Weather, location, and modifications to your bike can affect your jetting and this aftermarket main jet kit is a great item to have in your toolbox to help resolve lean or rich jetting issues with your carb.  It includes the following LARGER sizes: # 195, 200, 205, 210, 220, 230, & 240.  These jets are for the following Mikuni performance carbs:

• Mikuni VM20 – 273
• Mikuni VM24 – 512
• Mikuni VM26 – 606
• Mikuni VM28 – 418

NOTE: If you don’t have one of the genuine Mikuni carbs listed above, please do not buy this jet kit as there are no returns or exchanges on jets.  These jets only work on genuine Mikuni carbs (they will not work on all the Chinese copies out there and none of the Chinese pitbikes come with a genuine Mikuni carb).