex- engine or exhaust system. A number that is enclosed panies the exploded diagram, To help identify parts and clarify pro- by a circle indicates a disassem- providing the order of jobs, names cedure steps, there are exploded dia- bly step.

Fuel cock Hot starter lever Cold starter knob Front brake lever Drive chain Throttle grip Air filter Radiator cap Oil level check window Fuel tank cap Shift pedal Engine stop switch Remove all dirt, mud, dust, and 1. When ordering parts, you can foreign material before removal give the number to your Yamaha and disassembly. During the machine disassembly, clean all parts and place them in trays in the order of disassembly.

This will speed up assembly time and help assure that all parts are correctly reinstalled. Using the correct special tool will help prevent damage caused by the use of improper tools or improvised techniques. The shape and part number used for the special tool differ by country, so two types are provided. Radiator cap tester adapter YU, Steering nut wrench This tool is used when tighten the YU, steering ring nut to specification.

Valve spring compressor This tool is needed to remove and YM, install the valve assemblies. Clutch holding tool This tool is used to hold the clutch YM, when removing or installing the Continue push- ing the engine stop switch till the en- gine comes to a stop.

Before starting the engine, fill the fuel tank with the fuel. Perform the pre-operation checks on the machine. Start and warm up the engine. Check the idle speed, and check the operation of the controls and the engine stop switch.

Type Premium unleaded gasoline only with a research octane number of 95 or higher. Warp limit 0. Valve clearance cold 0. Free length IN First, tighten the steering ring nut approximately 38 Nm 3. Retighten the steering ring nut 7 Nm 0. Torque specifications 6 mm for special components or assem- blies are included in the applicable sections of this book. Hot starter cable Aligh the paint mark on the cylin- Radiator hose 1 Fuel hose der head breather hose with the Connector cover Carburetor overflow hose front end of the hose guide.

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Cylinder head breather hose Insert the end of the fuel tank Pass the cylinder head breather Pass the fuel hose between the hot starter cable and throttle po- sition sensor lead. Pass the carburetor breater hos- es so that they are not pinched between the upper engine bracket and carburetor. Radiator breather hose Fasten the throttle position sen- Radiator hose 2 Engine stop switch lead sor lead behind the hump of the Clamp Ignition coil lead CDI unit bracket Fasten the neutral switch lead Throttle position sensor lead Pass the radiator breather hose in front of the radiator, on the left of the chassis, and then be- tween the frame and radiator hose 4.

Ignition coil Fasten the throttle cables with Cylinder head breather hose the clamp so that the cables are Clamp not bent, and pass them under Rear arm bracket Install the brake hose so that its Install the brake hose so that its pipe portion directs as shown pipe portion directs as shown and lightly touches the projec- and lightly touches the projec Clutch cable Pass the brake hose in front of Engine stop switch lead the number plate.

Cable guide Pass the throttle cables through Brake hose the cable guide. Bear in mind that such factors as weather, terrain, geographical location, and individual usage will alter the required maintenance and lubrication intervals.

If you are a doubt as to what intervals to follow in maintaining and lubricating your machine, consult your Yamaha dealer. Before using this machine, check the following points. Thoroughly wash your eye with Do not remove the radiator cap water and see your doctor. Apply the specified pressure. Proper air filter maintenance is the biggest key to preventing premature engine wear and damage.

Install the new pads “3” and the valve lifters “4”. Connect the transparent hose “5” Install the pad pin plug “10”.

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Loosen the pad pin “3”. Remove the rear wheel “4” and Install the brake caliper “12” and brake caliper “5”. Turn the handlebar lock to lock.

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Check the steering stem by turn- ing it lock to lock. Clutch cable end All control cable Disconnect the fuel hose.

Seat Air scoop left and right Bolt fuel tank Fuel tank Left side cover Bolt silencer clamp Only loosening. Bolt [silencer front ] Bolt [silencer rear ] Collar Silencer Silencer clamp Yz205f guard Radiator hose clamp Only loosening.

Scalding hot fluid and steam may be blown out under pressure, which could cause serious injury. When the engine has cooled, open mahual. Float pin Float Needle valve Throttle shaft assembly Push rod link lever assembly Pilot air jet Cold starter plunger Blow out all passages and changing the throttle position sen- jets with compressed air. Recheck the float height.

Yamaha YZF – Owner’s Manual – Pages – PDF

Spark plug Cylinder head breather hose Bolt cylinder head cover Cylinder head cover Cylinder head cover gasket Timing chain guide top side Crankshaft end accessing screw Refer to removal section.

Timing chain tensioner cap bolt Refer to removal section. Timing chain tensioner Refer to removal section.

Camshaft cap Refer to removal section. Fit the mahual chain “3” onto both 5. While pressing the tensioner rod “2” Radiator hose 1 Disconnect at cylinder head side. Valve lifter Refer to removal section.

Adjusting pad Refer to removal section.

Valve cotter Refer to removal section. Install the new valve guide using a be reinstalled in their original place. Install the valve into the cylinder head.

2008 Yamaha YZ250F — Owner’s Manual

Turn the valve until the valve face a. Onto the valve stem and valve stem seal. Bolt cylinder Cylinder Piston pin clip Refer to removal section.

Piston pin Refer to removal section. Piston Refer to removal section. Oil ring end lower 3. Clutch cable Disconnect at engine side. Clutch cover Clutch spring Pressure plate Push rod Lock washer Refer to removal section.

Clutch boss Refer to removal section. Thrust washer Primary driven gear Push lever shaft Impeller shaft Refer to removal section. Oil seal Refer to removal section. Manuwl Refer to removal section.

Nut primary drive gear Refer to removal section. Straighten the lock washer tab.