PDF ( Download) Language. English. Pages. 151. File size. 8 MB. Download the 2022 KTM 125 SX Owner's Manual PDF for free. Explore the manual online, or choose to print or download it on your computer.
Motorcycle KTM 125 SX Owner's Handbook Manual Do not change into a low gear at high engine speed. Fork oil (SAE 4) (48601166S1) ( p. 135) 22.7.3 125 EXC Six
7Tktm. You were right to change the plug from a 7 as it is too hot. Obviously you set your jetting for altitude, temperature, surface and how you ride it. We have owned 125 KTMs for many years and while the manual jetting chart is pretty good, I consider they are always too lean on the main jet recommendation.
I have a 2003 ktm 125 sx and it keeps fouling plugs like crazy! they only last about 5 hours and I am running the NGK iridium pugs in it. I have tried leaning it out and that didnt work it even got hot from me leaning it out just a little. It was burning crank case oil, but it is no long burning it since i richened it up a little.
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