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nextgenMX Added a reply to 2020 KTM 150SX jetting issues and running poorly
10/23/2025 9:42am Yes I've heard about the gaskets being bad. With 50 hours on it I'm sure it's already worn out. I'll get the replacement then
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nextgenMX Added a reply to 2020 KTM 150SX jetting issues and running poorly
10/23/2025 9:41am Run the needle richer then? But if it's sputtering a bit would it be lean or rich already
nextgenMX Started a new thread 2020 KTM 150SX jetting issues and running poorly
10/23/2025 8:17am Recently i bought a 2020 ktm 150sx. From my first ride I noted that it bogged when I pinned it from an idle in neutral and when riding. I figured this was a lean bog as the weather is getting cooler. I went into the manual and found a jetting chart which based on my temp and elevation, (sea level...
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