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2018 KTM 690 Enduro R cold idle and stalled engine restarting issue

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engine stalls idle
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15K views 13 replies 6 participants last post by  reltor  
#1 ·
I'm hoping somebody has had a similar issue and it's an easy fix before I take my bike into the shop. I've tried an oil change and replaced the air filter to start out.

When the engine is just warming up, it will idle between 1200-1500 RPM, and after maybe 30 seconds, the engine will cut off. I turn it back on, and it will happen a couple more times until the engine is warm. Is there a way to adjust the idle RPM? It seems like it would not cut out if the idle RPM was slightly higher.

Another potentially related issue, which seems worse than the first issue is that if I stall the engine from a bad start or something, I have a really hard time getting the engine to start back up. It takes a minute or two of tweaking the gears, rocking it around, messing with the throttle, etc. before it will finally start again. I haven't actually figured out a consistent way to get it started again when the engine gets into that funky state - I just try stuff until it eventually turns over.

The weird thing is that if I don't stall it, and I turn it off normally with the key or shut-off switch, it will start up without a problem.

I'm not sure if the cold idle and stalled engine issues are related, but they seem to have started around the same time.

Any advice or help is useful. Thank you in advance!
 
Discussion starter · #5 ·
Thanks for the suggestions. I attempted the 15-minute reset, and I didn't see any difference, but I may try it again. I ended up cleaning the fuel injector - sprays nicely. I don't think that was the issue, but I put some SeaFoam in the mix for good measure. I'll probably start fueling somewhere else when possible as well. I've looked at the non-ethanol places, but those have usually lower octane levels. I can't remember the octane, but I thought it was below the recommended level. I'll have to check next time I drive by.

Rottweiler Fueling Dongle (690/701) looks interesting for richer fuel below 5500 RPM. More fuel consumption stinks, but I always wanted more low RPM power anyway. Hopefully it at least fixes the idling issues.

My engine/exhaust/stuff that makes it go is all stock, about 2000 miles on it.
 
Discussion starter · #7 ·
I put the O2 dongle on, and the idle issue interestingly became worse - the idling engine will sometimes shut off even when the engine is warm. When over 2000 RPM, there seems to be no issue with or without the dongle.

I just changed the fuel filter and put on a new fuel injector with no noticeable effect - except that now I cannot seem to get the bike into the funky state where it's hard to start after a stall. It seems like I just have the idling issue now.

I don't understand why the O2 dongle would have a negative effect since all I've heard from people using it is that it has helped idling.

Could it be something like a spark plug even though there's no misfire at higher RPMs?
Could it be the ignition timing?

I'm not giving up yet and taking it into the shop because it's useful to understand this bike - but man... it's almost spring!
 
Discussion starter · #10 ·
bresto100 said:
Good day. I have the same problem, when I start cold, it turns off after 30 seconds approx. How did you solve this problem? Thank you.
Click to expand...
I ended up replacing the fuel pump. There wasn't enough fuel pressure. I'm pretty sure it was an issue from the beginning and just got worse over time since I don't remember feeling as much power even when it was new.
 
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