Here is my latest UOA on my 2013 Sportster - 5000 miles on the oil/filter, 15000 total miles on the engine.
Copper is finally coming down! Lead and tin are down.
I also had Blackstone do a particle count. This UOA was with the Harley Sportster Oil filter, 63805-80A. (20 micron standard filter)
The next UOA I will also get a particle count, that will be with the Mobil 1 M1MC-131 filter rated at 99.9% efficiency at 10 microns.
At about 1000 miles on this run I checked my plugs. The Front plug was gapped at 0.045 and the rear was at 0.035. I cleaned off a little corrosion from the top of the plugs and set the gap to 0.040.
The bike ran much smoother with the old plugs gapped at the proper 0.040" and it has improved even more with the new NGK DCPR7EIX Iridium IX plugs.
Copper is finally coming down! Lead and tin are down.
I also had Blackstone do a particle count. This UOA was with the Harley Sportster Oil filter, 63805-80A. (20 micron standard filter)
The next UOA I will also get a particle count, that will be with the Mobil 1 M1MC-131 filter rated at 99.9% efficiency at 10 microns.
At about 1000 miles on this run I checked my plugs. The Front plug was gapped at 0.045 and the rear was at 0.035. I cleaned off a little corrosion from the top of the plugs and set the gap to 0.040.
The bike ran much smoother with the old plugs gapped at the proper 0.040" and it has improved even more with the new NGK DCPR7EIX Iridium IX plugs.