POLINI Vespa Carburettor Main Jet Kit (SI 20.15-17 A-D/20.20-26.26E/G/H) BAGS & CASES PRIMAVERA-SPRINT The cap is held in

The cap is held in place in 3 points

well machined

allowing no room to incorporate a starter motor pinion

49474800 (SIP)

227174 (PIAGGIO)

POLINI Vespa Carburettor Main Jet Kit (SI 20.15-17 A-D/20.20-26.26E/G/H) BAGS & CASES PRIMAVERA-SPRINT The cap is held inPOLINI Vespa Carburettor Main Jet Kit (SI 20. 15 17 A D 20. 20 26. 26E G H) The main jet is found at the bottom of the jet stack on the SI Carburettor. The main jet is responsible for regulating the amount of fuel available for premixing. From changing the exhaust to changing the cylinder it is necessary changing the main jet to suit the scooter. The Polini Main jets are precisely made and can be used for a variety of different SI Carburettors. Comes