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Old 06-27-2013, 10:57 PM   #1
montibank OP
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Early USA Model KTM 950s and Electronic Power Control

So I recently obtaind an 04 KTM 950 (USA model) - and to be completely honest was thoroughly unimpressed with power delivery. Granted it has some issues and I am working through them at my own pace. I have worked through some glitches and yes things are much better now (especially now that both cylinders are firing) - but power is still luke warm feeling.

A while back I stumbled on this information: http://www.ktm950.info/how/wotf/wotf...icPowerControl

Well... It is possible that my bike is one of these and perhaps my power delivery issues may be at least partially attributed to this little wonder of a contraption. The article does state if it has the EPC valves and in the US where not required one should remove them.

How?

Where are they located?

How can I confirm my bike does or does not have them?

Any suggestions appreciated. I realize there are a hundred other likely suspects/potential contributors to my disappointment, for now I have opted to table those and focus on this specific topic.

Thank you in advance,

Michael
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Old 06-28-2013, 07:41 AM   #2
Goss
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If your EPC is still connected and functioning it will prevent full throttle openings in second and third gear. There are electronic valves and some tubing connected to the carbs. I removed the entire mess and expoxied the ports closed on the carb caps. Problem solved. Or you can unplug the valves for a quick fix but I highly recommend removing all of it. See link below.


http://www.ktm950.info/how/wotf/wotf.html

Forgot to mention that the manual has a good layout drawing of the system so you should be able to pull the tanks and take a look to see if you have it on your bike. If there are tubes connected to your black caps on your carbs then the system is still there.
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Old 06-28-2013, 03:32 PM   #3
MortimerSickle
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Check your jetting to make sure the PO didn't go crazy rich. My used '04 was so rich, people riding behind me were telling me they could smell raw gas.

I had a big flat spot in mid-range that I have since lessened with leaner jets, but I am still trying to get it just right.
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Old 06-28-2013, 03:58 PM   #4
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Funny you mention that... Mine WAS crazy rich... I dropped the needles and adjusted the air mixture screws and that helped tremendously. Still havent monkeyed with the main jets because I hadnt decided what to do about the exhaust situation yet. And really... Who needs WFO ... I mean really right? :p

Thanks for the info from your descriptions I think the power valves might be out but I'll have to take another look.
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