Adjusting butterfly valve opening control

ADJUSTING BUTTERFLY VALVE OPENING CONTROL

The butterfly valve opening linkage must be adjusted properly for the Monomotronic injection system to work properly.

Check that block (3) is fully home with link (1) disconnected from lever (2). Under these conditions the accelerator control cable should never be taut or excessively slack so that accelerator pedal free travel is taken up. If pedal shows free travel, adjust accelerator control cable nut and lock-nut.

Connect link (1) to head of lever (2) and warm up engine.

With accelerator pedal released (butterfly valve closed) check clearance between levers (2) and (4) is 0.2 - 0.5 mm.

If the above clearance is not as specified, loosen nuts (5) and (6) and tighten/loosen gauge (7) on link (1).

After adjustment, check that butterfly valve is fully open with accelerator pedal pressed fully down.