I'm not sure where to start, but does anyone know why the left side coil on a 75 CB 550 isn't firing? I replaced a set off a donor bike and I'm 99% sure that they should be working. There is no arc between the spark plugs on cylinder 2 & 3 when applying 12v... I am going to try and check the points but I'm not sure what I am doing..
Functional test:
Spark plugs on cyl heads - same as before. 1 & 4 firing, 2 & 3 are not.
Next step: look at Points. Points seem to be barely firing (which I'm assuming is 1 & 4) and the other side is NOT firing at all.
How do I test the condensors from here?