Here is a link to a good starting point for jetting different setups
Stamping on jet poorly done even under magnifying glass
you got a pipe? then you need the jets... Matt and Factoryminibikes has them. What are you waiting for?
Main jet change
I installed the main jet to what size you guys recommend after installing the yoshimira pipe and it didn’t seem to help at all it runs fine and just has no power so not sure what else I need to do to get the power back it’s sucks when you spend over $400 on a pipe just to make ur bike sound good and run worse then it did with the stock pipe So as far as being the correct part it would be a 5 star but I’m giving it a 1 star because it didn’t help the bike at all and I have to say no to recommending to others because it didn’t help out any
Fits as it should! And always the fastest shipping
Works and Fits Well