From: "Ron Milam" 
Subject: Re: GG Maintenance notes
Date: Tue, 18 May 1999 12:20:57 -0700
>bead blasted the plug, one of those Bosche WD whatever platinum tipped
>wonders.  I was mega black and sooty from the last session of putzing
>under the hand of my youngest.  This seems to be a great, foul proofing
>plug as some have said.
>
> case you haven't figure it out, you can bead blast plugs on two
>strokes.  They don't really wear out.  Takes practically forever.  If you
>bead blast a plug, make really sure to clean out all the beads first!

Any one bead blasting their plugs should carefully inspect the plugs under a
magnifier (10x works well). After blasting plugs with fine beads and then cleaning
them both with compressed air and in an ultrasonic cleaner, I have still found beads
jammed into various internal crannies. Repeated cleaning did not remove them. But,
I'm afraid that they might dislodge during operation. Maybe 3 or 4 small glass beads
going through the engine occasionally would not cause significant damage, but I have
decided not to risk it.
  By the way, Chris there are many of us out here that read your posts and rarely reply.
I just want to say we appreciate your time.

Ron Milam