Thread: 420's bad plugs
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Old 11-12-2003, 11:16 PM
Dave Bunker's Avatar
Dave Bunker Dave Bunker is offline
Join Date: Aug 2002
Location: Elk Grove, CA. 95758
Posts: 90
420's bad plugs

has anyone had any problems with the porcelain breaking off the spark plugs. I have discovered after 15,000 miles this has happened. As a result I lost compression in two cylingers and need to do a valve job. What's the chances my cylinders are damaged because of this? It will be the end of a fabulous 420sel if that is the case.......Any feedback will be greatly welcomed....
Dave Bunker
1987 420SEL, 180k strong Blu & Grey
2004 Road King Custom
Sacramento, CA
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