My 79 YZ 250 fouled a plug, or I should say, I let someone ride it who rode it VERY slowly for a few hours and he fouled the plug.
The plug that is in there is an NGK B9EG. I have some Autolite 4053DP plugs that were given to me for my 01 YZ 250, but they were the wrong kind and I never got around to exchanging them. The Autolite plug is the exact same size as the fouled NGK.
Do you think I will be OK using these Autolites in my 79 YZ 250?
Thanks for the help.