Review on NGK 4055 Bpr7Eix Spark Plug by Michael Reynolds

Order my second set for my VStar. I ordered the first set about 2 years ago. At that point, my bike ran away. it stalls easily and seemed to work a little rough. I thought it might be a spark but everyone including my mechanic seemed to think it was carbs so I spent money getting them and some other work done and the bike ran fine we even looked at each other checked the spark plugs and they looked normal and were properly spaced. After 2 years I finally decided it was time to change the spark plugs and bought NKG again. Now the bike runs great and smooth. I think one of the first NKG kits had a weak spark. That's why I'm only giving it 4 stars based on the previous set.