"Venturi Tubes
Together with the jet needle, the venturi tube is responsible for partial load adjustment. If the adjustment is too fat (motor stutters and throttles) and the jet needle already is in the lowest slot, then it‘s time for a small venturi tube.
The rule here is: the lower the number, the fatter the venturi rube.
In the partial load range with a barely opened gas slide valve your motor should purr not stutter. If it doesn‘t get hiccups when gas is turned up, then you‘ve got it right."
Che vuol dire?
Be1, che ho trovato, me lo presta Marsilio, sarà più magro o più grasso rispetto al Be3? Basterà ridurre il getto min per smagrire ai medi?
Mamma mia...