Yamaha BWS CW50L Service Manual download pdf (Page 60)

I [ ] FUELCOCK/ CARB I

FUELCOCK/ CARB D-15

REEDVALVE REEDVALVE

FUELCOCK iNSPECTiON

1. Check:

INSPECTION •Carburetorjoint

1. Stop the engine, Damage/Cracks _ Replace.

• Reed valve

2. Remove: Wear/Cracks/Damage-._ Replace.

Refer to "COVERS" in CHAPTER 3. Reed valve inspection steps:

Visually inspect the reed valve.

NOTE:

3. Check: A reed valve in good condition should be corn-

• Fuel cock pletely orat least nearly flush with the valve seat.

Fuel cock inspection steps: If in doubt, apply suction to the carburetor

• Disconnect the fuel hose (_. side of the assembly.

Place a receptacle under the fuel hose end. Leakage should be minimal to moderate.

If fuel stops flowing within a few seconds, the ......................... *******************....... ***

fuel cock is in good condition. If not clean or

replace the fuel cock.

Disconnect the vacuum hose and breathe in

__ _r'_ \ _"_r--':'_ through the hose to create a vacuum in the I 2. Measure:

• Valve stopper height C)

fuel cock. _ Out of specification _ Replace valve stop-

. If fuel flows out of the fuel hose when vacuum

is applied and stops flowing when vacuum _ per.

stops, the fuel cock is in good condition. " _/'_ I

• If not, clean or replace the vacuum hose, the rJ L} F_"_I valve stopper height:

fuel hose and the fuel cock. _ 4.0 - 4.4 mm (0.157 - 0.173 in)

322_3

REED VALVE 3. Measure:

• Reed valve clearance (_)

REMOVAL Out of specification --* Replace reed valve.

• emove

• Side covers Reed valve clearance:

Refer to "COVERS" in CHAPTER 3. (.j Less than 0.2 mm (0.008 in)

2.Remove:

• Carburetor

Refer to section "CARBURETOR REMOVAL". 3_o2,

_(_: ___) 3. Remove:

• Carburetor joint

• Reed valve assembly

3_Z20"22

5-7 5-8

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Yamaha BWS CW50L Service Manual Page 60

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