Topic: Blue and Yellow wire switched and bike runs as it should -solved

[johans]

Ever wonder why some people have to switch their yellow and blue points wires to get the bike to run ? It happened on a 78K build for my sons bike ( Black Betty 1 ) and it recently happened to my 76 F ( Black Betty 2 ). Yesterday , i took the points plate off ( while tracking down another problem ) and took the advancer off and removed the outer "sleeve" that has the cam portion on it and rotated it 180 degrees so that the points open on 1-4 , not 2-3. The points now open correctly for the blue wire to blue wire hook up. A lot of people recommend switching the wires on the site but i have never heard an explanation here for it . My sons 78K runs great with no problems but it always made me wonder why that was the case we had to switch wires.( thank God for the wasted spark setup ) .
I hope this helps out someone with the same question.

[PeWe]

Yes this is good to be aware of and avoid long fault tracing.

Cam or rotor 180 degrees wrong is mentioned in several threads. Pamco, Dyna S ignition threads plus the stock ignition.
I had read about it so I was prepared when I had mounted the rotor for Pamco or Dyna-S ign wrong. Also found photos of stock advancer where it is visible how it should be done