Contents: Adjusting the idle speed ↳ Adjusting the minimum portion ↳ Adjusting the high idle speed ↳
Adjusting the idle speed
Measure the idle speed and if it is not within 840-870 rpm, adjust it to 850 rpm using the bolt (2. Fig. 2E.9).
Place a 0.5 mm thick plate between the acceleration lever on the fuel pump and the minimum portion adjustment bolt (3. Fig. 2E.9). The number of revolutions should not change. If it does, then the position of the minimum portion adjustment bolt should be changed.
If the number of revolutions has not changed, then replace the 0.5 mm thick plate with a 1.0 mm thick plate. The number of revolutions should increase. If there is no increase, the position of the minimum portion adjustment bolt should be changed.
Adjusting the minimum portion
Loosen the high idle servo cable clamp and clamp it onto the end of the cable so that the servo cannot function.
Place a 0.5 mm thick plate between the acceleration lever on the fuel pump and the minimum portion adjustment bolt (3. Fig. 2E.9). Loosen the bolt (3) one turn and adjust the idle speed to 850 rpm with the bolt (2. Fig. 2E.9). Repeat the last operations until turning the minimum portion adjustment bolt no longer affects the idle speed.
Replace the 0.5mm plate with a 1.0mm plate and set the minimum portion adjustment bolt so that the speed is 860-870 rpm.
Remove the 1mm thick plate and record the engine idle speed.
Reinstall the 0.5mm thick plate. The idle speed should not change.
Adjust the position of the fast idle cable clamp so that there is a gap of 1 mm between the clamp and the lever (when the engine is warm).
Adjusting the high idle speed
Move the high speed lever until it stops against the bolt (1. Fig. 2E.9). The speed should increase to 1180-1200 rpm. If this condition is not met, adjust the speed by changing the position of the bolt (1) accordingly.