TM 9-4520-260-13
5-3. CARBURETOR - CONTINUED
4. Remove solenoid valves (13 and 14) from carburetor
body (7) by unscrewing.
5. Remove fuel adjustment needle (15) from carburetor
body (7). Remove and discard preformed packing
(16).
6. Remove mixer (17) from fuel jet (18), unscrewing by
hand. Remove fuel jet (18) from carburetor body (7).
Remove and discard preformed packing (19) from
mixer (17) and gasket (20) from fuel jet (18).
bracket (23). Unscrew float bowl (5) and remove
orifice (24).
8. Unscrew overflow fitting (25) from float bowl (5).
CLEANING
Do not immerse the thermostat, solenoids, or float bowl in
solvent. Equipment damage could result.
Clean all metal parts in dry cleaning solvent (Item 6,
INSPECTION
1. Inspect tip of fuel adjustment needle (15) for wear,
scoring, or other damage. Replace if bent, damaged,
or worn.
2. Inspect mixer (17) for cracks, burrs, and thread
damage. Inspect fuel jet (18) for wear or damage.
Replace defective parts.
3. Inspect fuel solenoid (13) and choke solenoid
Figure 5-2. Repairing or Replacing Carburetor. (14)
for damage. Replace if defective.
Figure 5-2. Repairing or Replacing Carburetor.
TESTING
1. Test the preheat thermostat (9) for continuity. It opens at 110 (43 ), closes at 95 (35 ).
F
C
F
C
2. Test the fuel solenoid (13) and choke solenoid (14) for continuity between the two leads. Replace if coil is open.
5-8