Table 5-3. Direct and General Support Maintenance Troubleshooting (Continued)
TEST OR INSPECTION
ENGINE OPERATES ERRATICALLY (Continued)
Figure 5-160. Governor Assembly
DO NOT force the bushing nut tight. This could cause binding or stripped threads.
When the engine speed is adjusted to the correct rpm, tighten the bushing nut and lock the
throttle bracket in place. Go to Step 7d.
Start the engine.
If the engine runs smoothly, the problem is solved.
If the engine still operates erratically, go to Step 8.
Check the carburetor.
BE CAREFUL not to use force when turning the needle valves in and out.
Force can damage the valves.
Remove the main fuel needle valve and idle fuel needle valve and check them for damage and/or
If the needle valves are ok, go to Step 8d.