The 17.5mm carburettor is equipped with a manual choke.<br> The 17.5mm carb will increase the performance of your 50cc scooter or motorcycle easily. This will increase your acceleration and also your top speed. To complete your engine configuration and easily gain power, we recommend that you install the Big Valve reed valve, as well as a "Racing" exhaust pipe and variator.<br> new High quality.<br> Therefore it is adaptable to all 50cc scooters or motorcycles equipped with a pull cord starter such as for Yamaha Jog-R, for Aerox, for Bw's, for MBK Booster, for Nitro, for Stunt, for Mach-G, for AM6, for Derbi, for TZR, for XP6, for Rieju , for Beta... and, in general, to all vertical and horizontal type for Minarelli engines.<br> Name:Carburetor<br> Type:Motorcycle Carburetor<br> Item: PHBN-17.5mm PHVA17 Style 2-Stroke Carburetor<br> Fit: for Yamaha Jog-R Aerox Bw's MBK Booster Nitro Stunt Mach-G AM6 Derbi Minarelli<br> Colour:As Shown<br> Material:plastic+metal<br> Package Contents:<br> 1 x Carburetor<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.