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Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
A little clean up
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[QUOTE="Jeff Gilbert, post: 684873, member: 20280"] I tossed a ring in my 125sx @ DW this year, bike just didn't seem to run as strong as it used to. Because of all the mud and muck and lack of water to clean the bike before taking the motor apart all I did was toss in the ring and put it back together. I did notice the exhaust port had a lot of carbon build up but I figured it'd be good enough to get me through the week. The bike ran a lot better but I did notice it was running real good one day, real bad the next and real good the day after. This week I desided I'd tear it down and do a complete top end so I did. I have never taken the power valve all the way apart but it was so nasty I figured I really had no choice but to do so. I spent the evening scraping and cleaning untill it was all shiney, lubricated it and reassembled in the cyclinder after I removed it from the dishwasher. I didn't see the little marks when I took it apart so I had to get a 2nd opinion that I put it back together correctly, thankfully I had. I've only ran the bike through one heat cycle so far but I already notice a huge difference in performance. I do have a tuning question though. My bike, though is jetted what I figure to be pretty good, has always been a little bit of a dog off the bottom. I took some advice from another KTM owner and moved the timing just a tad to the other "little" mark, adanced if I remember right. Evenn before the topend I noticed an improvement. Are there any other tricks I can do by simple adjustments to improve throttle response? I rode a YZ167 a while back and a KX125 just the other day and both bikes had quicker rev than mine did. I won't know if that's still the case since the topend but if not, what can I do to fix the slow off the bottom revving? (I'm referring to sitting in neutral) ps hope I'm not rambling :think: [/QUOTE]
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Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
A little clean up
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