spark plug for 03 107inch?

I'm at work and need to know which spark plugs I need for my 03 chopper with the 107 inch motor. It is still all stock intake, carb, exhaust, etc. I've searched here and the net and can't find the info. Thanks in advance.
 

coach

Active Member
Mine came with RN12YC Champion.......ran great for 4K miles. Just replaced them at our local BD dealer with NGK BPR5ES-11......don't have enough miles on them to know if one is any better than the other.
 

lee

Well-Known Member
doubtful you'll notice any difference at all - a spark plug is a spark plug pretty much - the power, or whatever it is, is determined by the coil
 

mcgroom

Well-Known Member
I was looking for the same yesterday BDMChopper and found on the S&S Engine web site under FAQ's that there are 4 different plugs currently being used and there are no performance differences in the plugs. It is a matter of preference.

FYI...gap listed on web site .035 - .045....I put my Champions @ .040 and all is well
 
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