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Old 02-27-2010, 07:11 PM
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Down_South Down_South is offline
Motorized Bicycle Elite Member
Join Date: Aug 2008
Location: North Carolina
Posts: 140
Default re: Motorized Bicycle Aftermarket Spark Plugs

Originally Posted by Kevlarr View Post
Guess you haven't heard the old saying, "Pistons, the breakfast of Champions!"
Yep, I have a John Deere tractor that uses the Champion 71 (RC12YC) plug and I switched over to the Autolite 3924. I like to get out the DMM/DVOM/Ohm meter and check plug resistance. The Champion 71 measured in at 15.1K and the Autolite 3924 measured in at 4.82K, so I use the Autolite. Too much resistance can fry the ignition coil.
If you hear something that sounds like angry bees in a coffee can, It's me riding my bike.

#41 or #415

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