Attention! Adjustment of the operation of the mechanism for blocking the second chamber is carried out on the removed carburetor.
1. Turn the choke lever counterclockwise until it stops. The air damper must close completely.
2. Rotate the throttle control lever until the throttle valve of the first chamber is fully open. The throttle valve of the second chamber must be completely closed.
3. Turn the choke lever clockwise until it stops. The air damper should open completely.
4. Turn the throttle actuator lever until the throttle valves of the first and second chambers are fully open.
5. If the second chamber throttle does not open, repair the problem. It is most commonly caused by a stuck second chamber lock lever or a loose lock lever spring.