I crossed mine over to a Bosch as I have a dislike for champion plugs..
I think that is mostly cosmetic. A Champion plug is not very pretty to look at. An AC, Autolite, Bosch, NGK, a-n-y plug looks better!
As for function? I've seen 'Champs' perform like one also! I'm almost positive the plug on my auger is a run of the mill lawnmower Champ and it's been running my auger for nearly 20 years. Granted, maybe 5-10 hours use per year isn't much but it starts on 4th pull (from cold, 1 or 2 if warmed) almost every time because it does not have a primer, or I could probably do it in one pull if it did. Plug-wise, I have absolutely no prejudice.
cant find the manual
If you had time to post this, you already had enough to find the answer right out of the
horses mouth. Your computer is like a dog. You gotta 'learn it' tuh hunt!
Bag of Oats