Section 06
FUEL SYSTEM
Sub-Section 03
(CARBURETORS)
06-03-5
TYPICAL
1. Pump gauge tester
2. Install on pulse nipple
Diaphragm must stand pressure for 10 seconds.
If pressure drops, replace diaphragm.
4, Pump Body
Inspect valves. The pumping area should be free
of holes, tears or imperfections. Replace as needed.
5, Filter
To verify filter condition proceed as followsþ:
Remove pump cover, gasket, diaphragm and then
pump body and gasket.
Remove filter from carburetor body then clean fil-
ter and blow carefully with compressed air (low
pressure).
Replace filter if damaged.
TYPICAL
1. Filter
CARBURETOR ASSEMBLY
When assembling pump, ensure to properly posi-
tion components together. Refer to previous illus-
trations if necessary.
6,7, Choke Plate and Throttle Plate
When installing plate onto shaft, close plate so
that it centers into carburetor bore. Firmly tighten
screws.
CAUTION : Always apply Loctite 242
(blue) on screw threads prior to installing
screws.
8, Needle Valve Lever
Rounded end of needle valve lever must be flush
with surrounding metering chamber floor and not
with body assembly. Place the end of a ruler over
lever to check adjustment.
1. Metering chamber floor
2. Lever end
3. Flush
To adjust, bend lever very slightly to change its
height.
CAUTION : When adjusting lever, do not
pry it so that it applies pressure on needle.
This could damage valve seat / needle.
F01F0XA
1
2
F01F0YA
1
-
1
F01F0ZA
3
2
-
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