What size jets

[dascro]

I am running a K&N, and airbox lid removed on my 300 ex and my elevation is about 1500ft. It definatly needs rejetted and I am planning on doing that this weekend. Does anyone know what size jets I will need. Thanks

im not sure what the stock size is but probly only one size bigger on the main, and leave the piolet alone untill you get a pipe

[z400riderz400]

i think the stock main is around 116, go up to say 122, should be close

[Quad Dude]

122 is stock in 300exs

[dascro]

So then what size?

all the size intervals in jets are wierd just go to your local shop and ask for the next two sizes up from a stock 300 btw his may not be a 122, stock jets can differ from state to state

[chazekxt]

i had a 125 main in my old 300ex with k a n no lid and full pipe