to mess. no: 453
The behaviouring of your gasifier is commonplace, even if a bit more severe, because of the small silo mass.
I use a very tight backflap, and have no "smoking the street" problem anymore.
Let's go barking under "the mixer tree"!
From the gathered information, it seems to be clear that the throttle flaps, especially the gas-one, cannot handle the variation between succing and pushing!
With tight flaps the vacuum can be maintained high and the mixing ratio keeps 50/50 whatever the gasifier's game (play) is !
This story will not change, if you don't take the right steps.
I have a double manteled silo, Imbert style, and the gasifier pushes after every drive at every stand still, but not so severely...Idle is maintained.
Feuel: Ideal = egg size, but it handles also 1,5 cigarett pack sizes. (1 1/2)