Section XVI
FUEL SYSTEM
| Paragraph | |
|---|---|
| General | [67] |
| Carburetor adjustment | [68] |
| Throttle control wire adjustment | [69] |
| Carburetor removal | [70] |
| Carburetor installation | [71] |
| Fuel strainer | [72] |
| Carburetor bowl cleaning | [73] |
| Fuel pipe | [74] |
67. GENERAL.
a. Carburetor is of the side‐outlet, plain‐tube type with a fixed venturi. Fuel feed is by gravity from tank above. Carburetor has two manual controls: the throttle, which is operated by the right handle bar grip, and the choke, which is operated by a lever on the carburetor itself. The high speed fuel supply is governed by a fixed (non‐adjustable) jet. The idling to medium speed (30 mph) fuel supply is governed by an adjustable (low speed) needle valve located on rear side of carburetor body.
68. CARBURETOR ADJUSTMENT ([fig. 43]).
a. Before attempting to adjust carburetor to correct faulty engine performance, attention should be given other items which have a direct bearing on and can affect carburetor adjustment as well as engine performance.
(1) Inspect fuel tank cap and make sure air vent is not plugged.
(2) See that throttle control adjustment is correct (par. [69]).