Yamaha WR45OFR Needle valve, Throttle valve, Jet needle, Standard clip position No.4 Groove

CARBURETOR

ENG

Needle valve

1.Inspect:

●Needle valve 1

●Valve seat 2

Grooved wear a → Replace. Dust b → Clean.

EC464300

Throttle valve

1.Check:

●Free movement

Stick → Repair or replace.

Insert the throttle valve 1 into the car- buretor body, and check for free move- ment.

EC464400

Jet needle

1.Inspect:

●Jet needle 1 Bends/wear → Replace.

●Clip groove

Free play exists/wear → Replace.

●Clip position

Standard clip position:

No.4 Groove

EC464511

Float height

1.Measure:

●Float height a

Out of specification → Adjust.

Float height:

8.0 mm (0.31 in)

4 - 12