Conquring Solex 34PICT3

As mentioned before, '71 VW Super Beetle has very special distributor with vacuum advancer, vacuum retarder and centrifugal governor mechanical advancer and they are affected each other in addition to the "Smog" Solex 34PICT3 Anti-Pollution lean setting carburetor.
The adjustment on this Smog is far complicated comparing with WEBER 40 DCOE side draft carburetors.

The experiment this morning revealed the fact that the opening the vacuum circuitry for retarding ignition timing originally but now closed for the sake of 009, easily causes motor stopping because of too lean mixture.
So the additional air supply intending to prolong the warming up interval is not enough but necessary to supply fuel together.

The expansion of the choke valve activation must be the first by applying series connected 1/4W rheostat in the automatic choke circuitry.

Additionally the retarding orifice on 34PICT3 carburetor may be utilized to know the mixture ratio precisely by closing and by opening with finger tip actions. This nipple goes to a small hole existing in the position between throttle butterfly and intake port.
Of course some keen sense is required to discern the condition if the mixture is rich or lean, in another words the motor wants which one now, air or fuel?