jetting a 440ex at 1100ft stock carb full exuast

[drunken master]

I recentley put a 440 kit 89mm 11:1compression in my ex w/ a stge 2 Hot cam. and a FST oil cooler kit. Also a sparks racing x6 w/ spark arrestor.
Does anyone have any suggestions on where to start with the jetting on a stock carb.
Heres my info...

Elevation: 1100ft above sea level
location: Stilwell Ks
Temp: 40-70 this time of the year/a little humid in the summer


Slow jet (pilot)???
Needle jet ???
clip location???
Main jet???


Any suggestions are appreciated:chinese:

[hondaride400]

i have the same set up except im 12.5 to 1
Leave the needle in stock position.
piolt 46
main 162
I also had to remove the choke to get more air

[drunken master]

thanks for the reply.

are you in the same elevation 1100ft?
:chinese:

[hondaride400]

pretty close im from missouri.

[cals400ex]

with the air box lid on i would try:


158 keihin mainjet
move needle clip down one position to 4th spot
42 pilot jet
2.75-3 turns out from lightly seated on the fuel screw

[drunken master]

If the pilot needed to be almost 3 turns out than would'nt you just go to the next size pilot?:chinese:

[cals400ex]

Originally posted by drunken master
If the pilot needed to be almost 3 turns out than would'nt you just go to the next size pilot?:chinese:


you could go up to a 45 pilot jet. i have ran both the 42 and 45 with great success.