POLINI Vespa Carburettor Main Jet Kit (SI 20.15-17 A-D/20.20-26.26E/G/H) VESPA HELMET for APRILIA Sportcity One/SR Max/DERBI

for APRILIA Sportcity One/SR Max/DERBI Boulevard/GILERA DNA/Nexus/Runner Purejet/SP/VX/VXR/PIAGGIO Beverly/Fly/Hexagon GTX/Liberty/Skipper/X7/X8/XEvo 50-300

Runner 50 SP 2010-2017

081 (EBC)

Piaggio Engine Swinging Arm Spacer Shaft  Runner FX

Without carburettor

POLINI Vespa Carburettor Main Jet Kit (SI 20.15-17 A-D/20.20-26.26E/G/H) VESPA HELMET for APRILIA Sportcity One/SR Max/DERBIPOLINI 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