2016 Assault bog issues

[AxysAssault]

So riding sicamous this week, noticed on the trail up, that if I gave er then let off for a curve, and feathered back up from the 6000 range, it just bogs out until I pin it.
Seems to only happen in that range, mostly around 6800 I've noticed though.

Trail down was perfect today. Didn't skip a beat.

Any ideas?

I have a MBRP stainless trail can on it. Fresh plugs. Maybe 500 kms

Also, yesterday, climbed to a ridge then stopped for 20 mins, then it would bog out and die if I gave it anything. Had to idle her down a hill and had no throttle for control lol. 30 secs later, it was like nothing happened.
The CEL did flash a couple times, in no consistent way, but hasn't done it since.

Also did this today while climbing and had to turn out. 2 mins later, fine for the rest of the day.

I don't see anywhere alot of snow or water can get into the airbox.

Chitty gas?

Don't really wanna take it in if I don't have to. Out of warranty last week. Of course.

Thanks for reading.

 

[moto5151]

I would try adding new fuel first. Possibly a tps issue as well. But there can be so many other small issues, like water getting into a plug somewhere, or a pipe sensor loose or faulty. Check everything, and get dealer to hook up lap top.

 

[Heimie]

Broken primary spring?

 

[AxysAssault]

Yea, I figured I'd have to dig in a little more. Thanks

 

[Stg2Suby]

Buddy’s ’15 RMK did the same last weekend, partway up the trail started bogging in midrange for no apparent reason, rest of the day it was fine

 

[Pinny]

Had the same issue running 94 petro fuel. Switched up to shell 91 his past weekend and had no more bog