Reply To: '65 BigTwin 40hp 1/2 spark

[olcah]

You might take another look at the plug wire: Had a similar situation this winter and found that the stab-in type of spark plug terminal had not connected with the copper core of the plug wire. The newer (NAPA) plug wire has a small diameter copper core that is easy to miss when you push in the connector. Also in stripping the wire, leave a 1/4 ” or so of core beyond the insulation. Then “frizz” this up to improve the possibility of it connecting with the steel spring of the terminal. Try that on the coil end too. Best is to go back and assure by feel that the terminal has actually contacted thru the core.