Vintage BMW Motorcycle Owners

Spectro 20w50 motorcycle oil.

Any 20W50 oil is fine as long as it has ZDP additives or is designated for motorcycle use. St.

Also check the gray wire's position on the back of the ignition switch. 58. if it is accidentally plugged into the spare 30 plug (red), it will energize the circuit even with the key off. St.

First place I would look is the ignition switch. It is not hard to get a wire on the wrong pin.
Other than that, check the places the gray, and gray/black wires are plugged into, something may be off. Good luck, St.

Take a look at the factory relay, it may have the internal diagram printed or scribed on the side. St.

With the proper relay set up for a high current draw side, you could run an air compressor and use air horns. LOL St.

I will take Bourbon as second favorite.

Good news, St.

I am posting late in the thread sorry. Over the years of riding I have had similar failures. Sometimes the issue is a simple fix of just cleaning plugs and contacts.

Start with the simple stuff first, check the connections. St.

Scotch? LOL, sometimes the crimped on connectors are the first sign of "previous owner's disease" The wiring diagram is correct, White, Red, Yellow, black/gray. So the other is wrong, it is from the universal fit fairing. I will bet if you find the factory harness it might solve some of yo...

I just got done looking at the R90x website, very interesting stuff there. St.

Not to be a jerk or burst your bubble however, parts to do what you want to do may be difficult to find. I say this as you are not the only one who wants to go dual. The good news is there maybe parts out there from someone who switched from the ATE dual brakes to Brembo brakes. I did that swap on m...