Bayerische Motoren Werke Airhead

Saw this on ADV already :)

This is going to be interesting. The more airhead cafe's, the better!
 
You have a nice bike there. Those air heads are hard to beat. Be very suspicious of the tank though. I went through 3 of them before finding one that was not too rusty to use. The last one that was checked well had been painted and developed a leak when pouring gas into it. They have thin metal and are notorious for being rotten. It is a bad thing to figure out after spending money and time on a nice paint job. I tried to repair it but it met it's demise with a sledge hammer after it would not cooperate with the welding machine. It will not be bothering anyone else ever again. I did that bike stock:

<img src="http://i447.photobucket.com/albums/qq193/centaurojoe/misc/IMG_1625.jpg">


Good luck with it!!
 
Looking great man! I absolutely adore airheads. That is my next buy for sure.

What are your thoughts on the gap between the tank and seat in your pic above. I noticed the seat has the cutouts for the shock already...probably designed for use with a toaster large capacity tank....just curious.

Keep up the great work man!
 
Those CCA's sound fine and dandy to me. Hell, my 6cyl 4.0L HEMI Valiant has a 450CCA battery in it. I'd say 400CCA for the Beemer would be heaps.

Cheers - boingk
 
The airheads have massive starter motors (I have a 1975 R75/6). They need a ton of juice to run. And with no kickstart option, you want to make sure your battery is up to the task (unless you have a friend to bump-start your bike with).
 
Tim said:
The airheads have massive starter motors (I have a 1975 R75/6). They need a ton of juice to run. And with no kickstart option, you want to make sure your battery is up to the task (unless you have a friend to bump-start your bike with).
Click to expand...

I disagree. First of all: most gearboxes are interchangeable, so you can get a kickstarter. In fact: My 1988 R100 (RT) cafe has a kicker.
And I run my bike on a small 14 Ah battery. It can do the job, barely. But I always have that kicker if the battery isn't strong enough.
 
rkatapt said:
The last two weeks have been sleep, work, wrench, and repeat. My meals have consisted of beer and cigarettes in the garage.
Click to expand...

F*** Wheaties! That's the breakfast of champions I know!

Everythings lookin pretty good so far. What was the electrical problem you are having?
 
I like it. It should be a real stunner when finished (looks damn good now). I was considering one of these quite hard, but I came up with a '77 Bonneville instead :).
 
That really sucks to hear man. I always hate dealing with electronics when I'm working on my projects. It always ends up being something small that you tend to overlook or not even consider. Well, good luck pounding that out. Keep us posted.
 
And I assume the gen light circuit has been checked / replaced / updated.... BMW in their infinite wisdom let the whole charging system hang on one light bulb working properly.. I'm not super familiar with the Omega (aside from the research I did (which lead me to the EnDuraLast)) but if that portion of your charging system isn't replaced with some sort of resistor or solid state circuitry, that is VERY likely your problem...

The battery may also be at fault.. If your battery is bad, it can damage the charging system.. if the charging system is bad, it can damage your battery.. Some of my electrical adventures are chronicled here..

http://www.cafematty.com/tag/charging-system/
 
The Led doesn't have a big enough electrical resistance. It will work, but it will work differently and it will sound weird, but here it goes:

I have a led light as a charge light on my BMW too. As I said, the resistance isn't big enough to work as the normal light works. Everytime I start the bike I have to rev it once (i usually wait until the engine is warm). The light will go out once you've revved it once (4000/5000 rpm) and it will charge just like the normal system. Believe me, it works every time. Been riding like that for years now.
 
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