Yamaha 5KM2-AE1, Service Manual

Page: 269 / 431

6 - 7
CARB
CARBURETOR
●
If either is worn, replace them both.
●
If both are fine, adjust the float height by
bending the float tang
1
on the float.
●
Recheck the float height.
*****************************************************
ADJUSTING THE FUEL LEVEL
1.Measure:
●
Fuel level
a
Out of specification
→
Adjust.
*****************************************************
Measurement and adjustment steps:
●
Place the machine on a level surface.
●
Connect the fuel level gauge
1
to the drain
pipe
2
.
●
Loosen the drain screw
3
.
●
Hold the gauge vertically next to the float
chamber line.
●
Measure the fuel level
a
with the gauge.
●
If the fuel level is incorrect, adjust the fuel
level.
●
Remove the carburetor.
●
Inspect the valve seat and needle valve.
●
If either is worn, replace them both.
●
If both are fine, adjust the float level by bend-
ing the float tang
4
slightly.
●
Install the carburetor.
●
Recheck the fuel level.
*****************************************************
Fuel level:
4.5 mm (0.18 in)
Above the float chamber mating
surface
Fuel level gauge:
P/N. YM-01312-A, 90890-01312