Idling and residual flow adjustment
Install a 4mm thick plate between the bolt (3. fig. 2E.10) residual flow adjustment (preventing engine shutdown) and lever (2) accelerator (fuel dosage).
Install a 20mm thick plate between the lever (5) idle and restrictive bolt. Set the position of the residual flow adjustment limit bolt so that the engine speed is 900±100 rpm. Remove the 20 mm thick plate. The idle lever should return to contact with the adjustment bolt. Remove the 4 mm thick plate.
Set the position of the idle speed adjustment bolt as follows. so that the engine speed is 840-870 rpm. Check the behavior of the engine when the accelerator pedal is suddenly released. If the downtime is too long or too short and the engine stops, the adjustment must be repeated. If the engine still stops, then tighten the residual flow adjustment bolt 1/4 turn if the engine speed is reduced too slowly, or unscrew 1/4 turn if the engine speed is reduced too quickly.
Attention. Do not tighten or loosen this bolt more than 1/4 turn.
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