300ex stock jet size

[bnmm]

does anybody now the stock jet size of a 300ex and what should bigger size should i get

[YAZ43]

I think the stock main jet is a 125.

[honda965]

matters wat u got done to your bike

[bnmm]

i know that i have a k&N and hmf with stock jet size and it doesnt miss or anything

[Blue250X]

stock is 122..you can try a 125 and see how that is

[300ex_#387]

Originally posted by Blue250X
stock is 122..you can try a 125 and see how that is

122, 120 depending on your elevation...If it's not sputtering or anything when you get on, or let off the gas then leave it. Usually with those mods it would leave you around a 128.

[AtvMxRider]

122 was in my son's 06 when I got it.

[Blue250X]

Originally posted by 300ex_#387
122, 120 depending on your elevation...

Are you saying honda changed the main jet size if they send to to colorado vs. miami?

[bnmm]

turns out stock was 111 and i got a 125 and it rips now i need a arms high compressoin piston and a cam