Oldcarbuff Posted December 24, 2021 Share Posted December 24, 2021 My engine when warm seems to have a pre ignition knock doesn’t do it when cold could it be a carbon build up? Has anyone experienced this? Link to comment Share on other sites More sharing options...
Paul schaefer Posted December 28, 2021 Share Posted December 28, 2021 It could be carbon build up or just a little too much advance on the spark. Link to comment Share on other sites More sharing options...
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