8. CARBURETOR
8 - 1 OPERATION and CONSTRUCTION (See figs . 49 and 50 . )
8- 1- 1 FLOAT SYSTEM
The float chamber is located just below the carburetor body and, with a float andneedle valve, maintains a constant fuel level during engine operation.
The fueI flows from the fuel tank into the float chamber through needlevalve. When the fuel rises t o a speci- fic level, the float rises; and when its buoyancy and fuel pressure are balanced, the needle valve closes to shut off the fuel, thereby keeping the fuel at the referencelevel.
PilotValveChoke | Jet | |
Throttle Valve |
|
|
Pilot Outlet |
| MainNozzle |
|
| |
|
| - |
|
| Main Air Jet |
|
| Float |
Bowl | Fuel | \ Main Jet |
Fig. 49
Fig 50
- 33 -
