Jetting 400ex

[blasterandy]

All rite I wannt to know if 155 is a good jet size for a 400ex with a hmf and a k&N or if i need to change due to colder weather. It feels to lean in the summer and i haven't got to run it lately due to the exhaust being at the dump and my new one on the way. N e help would be appreciated.:confused: edit: i am a 500ft asl

[blasterandy]

bumpity bumpity bump bump bump:p n e helps

[MO-EX-RIDER]

throw in a 160 and check that

[blasterandy]

Thats kind of what i thought. How about the needle clip should that be adjusted i am new to the carb adjusting. When i bought my ST and K&N i put a 155 in and that was that it just seemed kind of blaa not the bottom i wanted .I hope i am happy with my HMF

[vze2hnvz]

airbox lid on, off, or modded?

[blasterandy]

AB is off but will probably go back on soon due to the dryer climate. Cold but drier.

[Wheelie]

If you throw the airbox lid back on, leave the 155 in, or go down to a 152.

If you leave the lid off, step up to a 158/160.

[blasterandy]

Thanks.
:cool: