Bike died after oil change

GoldenKTM
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GoldenKTM
Hey Vital. I changed the oil and powervalve spring on my 17 ktm 250 sx and started it up for a short ride down the road. After running for maybe 2 minutes it died without any sputtering. The engine did not seize but it feels like it lost some compression and the throttle doesn't turn normally. I have 17 hours on the bike.

I changed the spark plug and tried starting it again but it wouldn't start.

What could have possibly happened? I had gotten oil through the filter at about 10 hours but changed the oil and had no issues. I don't think that is behind the issue today.

Thank you.
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CSAR FE
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CSAR FE 8/4/2018 6:36pm
8/4/2018 6:36pm
What do you mean when you say the throttle doesn’t turn normally?
GoldenKTM
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GoldenKTM 8/5/2018 6:01am
8/5/2018 6:01am
CSAR FE wrote:
What do you mean when you say the throttle doesn’t turn normally?
There is more resistance when I twist the throttle open and closed than normal.
CarlinoJoeVideo
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CarlinoJoeVideo 8/5/2018 8:34am
8/5/2018 8:34am
Is the gas on?

None of your symptoms have anything to do with the powervalve or oil change...

Any more details of the problem?

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kb228
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kb228 8/6/2018 5:38am
8/6/2018 5:38am
CSAR FE wrote:
What do you mean when you say the throttle doesn’t turn normally?
GoldenKTM wrote:
There is more resistance when I twist the throttle open and closed than normal.
Slide is dirty, tube is dirty, housing is dirty, or cables arent routed correctly.
CarlinoJoeVideo
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CarlinoJoeVideo 8/6/2018 8:54am
8/6/2018 8:54am
CSAR FE wrote:
What do you mean when you say the throttle doesn’t turn normally?
GoldenKTM wrote:
There is more resistance when I twist the throttle open and closed than normal.
kb228 wrote:
Slide is dirty, tube is dirty, housing is dirty, or cables arent routed correctly.
Oh yeah cable could be hooked where the gas tank meets the frame above the cylinder head. Good call!
GoldenKTM
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GoldenKTM 8/7/2018 8:42am
8/7/2018 8:42am
CarlinoJoeVideo wrote:
Is the gas on?

None of your symptoms have anything to do with the powervalve or oil change...

Any more details of the problem?
I'm pretty sure it is the jetting. I am not knowledgeable on two stroke jetting but I know it was running rich. I am in south carolina where it is very hot and humid and the bike ran very poorly when I managed to get it fired up in the garage after a spark plug change. There aren't any shops or dealers in sumter where I live or in Columbia sc that work on ktms and the nearest ktm dealer is about 2 hours away. I think I will have to suck it up and take it to someone who knows what they are doing.

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