Had a little talk with Klause about spark plugs.
He said if they are fouling and the gap is not increasing
they are too cold. Go to hotter plugs.
Nippon Denso, if you can find them, are better.

He also says 50 hours is typical for auto plugs in
aircraft. He should know. He has over 100 MSD "Plasma"
systems in the field.

Paul Lamar

Paul
My B9EV  and  B10EV plugs just past 100hrs and still going strong.
Ian.

Are you using the stock ignition Ian?

Paul Lamar

Can somebody clarify what all the numbers and letters mean on plug
designations?
BUR7EQ, does the R mean resistor?  I wouldn't think so if the stock
wires have
resistance.  Do the B9EV have resistance?  Would moving the resistance
from the
wire to the plug affect life?  Wouldn't think so.

--
Perry Mick
Duckt N7XR
http://www.ductedfan.com

The higher the number the hotter the plug.
R stands for resistor plug. 5K ohms.

How do I know all this? :-)

I just downloaded the pdf file from the NGK website :-)
Here it is.

Paul Lamar
 
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