Jet Help

[88 gtu]

I just switched my bike from stock to individual filters and a vance & hines 4 into 1 exhaust. What size jets do i need??
Thanks, Brian

[Signaller]

Hi Brian,
     As you are probably aware, the folks here are very knowledgeable about this. One thing they are not is psychic (perhaps psychotic). I have a running thread at the moment called "UNI PODS, manual petcock..." this may give you some idea as to how to formulate your questions. Also I found a rich knowledge base within the Files section under the "Child Board" Carburetors. Good luck with your mods. Im looking forward to reading about your progress.


Dan

[andyb]

Searching is haaaarrrrrd!

[88 gtu]

Well thank you "andyb" I searched Haaaaarrrrddd and did not see that one. What i did see was about 10 different jet combos and figured someone had this same setup and could steer me in the right direction.

[fj1289]

Stock carb internals?  Or jet kit? 

Main jet will depend on the needle you have - can vary from 112.5 to 135 (those are Mikuni main jet numbers) or the corresponding Dynojet number.

If stock needles on a US model - will have to shim them to get the mid range right.