E3 Spark plugs
#4
they don't seem to work on automobiles . . .
on my 5hp briggs, thats a completely different story. Starts up first time, runs much better.
Seems to only work on the air-cooled, small-engine stuff.
on my 5hp briggs, thats a completely different story. Starts up first time, runs much better.
Seems to only work on the air-cooled, small-engine stuff.