Keihin II carburetor adjustment
The expense of the accelerating pump:
A measuring cylinder is required to measure the flow rate (measuring cup) and funnel.
■ Remove the carburetor.
■ Remove the carburetor cover.
■ Fill the float chamber with fuel.
■ Reinstall the cover.
■ Tighten the lever (1, lynx. 2.174) to the piston (2); there must be no play between the lever and the piston.
■ Close the passage throttle (by removing the throttle adjustment screw).
WHILE CHECKING THE ACCELERATOR PUMP EXPENSE PUSH THE LEVER (1) TO PISTON (2).
■ Place a measuring cylinder with a funnel under the carburetor.
■ Open the choke throttle fully.
■ Turn 10 times with the cruise control throttle; one revolution should last at least 3 seconds.
■ Determine the fuel volume in the measuring vessel. Calculate the fuel dose for one throttle revolution. The volume of one dose should be 0,85 cm3 per revolution. Permissible deviation in volume 0,12 cm3 per revolution.
■ Check the idling speed and the CO concentration in the exhaust gas.
Basic setting of the 2nd flight throttle:
The basic setting of the 2nd passage throttle is factory set with a screw and does not need to be changed.