The demands for better emissions and fuel economy in the mid 1970s necessitated leaner fuel mixtures. These leaner mixtures required greater voltage and more spark to ignite. This challenge led GM ...

To ensure that the test was fair, we had to make this distributor as good as new, or better. So, before it ever saw action, the stock distributor was treated to a new rotor, cap, and module.

so you may want to check out your bike to see. I cleaned the bottom of the electronic ignition module and the heat sink with alcohol. Then I cleaned it up a bit more with some fine 3M Scotchbrite.