Perlova Posted October 20, 2007 Share Posted October 20, 2007 I just changed the plugs on my R1100RT with new Autolite 3923 plugs. The old plugs were also 3923. However, the tip of the old ones had a beveled shape (see photo) which is different from the new ones (just squared off) . Is the old one worn that badly or has Autolite changed the style of their 3923 plugs? Link to comment
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