KTM Forums banner

ktm 250sx

  1. 02 KTM 250 sx cylinder swap questions

    Two Strokes
    Hi there! I’m new to this forum stuff and looking for answers on a swap I’d like to do on my 2002 Ktm 250 sx. Just to get started I’d like to say if my questions seem dumb I’m just a curious 15 year old. I’m not new to motors I’ve been around them my whole life I know a lot about them but...
  2. Ktm 250 xcf 2008 Leak down

    Offroad 4 strokes
    Hi everybody, I bought a broken KTM last year to rebuilt and i did a leak down test yesterday and I have alot of air going out of my carburetor. I dont have a clue what is wrong with it. My piston was TDC. Thanks guys. Il
  3. 2004 KTM 250sx jetting problem?

    Two Strokes
    Hey, my 2004 250sx stutters after half throttle? It has an FMF fatty w/ a FMF shorty silencer, it is also running 91 oct 40:1 with lucas oil fully synthetic 2 stroke oil. It doesn't foul plugs, but sometimes will die when you first click it into 1st. My main issue is that it loses power after...
Top