stock pipe jetting

[fmf400ex03]

i have a 152 runs good a lil more pep than the stock jet and not rich i just put a 42p in think ill be able to run it

[mojoe2878]

should be good for it especialy with the holes in the air box lid and the k&n. you may want to even try a 155 since the baffles are out, just do a plug check and it will tell you if you need another size up.
on the 42 pilot with about 2 to 2 1/2 turns out from lightly seated on the air/fuel screw you should be able to remove the choke from the carb and get better air flow and still be able to start it easy.