TM 5-4310-376-14
Table 4-2. Organizational Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
(a) Remove and inspect needle valve (1) on carburetor.
Replace if defective.
(b) Remove and inspect idle valve (2) on carburetor.
Replace if defective.
Excessive force may damage needle or idle valves.
Screw in needle valve and idle valve until they just seat. Back off
needle valve 1-1/2 turns. Back off idle valve 3/4 turn. Make final
adjustment when engine is running.
(d) Rotate throttle (3) counterclockwise and hold against stop; inspect speed
adjusting screw.
Replace if defective.
(d) Fuel inlet valve (4) stuck open.
Replace carburetor (para 4-28).
4-18
