Having to clear an occasional fouled plug is much different than doing
it on a regular basis. If it's a regular thing, I'd find out what the
problem is. If it's once in a great while, I wouldn't worry a bit.

Used to have fouled plugs in my TriPacer when I first bought it. I was
flying in New Mexico where we flew at 9 to 10 thousand feet MSL and
always leaned. I was going full rich when beginning my descent and at
the next startup it'd be rough. Found that if I richened the mixture
gradually as I decended, it never happened.
--
Gene Seibel
Hangar 131 - http://pad39a.com/gene/plane.html
Because I fly, I envy no one.



"O. Sami Saydjari" wrote in message ...
I just received a booklet from TCM called "Tips on Engine Care" (a very
good book...available from TCM's website...http://www.tcmlink.com/). On
page 12 it says "Never but never attempt to "burn out" a magneto drop
with ground run-up. This 'time-honored' procedure succeeds only at the
expense of the engine's mechanical health."

Well, I was taught this time-honored way. What the book does not say is
what you are supposed to do when you get roughness in one magento. Ideas?

-Sami
N2057M, Piper Turbo Arrow III