Warm up the engine to operating temperature. The oil temperature must be at least +80°C.
Turn off electrical consumers.
Leave the engine running at idle, lock the car with a hand brake.
Idle speed
Check idle speed. It should be 800±50 rpm.
If the idle speed differs from the specified value, give the lock nut and adjust the speed by turning the adjusting screw. Lock the screw after adjustment.
Max RPM
Push the adjusting lever by hand in the direction of the maximum speed adjusting screw. Check the number of revolutions. It should be 5100±50 rpm.
If the maximum speed differs from the specified value, give the locknut and adjust the speed by turning the adjusting screw. Lock the screw after adjustment.
Attention: Do not give full throttle for more than 5 seconds! If the specified speed is not reached, then contact a TOYOTA specialist workshop or BOSCH service points.