TM 10-4320-309-14
TM 4320-14/1
Table 3-4. Unit Troubleshooting — Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. STARTING HANDLE PULLS BUT ENGINE FAILS TO START
Step 1.
Check for insufficient fuel supply.
Fill fuel tank, if necessary.
Step 2.
Check fuel cock.
Open fuel cock, if closed. [Refer to para 2-9(2).]
Step 3.
Check position of speed control lever.
Move to START position. [Refer to para 2-9(3).]
Step 4. Check for air binding in fuel pipe to injection nozzle.
Remove inlet air sound enclosure assembly by removing the 17 screws.
Remove fuel injection pipe from fuel injection nozzle.
Push decompression lever down. Hold pipe in same hand as decompression le-
ver.
Pull the recoil starter several times with no compression until fuel is ejected from
pipe.
Reconnect injection pipe to injection nozzle.
Reinstall the inlet air sound enclosure assembly with the 17 screws.
Step 5. Check the starting procedure under prevailing conditions. (Refer to Chapter 2, Section IV.)
If the starting procedures have been performed correctly but engine still fails to
start, notify Direct Support Maintenance.
3. UNEXPECTED REVERSE ROTATION AT STARTUP
Step 1.
Too much lube oil. Verify that lube oil level is correct. (Refer to para 3–3.)
Stop engine at once using speed control lever knob or decompression lever.
Step 2.
Slow recoil pull may cause reverse engine rotation.
Review starting procedures under prevailing conditions. Pull faster.
If starting procedure has been performed correctly but engine rotation is reversed,
notify Unit Maintenance.
4. UNEVEN RUNNING OR FREQUENT STALLING
Step 1.
Check fuel cock.
Fully open the fuel cock, if closed. [Refer to para 2-9(2).]
Step 2. Check for insufficient fuel supply.
Fill fuel tank, if necessary.
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