125-200cc 08' CR 125 Engine Bog

Hello everyone, took my 08 CR 125 riding today, after a 1 hour break-in, i rode it like it is suppose to be ridden, hard and aggressive. Loved everything about the bike BUT: it has a bog, for instance 2nd-3rd gear up a trail/hill and if you chop the throttle, say after a jump, and grab a handful of throttle, 3/4 throttle, it will hesitate/bog and then recover, usually if you clutch it if comes on the pipe and runs great. The carb runs perfect everywhere else, any ideas? The dealer(BILLS mc plus) set up the jetting for me and says that it is identical to a couple of motocross guys who ride the same bike and it's perfect for them.

I have had a couple of 125's, the last a 2002 WR 125, and it is NOT bogging because of being lugged around, the thing flat screams, AFTER you get past the bog

Try richening the needle a clip if you haven't already.

the wr125 I got from Bills had a bog also. I just dropped the clip one position.

Yep ...I agree

I have my 06 CR with the clip at the 4th from top..works great

Thanks guys, i will check to see where the clip is at today.

I ran my 08 CR125 on the 5th clip, 27.5 pilot and a 380 main.

52 tooth rear sprocket helps cure the bog as well. I did that on my sons bike and it allows him to be in third or fourth gear in the woods all day