Road King Spark Plugs Popular Q&A
Q: What size spark plug for a 2001 road king?
A: 6R12. Read More »
Q: For 2005 HD Road King, dual fire spark plug?
A: The mechanics I've spoke to do not find any benefit with the dual plugs, one even told me he read about a class action law suit against the plug manufacture....... Read More »
Q: What is the spark plug gap for a 2001 harley davidson road king w...
A: You should have them at 40 to 45 with a gap gauge. Try 40 first. Go 43 next, if you are not happy. Anything over 45 would not be good. Read More »
Q: How to install spark plug wires on my 2003 Road King
A: Okay this requires some small or really flexible fingers. the very first thing to stress is do one plug at a time! If you look at the very front of your gas tan... Read More »
Q: What is the spark plug gap for a 2003 Road King Classic 1450 cc
A: 0.038" to 0.043" Read More »
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