Adjusting The Fuel Level - Yamaha YFM660RN Service Manual

CARBURETORS
3.Install:
Carburetor 1
Carburetor 2
Pipe
Hose joint
Spring
OTE:
Install the throttle valve lever 1 onto
carburetor 2 between the spring 2 and
synchronizing screw 3.
Make sure the throttle valves operate
smoothly and that the synchronization is
correct.

ADJUSTING THE FUEL LEVEL

1.Measure:
Fuel level a
Out of specification → Adjust.
Fuel level:
3 ~ 4 mm (0.12 ~ 0.16 in)
Below the float chamber mating
surface
***********************************************
Fuel level measurement and adjustment
steps:
Place the machine on a level surface.
Connect the fuel level gauge 1 to the drain
pipe 2.
Fuel level gauge:
P/N. YM-01312-A, 90890-01312
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.
7 - 8
CARB