Yamaha FZS1000N Service Manual page 311

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CHECKING THE CARBURETORS

The following procedure applies to all of the car-

S carburetor body

S float chamber

S jet housing

Cracks/damage ! Replace.

S fuel passages

Obstruction ! Clean.

a. Wash the carburetor in a petroleum-based

solvent. Do not use any caustic-carburetor-

cleaning solution.

b. Blow out all of the passages and jets with

compressed air.

S float chamber body 1

Dirt ! Clean.

S float chamber rubber gasket 2

Cracks/damage/wear ! Replace.

Damage ! Replace.

S needle valve 1

S needle valve seat 2

Damage/obstruction/wear ! Replace the

needle valve, needle valve seat and O-ring

Damage/wear ! Replace the needle valve,

needle valve seat and O-ring as a set.

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