Float Level Adjustment

Float level is determined by washer under needle valve. Correct Level should be obtained by using a washer with a thickness of 0.12 in. (3 mm). To check level, proceed as follows:

1. Allow engine to idle, switch off ignition. DO NOT TOUCH ACCELERATOR OR THROTTLE LINKAGE. 
2. Remove fuel line to prevent flooding and remove air filter. Remove screws, remove float chamber. Use care not to spill any fuel.
3. Measure the distance from upper edge of chamber to fuel level. This distance should be 1" (25.5 mm) with float in place and 1.18 in. (30 mm) without float.
4. To lower fuel level, fit additional gaskets under float valve. To raise fuel level, file down existing gasket.
5. After adjustments are completed, re-check float level as outlined above.

Fig 1: Float Chamber & Emulsion Block

Courtesy of SAAB-SCANIA OF AMERICA, INC.