2011 Night Armor Xterra S 4x4 6MT
Join Date: Feb 2016
Location: South Central PA
When I was poor(er) I bought a motorcycle that needed freshened up to start riding as my DD. All I could get locally was Champion spark plugs. I used them for a month until I had the money and a source for NGK plugs. I installed them and it was absolute night and day results, it was a different bike, ran so much better. Same difference with lawn mowers and power equipment. Champion comes in a lot of those from the factory, pull pull pull pull pull pull pull start. Change to NGK, it (normally) turns into a one pull start.
I have a buddy that worked at a Yamaha dealership as a mechanic and he loves telling this story. New bikes at the time had to go out the door with Champion spark plugs. He had folks lining up wanting to know why their brand new bike wouldn't start easily and run right. He finally ended up pulling the spark plugs out of all the bikes and replaced them with NGK, problem solved for him, his manager not so much...
I think plugs like Autolite work just fine in cars, but with the bad luck I've have with other brands of plugs in power equipment I always go with NGK if it's an option, because I've found whatever the problem it's usually not the plug when it's a fresh NGK. Never, ever put Champion in anything, and pull it out asap if it came installed in something you bought.