5-4
CARB
CARBURETORS
EAS00486
CHECKING THE CARBURETORS
The following procedure applies to all of the car-
buretors.
1. Check:
carburetor body
float chamber
jet housing
Cracks/damage Replace.
2. Check:
fuel passages
Obstruction Clean.
a. Wash the carburetor in a petroleum-based
solvent. Do not use any caustic-carburetor-
cleaning solution.
b. Blow out all of the passages and jets with
compressed air.
3. Check:
float chamber body
Dirt Clean.
4. Check:
float chamber rubber gasket
Cracks/damage/wear Replace.
5. Check:
float
Damage Replace.
6. Check:
needle valve 1
needle valve seat 2
Damage/obstruction/wear Replace the
needle valve, needle valve seat and O-ring
as a set.
7. Check:
O-ring 3
Damage/wear Replace the needle valve,
needle valve seat and O-ring as a set.
8. Check:
piston valve
Damage/scratches/wear Replace.
rubber diaphragm
Cracks/tears Replace.
9. Check:
vacuum chamber cover
piston valve spring
jet needle holder
Cracks/damage Replace.