2018 1290 SAR running rough and bogging at higher rpms/throttle positions

Hey guys, I'm sure the answer is already on the forum here somewhere but I'm in Canada on a motorcycle camping trip and from the States so I'm under data roaming on my cell phone and don't want to search forever for the answer.

I've been on this trip for 8 days now, bike ran perfect all the way,u couple thousand miles, until today. It stutters and bogs down while giving it decent throttle at anything above 4000/4500 rpms.

Battery voltage seems good. Bike starts and runs as normal under light throttle. I'm continuing on, but can't accelerate very swiftly without it running like crap.

Thanks guys!

... fuel filters

When were they last changed?

Does sounds suspiciously like fuel starvation,@obrianmccbeat me to it.

I don't know, bought it used with 7000 miles on it

100% fuel filters. Do you have a KTM dealer nearby?

所以,昨天晚上我进入小镇阿剩一巴n the fuel level meter. I shut it down and filled up the tank. It sat on the side while I drank a coffee.
Started it up and pulled away from the fuel station and it was back to normal.

Seems odd to me. Was hot yesterday, 90°f and I was riding for hours untill I needed fuel.

Could it have been some kind of heat related glitch?

Later morning start today, first time I slept in a hotel after 8 camping days and was hard to get up out of bed.

Let's see what happens with it today. It's my last day and heading home just over 5 hours seat time.

Did putting in fuel when the level was low agitate things enough to temporarily clean a spot off the dirty filter bag?

Or a tank of shite fuel? Id swap them filters soon as anyway, even if you only go OE style for now, get a set off@gefr

I'd put my toonie on FF sounds exactly what i went through with mine.....had a set with me . changed them and all was good.

Lunch stop at 2 1/2 hrs and still running fine

So, last leg home, fuel level at 2 bars it started running the same way again. Stopped, out one gallon of fuel in it and it runs fine.

So?

——2燃油量表不上酒吧like heavy throttle & acceleration, but runs just fine at low throttle inputs and can still motor down the hwy.

-With anything over 2 bars showing it rings perfectly at all throttle inputs.

-Is there water in there? Is 2 bars equal to running on fumes (even though I ride 50+ miles with low throttle inputs at that level)?

-dirty filters that only show signs with fuel tank level at 2 bars?

You’d better check that BOTH fuel petcocks are open. You’re actually out of fuel in the left side when there is fuel left in the right side of the tank.

Yeah, If they are both open I would close both petcocks fully, pull the hose off one and then open the other up and check your getting good flow, then reverse.

... it's the fuel filters. Change the fuel filters.

If you dont have extra filters you can still rinse off the current ones and reuse them
Fuel filters 99% sure

If you arent sure yet@kid a, seems the general consensus is fuel filters, did you get that? Or is it acc1 connector, no hang on, thats another thread

I'm back home now. Bike runs totally fine as long as there are more than 2 bars showing on the fuel gauge.

I'm due for the 9000 mile service so I'll dig into it in the next few weeks. Until then I don't have any time it plan to ride it. The fact that I got home without any major roadside repair is a plus. Odd to me that 2 bars of fuel showing means no fuel, or water, or bad filters. I'll order and change the filters during my general service and see how it goes after

Fuel filter. Just had exact issue on a long trip. Plenty of message board material on it. I took to dealer and they diagnosed a throttle body issue, and made a repair. Less than 50 miles later (on a 750 mile leg of trip home) problem returned. Nursed it home during cooler temps, never letting tank below half, and had no issue. Got near home, purposely letting tank get low and engine temp hot, problem returned. All started in 90-degree temps. Changed filter and all is great.

How often should the fuel filters be changed?