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Everything Dirt Bike
Make / Model Specific
KTM
96 250 sx won't hit power valve
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<blockquote data-quote="96sx" data-source="post: 207641" data-attributes="member: 4024"><p>Ok let me better explain myself. I bought the bike and after I got it I rebuilt the carb. And found that it was leaned way out. Needle last clip, 158 main, 38 pilot, air/fuel screw turned all the way in just turned 1/8 th out. Probably to make up for the super lean condition it ran really poor. But still hit power band. My first trip out was A disaster. I bought several main jets, and pilots knowing I needed to re jet it. So I started rich 172 main, 42 pilot. It ripped just fine kinda bogged a little at low rpm and spooged a lot out the exhaust. Then I lost all power thought it was because I went so rich so limped it back to camp and went leaner. Couldn't get it to get into power band. So took out my reeds realized they were way gapped out. Flipped them over but couldn't get it to hit power band anymore. After messing with it all day I gave up and stopped riding it waited to get it home and realized I had no compression. So did top end so I'm starting fresh. Talked to Ktm they said 168main, 42 pilot. Broke in with 3x heat cycle up to running temp, cool down completely. Light ride around bringing rpm up through all gears gradually. Now I'm riding it like normal But it bogs down low and hits power band randomly... I never had the bike at 100% so I'm just trying to start from fresh but can't find stock carb settings for a 96 Ktm 250sx that's when I called Ktm and the recommended that setting to start with but doesn't seem right. Or I got something else going on? Sorry for the confusion it was running poor but still went into power band. I haven't took off covers to see if it's even trying to engage and my power valve spring doesn't have an adjustment... z dimension is at 48mm</p></blockquote><p></p>
[QUOTE="96sx, post: 207641, member: 4024"] Ok let me better explain myself. I bought the bike and after I got it I rebuilt the carb. And found that it was leaned way out. Needle last clip, 158 main, 38 pilot, air/fuel screw turned all the way in just turned 1/8 th out. Probably to make up for the super lean condition it ran really poor. But still hit power band. My first trip out was A disaster. I bought several main jets, and pilots knowing I needed to re jet it. So I started rich 172 main, 42 pilot. It ripped just fine kinda bogged a little at low rpm and spooged a lot out the exhaust. Then I lost all power thought it was because I went so rich so limped it back to camp and went leaner. Couldn't get it to get into power band. So took out my reeds realized they were way gapped out. Flipped them over but couldn't get it to hit power band anymore. After messing with it all day I gave up and stopped riding it waited to get it home and realized I had no compression. So did top end so I'm starting fresh. Talked to Ktm they said 168main, 42 pilot. Broke in with 3x heat cycle up to running temp, cool down completely. Light ride around bringing rpm up through all gears gradually. Now I'm riding it like normal But it bogs down low and hits power band randomly... I never had the bike at 100% so I'm just trying to start from fresh but can't find stock carb settings for a 96 Ktm 250sx that's when I called Ktm and the recommended that setting to start with but doesn't seem right. Or I got something else going on? Sorry for the confusion it was running poor but still went into power band. I haven't took off covers to see if it's even trying to engage and my power valve spring doesn't have an adjustment... z dimension is at 48mm [/QUOTE]
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96 250 sx won't hit power valve
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