quick question for all the 
quick question for all the "gurus"
IAW Joe Reeves:
"Rig a spark tester and have the gap set to 7/16". Hook up the timing light to the #1 plug wire. Crank the engine over and set the spark advance to 4° less than what the engine calls for"
why is it that a spark tester is needed?
quick question for all the "gurus"
IAW Joe Reeves:
"Rig a spark tester and have the gap set to 7/16". Hook up the timing light to the #1 plug wire. Crank the engine over and set the spark advance to 4° less than what the engine calls for"
why is it that a spark tester is needed?