Keihin Idle Jet For 2005-2010 Vespa and Piaggio 50-200cc
Changing this little jet to the #38 makes a big difference on the carburetor 2006-2010 LX 150-LXV-Vespa S in off the line POWER. This is the best little performance thing you can do and it only cost a few dollars and a few minutes of time to install it. You will also need the carb D tool if you plan to adjust the air fuel mixture. For USA scooter models only. Check with your local laws before attempting any kind of performance modifications.
All 4T 50cc use the #35 Jet