spark plug gapping

[mjderstine]

Hey guys, i know we are electrics here, and i should really be turning my lawn mower into a 60V power house with lipo's and brushless, but com'on. its a lawnmower.

i have however gotten a new spark plug and some new blades, and a new filter.

I am curious if anyone knows the proper gap for the spark plug. i know that it will work out of the package, but a lot of time, it is not exact.

I have a 4hp craftsman 20" lawn mower. anyone have any insight on the proper gap for the spark plug?