CARBURETOR

ENG

10.Install:

Starter jet 1

Pilot jet 2

Spacer 3

Needle jet 4

Main jet 5

11.Install:

Needle valve 1

Float 2

Float pin 3

NOTE:

After installing the needle valve to the float, install them to the carburetor.

Check the float for smooth movement.

12.Install:

Pilot screw 1

Spring 2

Washer 3

O-ring 4

Note the following installation points:

Turn in the pilot screw until it is lightly seated.

Turn out the pilot screw by the number of turns recorded before removing.

Pilot screw:

2 turns out (example)

*1-7/8 turns out

*Except for USA

13.Install:

O-ring

Leak jet 1

Float chamber 2

Screw (float chamber) 3

Cable holder

(throttle stop screw cable) 4

Hose holder

(carburetor breather hose) 5

4 - 17

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Image 139
Yamaha WR250FM service manual Pilot screw Turns out example 8 turns out