The emulsion tube is a clever and important part of the flatside carburettors as it holds a charge of fuel for a quicker throttle response, and thus helps lessen the chances of seizing when throttling down after a long, open throttle run.
 
It screws into the carburettor body under the pilot/idle jet.  This replaces the emulsion jet fitted and is a 'straight through' jet, with no numbers, but still holds the charge of fuel.
 
Suitable for any Lambretta or Vespa fitted with a VHSH or VHSB flat slide carb.
 
Please choose one of the following from the drop-down menu:
B40, B42, B45, B48, B50, B52, B54, B55, B58, B60
 
We also do a straight through mixer tube called a CD1, these are available here: