Before the beginning: remove the air filter.
Fully open damper.
1. Loosen the bolt that secures the linkage to the choke lever.
2. Rotate the choke lever so that it is fully open.
3. Fully sink the choke control on the instrument panel.
4. Pull the link completely out of the shell and tighten the bolt securing the link to the choke lever.
5. Pull out the choke control knob as far as it will go. In this case, the air damper should close completely. If this doesn't happen...
6.... turn away a bolt of fastening of a cover of draft.
7. By moving the shell, achieve complete closing of the throttle valve. After that, tighten the shell fixing bolt.