I don't want to mislead you or make things worse. There IS a headlamp relay on the stock wiring system. This relay turns the headlamp OFF during use o...

A) The starter circuit is special in that it contains not one, but two relays... and both should be checked. But there is a sequence to the testing......

✦ You'll need to un-crimp that part in the center and lift the "eared" part off. You can probably best reattach with commercial grades of epoxy, or (a...

Suggestion: You could easily "relax" the battery tender charging program by plugging it into a common "home lamp timer", and then setting the timer fo...

That's not always such a good idea. ✦ Research has shown batteries don't always like to be held at full charge. Batteries prefer to be regularly "ex...

That switch is obviously an owner-added option. From the sound of it, it's most likely to turn OFF the headlamp during the day. Besides being totally ...

Very glad you're happy so far.If you want to be sure about the charging situation, then you can temporarily add a DC ammeter between the battery post ...

Additionally, at some point in the 70's (/5 to /6 ??) they converted from cable driven tach to an electronic tach. The electronic tach can be used on ...

✦ You're correct, the factory brushes are soldered to the brass brush holder. The secret of soldering is the application of HEAT. That means remove th...

✦ I just looked on Amazon and they have a $19 LED bulb that looks like it will do the job. CLICK HERE. You might find something with a higher Lumen ou...

✧ I have zero experience with the Dyna 3 ignition. ✧ I stand by Jim's explanation of plug wiring and the "wasted spark" setup that Airheads use. Tha...

The location of the oil filter by-pass ball valve.... More and more of these are having issues as the spring collapses/breaks after 40 years of s...

You'll remember that new brushes was only one of several suggestions.

Electrical current flowing to the headlamp bulb, and resistance to that flow of electrical current are the Number 1 and Number 2 creators of heat in t...

@10385 Let us know how it goes.