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2020 690 SMCR, 2018 250 EXCF, 2021 890 Adventure
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40 Posts
Discussion Starter · #1 ·
Purchased recently from a dealership with 800 miles on it. There is no record of service in the KTM computer. I changed the oil and filter. I rode around flat Florida a bit and it ran fine. Last week I rode in North Carolina 3000-4000 feet MSL and experience some shut offs in the woods on downhill off throttle sections. It restarted when I pushed the start button. It acted fuel starved on long uphill grade asphalt at wide open throttle in fifth and sixth gears. I'm thinking this is caused by running lean from the factory.
KTM service manager said they don't change the map at first service so no need to bring it to the dealer.
Dealer suggested:
FMF Q4 slip on ($405)
Remove air intake baffle reed
Vortex ECU ($1000)
I'm not in favor of juicing up the 250. If I wanted more power I would have bought the 350.
Dealer says do not change muffler or remove baffle reed without changing the ECU because it will run even leaner.
I need to resolve the shut offs.
I welcome suggestions.
 

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If you are sure its running lean then your only option is fuel adding products, either an ECU like the Get or the vortex or by getting something like the JD jetting tuner. The dealer is correct if you change any of the intake or exhaust it will further run leaner.
 

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Registered
2020 690 SMCR, 2018 250 EXCF, 2021 890 Adventure
Joined
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40 Posts
Discussion Starter · #3 ·
I added a Vortex ECU and a Graves exhaust can with DB killer installed. Runs better but need to do more field testing before I can offer a good performance report. I also installed Highway Dirt Bike (HDB) handguards, comfort low Seat Concepts seat and a Rekluse clutch.
 
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