RD Vespa Carburettor Air Correction Jet (SI 20.15-17 A-D/20.20-26.26E/G/H)
The Air correction jet determines the pre-mix ratio of the fuel and air flowing through the jet stack. It generally effects the lower and mid range rev range working coherently with the throttle slide opening. If the capacity of the scooter is changed, we would recommend changing the size of the jet accordingly.
We have a fantastic variation of jets available for the Vespa SI Carburettors.
Comparison No. 05827140 01 (PIAGGIO)