Review on NGK 6046 DCPR7EIX IX Iridium Spark Plug - Compatible with 2017 Harley-Davidson Dyna Fat Bob - FXDF by Davey Kamau

I fix my old HD ultra classic myself. I love doing this and keeping it running but I forgot to do something important a while ago. I replaced my OEM spark plugs with these NGK Iridiums after the bike had clocked 5,000 miles. Since these are high quality forks, I planned to change them every 10km. Well they work so well I forgot to change them until last week. The bike is close to 50,000 miles and has finally received a new NGK Iridiums kit. I think 45,000 miles with the same plugs is pretty much proof of how well they work, especially considering they were in an air cooled engine which gets pretty hot at times. Many stop and go in traffic jams and trips of thousands. I expect to get another set when the bike hits 100km in a few years.