1984 WR400 jetting

I'm running a new Sudco 38mm VM with factory Husqvarna settings.

New ignition, starts first kick.

bike sounds 'fluffy' and feels it off bottom, but pulls fine on the mid to top.

Anyone have any experience with jetting 400s? Anyone had to make any changes from stock?

Bike is still raceable, but not right.

Considering going smaller on the idle jet but as its only a 35 already surely that's not an issue?

is the slide size (cutaway) also correct? 35 does sound like it should surely be lean enough.

Drop the needle one clip. That should clean up the bottom.

Thanks for the replies...

Slides are stamped (underneath) with the same marking and cutoff 'looked' the same. I suppose and hope if both old n new are stamped with same code then they should be!!??

Did drop the needle, didn't seem to help particularly. Its now in the center position.

the slide will be marked with a number, i.e 2, 3, 3.5, or so....higher the number, the leaner. just might want to verify you are starting off with same as stock i guess or at least know whats there...if its a 2 i bet its a tad rich perhaps. many 430 owners modified or replaced their 2.5 with a 3.0 with good results, including myself.

Justintendo - that's good info and from memory 2 does 'ring a bell'. I'm not home for a couple of days due to work but will check when I get there. The 2.5 and 3.0 slides sound interesting, thank you.