Charlies 1947 Chief bobber project

Another Spark plug failure

Another spark plug failure in 36 knuckle,, put the engine back together n it would 100% not start...real mystery... after my Brazil made Bosch sparkplug experience i started trying different plugs to see any spark , w the Autolite 124 plugs , it was nearly nothing n no real shock to holding the plugs while kicking, i tried the longer Autolite 45 plugs n immediately a very bright significant spark, n the engine easily came back to life,, IF you experience NO starting n have ruled out electrical shorts n properly timed ,n u have a strong 6 volt battery and u r testing your battery w a volt meter ,  u might consider its a plug issue, the Autolite 124 s fit but its gotta b the wrong application for these bikes..