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CARB

REED VALVE

6-8

REED VALVE

REMOVING THE REED VALVE

1. Remove:

• helmet box

Refer to “REAR BODYWORK, MUD-

GUARD” in chapter 3.

• air filter box assembly 

2. Remove:

• carburetor

See section “REMOVING THE CARBURE-

TOR”

3. Remove:

• carburetor joint 

• reed valve assembly

CHECKING THE REED VALVE

1. Inspect:

• carburetor joint

Damage/Cracks



Change

• reed valve

Fatigue/Cracks



Change

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Inspection steps:

• Visually inspect the reed valve.

• If there is any doubt on how to seal, apply

suction on the carburettor side.

• Leaks should be light or moderate.

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Yamaha CS50 User Manual

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