Note: Before you begin, see. Chapter 2.
Examination
1. When performing this test, it is necessary to supply fuel to the float chamber from a small reservoir.
2. Place the primary chamber over the measuring cup. Fully open and close the throttle valve ten times, opening it for one second and pausing for three seconds after each return stroke. Check that the fast idle cam does not restrict the throttle valve travel on either side.
3. Measure the amount of fuel pumped and compare it with the value determined in Specifications size.
4. If adjustment is necessary, loosen the screw and turn the cam plate in the desired direction. Tighten the screw and recheck the pump performance (see illustration).
Removal
5. Proceed as described in Chapter 17, points 1 and 2.
6. Thoroughly clean the outside of the accelerator pump housing.
7. Unscrew the four mounting screws, remove the accelerator pump cover. Remove the diaphragm, spring, spring seat and valve. Note the orientation of the spring seat.
Installation
8. Clean the mating surfaces of the cover and housing.
9. Check the condition of the valve, replace if necessary.
10. Position the valve, spring seat and spring in the housing. Note that the seat can only be installed in one position. The larger diameter of the spring should face the seat.
11. Position the diaphragm on the housing, check that the spring is correctly positioned, and install the cover. Tighten the cover mounting screws evenly to avoid distortion of the diaphragm (see illustration).
12. Further installation is carried out in the reverse order.
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