Back to them spark plugs, how 'bout Robert Johnson's "Terraplane Blues". He was not only a great blues artist but a highly trained mechanic too and knew how to get a motor running smooth...
"I'm gon' get down on this connection, oh well, keep on tanglin' with these wires
I'm gon' get down on this connection, oh well, keep on tanglin' with these wires
And when I mash down on your little starter, then your spark plug will give me fire"