2023 ktm running lumpy after a stall

Hi

My 2023 ktm runs lumpy on start up straight after a stall & flashed up the 1 long & 2 short error codes which is the temp control sensor.If left for a minute it fires up as normal & runs great. It did this twice at the track This just happened after it had a new piston in at the shop I've had the original single unit start stop switch swapped to a 2 button type at the same time (not oem). I swapped it back to original & started & it purposely stalled it in garage 4 times with no issues but the engine was cool. Has anyone had similar issues. Ohh please no comments about don't stall it😅

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Factor E
Posts
969
Joined
9/22/2011
Location
So Cal, CA, USA
6/23/2026 11:05am

What model?

 

6/23/2026 11:25am
Factor E wrote:

What model?

 

Ohh sorry it's a 350 sxf

Factor E
Posts
969
Joined
9/22/2011
Location
So Cal, CA, USA
6/23/2026 1:45pm

Change inline fuel filter   Sensor could be going out or fuel pump

6/24/2026 12:06am
Factor E wrote:

Change inline fuel filter   Sensor could be going out or fuel pump

I put a fresh inline filter in right before problem started. I'll check the filter in the tank if there's one

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