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2022 Ktm 150 xcw fouling plugs issue

531 views 9 replies 5 participants last post by  jg791  
So im assuming you bought this used ? Does the engine ever run clean as it should ? Have you tried simply replacing the spark plug ? Make sure the air filter is clean and oiled. You first need to verify the basics and ensure you have a healthy top end. Buy a compression tester and check your compression. Should be up around 170 psi. If you do have compression in spec next is replace the CCPS as they are well known for issues.
All good information 👍🏻