Re: cb750 popping/backfiring

Posted by samgrylls on May 14, 2013; 6:50pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/cb750-popping-backfiring-tp4040698p4040762.html

Just did at little more digging and I think it might actually be fuel fouling; I just read that fuel fouling is typically dry black (which is how my plugs looked), while oil fouling is wet black.  Does that sound right?

On Tue, May 14, 2013 at 1:46 PM, seestheday [via Honda CB750'S] <[hidden email]> wrote:

Oil on your plugs is kind of a bad sign.  It could mean you have bad valve seals.  Replacing them means pulling the head.

1981 CB750K with 900 cams
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals

My wife's recipe website that I'm trying to help promote: BuffyAndGeorge.com. Yes, I am a lucky man.

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