Yamaha WaveRunner GP1200R Manuel D'entretien page 140

FUEL
CARBURETOR
SERVICE POINTS
CAUTION:
Do not use steel wire for cleaning the jets.
This may enlarge the jet diameters and
seriously affect performance.
Diaphragm inspection
1. Inspect:
Diaphragm
Damage → Replace.
Accelerator pump body inspection
1. Inspect:
One way valve
Crack/damage → Replace the acceler-
ator pump body.
Fuel passage
Clog → Clean or replace.
Arm inspection
1. Inspect:
Arm 1
Bends/damage → Repair or replace.
2. Measure:
Arm height a
Arm height:
0 ~ 0.2 mm (0 ~ 0.008 in)
NOTE:
Measure the distance between the surface
of the carburetor body b and the top sur-
face of the arm.
The arm should be resting on the needle
valve, but not compressing it.
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