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Found 7 results

  1. I'm new to this form and have a couple of my bikes I have questions on. First bike is my 2003 KTM 450 SX. It runs great and I can run it down the road throttle and on trails no problem without it dying on me. But when I jump it, it spits, sputters and dies. So when I land I need to pop the clutch to get it started again. Any idea what this could be? second question is on my 2003 KTM 125 sx. When I'm riding it it tends to surge around 3/4 to full throttle. But when I let off it will kinda go back to normal. I've cleaned the carb, new air cleaner, fresh rebuild, just can't figure it out. any help would be appreciated. I am a marine mechanic so I usually can figure this kind of stuff out but I've been stuck on these two bikes for awhile. Thanks
  2. I have a 2002 Ktm 125 sx here the stator keeps burning out on it, I first bought the bike with no spark and thought it was the cdi that was making it have no spark so I bought a cdi unit for it and the bike still had no spark so i bought a brand new stator, then it burnt out, I read online that the coil can back back too much current causing the stator to burn out so I then got a new coil for it and had to purchase a new stator ?and then tried them all together new cdi new stator new coil and YES the stator burnt out again ? does anyone know what to do from now I am debating to just take it to a shop ?
  3. hi, how fast do you think a ktm 125 sx 2013 can go in stock condition and with some mods
  4. hello everyone. recently purchased a 2012 KTM 150 SX. guy told me all it needed was a refresh on the top end(obviously piston and rings specifically) so i get the bike home start breaking it down, get it down to bare frame then go into the head and the cylinder jug has a piece of it missing (i think the piece that is missing was some kid of tab that guided the piston, but with that piece gone it blew the back of the piston skirt out. oh did i mention the engine was filled with water? i drained it before taking the motor apart. anywas, smh... i have a lot of money into this bike, a new cylinder barrel/jug is almost $1,000 from ktm. if that was all it needed id say fine and just put the money out (have to pay for quality) but thats not all the bike needs so i cant go that route. on the other hand, i dont want to give up on the project because i know how beautiful it would turn out. not to mention its a FREAKIN' KTM!!! what im getting at is does anyone have or maybe knows someone who might have a cylinder jug for a 2012 150sx? ive checked ebay, letgo, craigslist and all of the typical for sale sites... please if anyone knows ANYTHING/ ANYONE please reach out. im almost tempted to say id even take a head from a 125sx? facebook profile: https://www.facebook.com/kevin.okeefe.965
  5. So nothing has gone wrong or broken im just simply wondering what spark plug i should run my 2004 ktm125sx on. I just bought it and pulled a ngkr bre7eg out and i just recently went and got some extras from advanced auto. there website recommended that i run an ngkr bre9es. Now the online manuel i found said the stock plug is a ngkr br9ecmvx iridium plug. Im looking to ride mostly woods a little track here and there any recommendations?
  6. I just bought a 2004 ktm 125sx and it is a very clean bike. I have ridden it only a few times and i noticed a weird studder or kind of bog when in mid to high rpms and the bike cuts out for a second and then cuts back in a split second. I cant figure out what it is doing this. I keep air filter clean, new spark plug, good gas. I use an NGK BR9es, the manual says to use NGk Br9evx. i have read it could be powervalve, jetting, maybe silencer packing, im not sure. please ask any questions, i really want to figure this out. thanks
  7. I have an 04 ktm 125 sx. I want to get a gas tank that is black and isn't the natural/clear color. I cant find any black ones on rmatv, motosport, or parts giant so I was wondering if I could use a tank from a different year such as an 07-10? I understand that I would have to get new shrouds but would the seat fit and would it clear the pipe?
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