Yamaha VK540EF, Service Manual, Page: 308 / 439

6-4
CARBURETOR
CARB
NOTE:
NOTE:
6. Check:
S
Throttle valve movement
Stick
Replace carburetor body.
ESS00202
ASSEMBLY
S
Before reassembling, wash all parts in clean
gasoline.
S
Always use new gaskets and O-rings.
1. Tighten:
S
Inner parts
Main nozzle:
3 Nm (0.3 m
S
kg, 2.2 ft
S
lb)
Valve seat:
5 Nm (0.5 m
S
kg, 3.6 ft
S
lb)
Main jet:
2 Nm (0.2 m
S
kg, 1.4 ft
S
lb)
Pilot jet:
0.8 Nm (0.08 m
S
kg, 0.58 ft
S
lb)
Starter plunger cap:
3.5 Nm (0.35 m
S
kg, 2.53 ft
S
lb)
2. Measure:
S
Float height
a
Out of specification Adjust.
Float height
a
:
12 16 mm (0.47 0.63 in)
Measurement and adjustment steps:
S
Hold the carburetor upside down.
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Incline the carburetor at 60 70
_
(so that the
end of the float valve does not hang down as a
result of float weight).
S
Measure the distance between the carburetor
body and top of the floats.
The float arm should resting on the needle valve
without exerting pressure on it.