Yamaha Wr 450 F Owners Manual
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3 - 56 INSP ADJ FUSE INSPECTION 6. Install: Battery Battery band 7. Connect: Battery leads (to the battery terminals) CAUTION: First, connect the positive lead 1, then the negative lead 2. 8. Check: Battery terminals Dirt → Clean with a wire brush. Loose connection → Connect properly. 9. Lubricate: Battery terminal 10. Install: Seat EAS00181 FUSE INSPECTION CAUTION: To avoid a short circuit, always set the main switch to “OFF” when checking or replacing a fuse. 1. Remove: Seat Fuse cover 2....
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3 - 57 INSP ADJ REPLACING THE HEADLIGHT BULBS 3. Replace: Blown fuse WARNING Never use a fuse with an amperage rating other than that specified. Improvising or using a fuse with the wrong amperage rat- ing may cause extensive damage to the electrical system, cause the starting and ignition systems to malfunction and could possibly cause a fire. 4. Install: Fuse cover Seat Replacement steps: Set the main switch to “OFF”. Install a new fuse of the correct amperage. Set on the switches to verify...
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3 - 58 INSP ADJ ADJUSTING THE HEADLIGHT BEAMS 5. Install: Headlight bulb Secure the new headlight bulb with the headlight bulb holder. CAUTION: Avoid touching the glass part of the head- light bulb to keep it free form oil, otherwise the transparency of the glass, the life of the bulb and the luminous flux will be adversely affected. If the headlight bulb gets soiled, thoroughly clean it with a cloth moistened with alcohol or lacquer thinner. 6. Attach: Headlight bulb holder 7. Install: Headlight...
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4 - 1 ENG EC400000 ENGINE EC4R0000 SEAT, FUEL TANK AND SIDE COVERS Extent of removal: 1 Seat removal 2 Fuel tank removal 3 Side covers removal 4 Headlight removal Extent of removal Order Part name Q’ty Remarks Preparation for removal SEAT, FUEL TANK AND SIDE COVERS REMOVAL Turn the fuel cock to “OFF”. Disconnect the fuel hose. 1 Seat 1 2 Air scoop (left and right) 2 3 Fitting band 1 Remove on fuel tank side. 4 Bolt (fuel tank) 2 5 Fuel tank 1 6 Side cover (left) 1 Refer...
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4 - 2 ENG REMOVAL POINTS Side cover 1. Remove: Bolt (side cover) Side cover (left) 1 Side cover (right) 2 NOTE: Draw the side cover downward to remove it because its claws a are inserted in the air fil- ter case. SEAT, FUEL TANK AND SIDE COVERS 4
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4 - 3 ENG EXHAUST PIPE AND SILENCER EC4S0000 EXHAUST PIPE AND SILENCER Å For USA ı Except for USA Extent of removal: 1 Silencer removal 2 Exhaust pipe removal Extent of removal Order Part name Q’ty Remarks EXHAUST PIPE AND SILENCER REMOVAL Preparation for removal Side cover (right) Refer to “SEAT, FUEL TANK AND SIDE COVERS” section. 1 Bolt (clamp) 1 Only loosening. 2 Bolt [silencer (front)] 1 3 Bolt [silencer (rear)] 1 4 Silencer 1 5 Clamp 1 6 Nut (exhaust pipe) 1 7 Bolt...
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4 - 4 ENG EXHAUST PIPE AND SILENCER INSPECTION Exhaust pipe and silencer 1. Inspect: Gasket 1 Damage → Replace. 1 ASSEMBLY AND INSTALLATION Exhaust pipe and silencer 1. Install: Gasket Exhaust pipe 1 Nut (exhaust pipe) 2 Bolt (exhaust pipe) 3 NOTE: First, temporarily tighten the nut (exhaust pipe), then tighten the bolt (exhaust pipe) 20 Nm (2.0 m • kg, 14 ft • lb). After that, retighten the nut (exhaust pipe) 13 Nm (1.3 m • kg, 9.4 ft...
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4 - 5 ENG RADIATOR EC450001 RADIATOR Extent of removal: 1 Radiator removal 2 Coolant reservoir removal Extent of removal Order Part name Q’ty Remarks RADIATOR REMOVAL Preparation for removal Drain the coolant. Refer to “COOLANT REPLACEMENT” section in the CHAPTER 3. Seat, fuel tank and side cover Refer to “SEAT, FUEL TANK AND SIDE COVERS” section. Exhaust pipe Refer to “EXHAUST PIPE AND SILENCER” section. 1 Engine guard 1 2 Panel 2 3 Clamp 8 4 Radiator (right) 1 5 Hose 2 1 6 Hose 3 1 7...
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4 - 6 ENG RADIATOR EC456000 HANDLING NOTE WARNING Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be blown out under pressure, which could cause serious injury. When the engine has cooled, open the radi- ator cap by the following procedure: Place a thick rag, like a towel, over the radi- ator cap, slowly rotate the cap counter- clockwise to the detent. This procedure allows any residual pressure to escape. When the hissing sound has stopped,...
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4 - 7 ENGRADIATOR 3. Install: Radiator breather hose 1 Radiator (right) 2 Refer to “CABLE ROUTING DIA- GRAM” section in the CHAPTER 2. T R..10 Nm (1.0 m · kg, 7.2 ft · lb) 4. Install: Panel 1 Bolt (radiator panel upper) 2 NOTE: Fit the hook a on the inner side first into the radiator. T R..10 Nm (1.0 m · kg, 7.2 ft · lb)