01 yz125 ,w/ dynoport ,pipe

Buddy just bought a 01 yz125. Having bogging issures on throttle. Starts idles fine.

Stock is 25/460?

He has 25/340 in it!

Dynoport said keep stock or go up one size

What do you all think he should run?

Anyone? It's running better with a 460 still has a slight bog. Went to 450, says its better but still a little boggy.

Needle clip is middle position (moved from 2nd from bottom). 25/450. Still bogs at 1/4 throttle. What do we do!!!!

Dang this site is useless.

Reeds new?

Try leaner on the clip

Do a leak down test?

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