BMW Airhead Parts

No longer available

`Bout time you came out of the closet, John.

Most of my stock went into the parts bin for your new bike Dave.

That parts bin must be full to overflowing by now.

Time you started to glue it together.

Looks tidy.
Nice to see alternatives develop.

Does this live in the same place, under the tank?Is it included in the $450?

What spare parts do you envisage will be required?

All included in the $450, PM me and let me know your email address and I can send photos of the instalation on my R100GSPD Classic.

Spare parts? None really required I have a inital production run of 50 units in stock and have tested 3 prototypes on 3 different bikes for over 50,000 kilometres so I anticipate no real problem. Design is simple.

John Olive

Thanks for the PM John,
I thought I might as well ask here rather than by PM.
Could you expand some discussion on your units for twin plugged bikes?
Feel free to speak in general terms, though if you want to get specific my bike is a G/S, will have 1000cc siebenrock barrel piston combo, will have a 296 camshaft (engine work mostly 2K to 5.5K), vm34 mikunies... etc.

I'm actually quite interested in a powerdynamo set-up (twin plug version) but am still 'shopping' now and for a while yet.

Post up here or if you'd rather PM that is fine with me too,
Cheers,

My setup has two options for twin plug BMW's as yours has Mikunies I would recommend my 22 degree Ignition Module seting the idle advance at 6 DBTDC with a maximum advance of 28 degrees. With stock Bings and a twin plug setup I set idle at 0 degrees with a 26 degree maximum advance.

I use this setup on my 1996 R100GSPD with a 1070 long rod Seibenrock Barrell/Piston/Rod/Cam kit stock Bings jetted down to suit the larger capacity, twin plugged with early model S heads and large valves.

I also use it on my 1990 R100GS Twin Plugged.

The powerdynamo setup is quite different being a CDI, and I understand quite limited in electrical power output. I use (and stock) 450 watt alternators as I often have extra lights, heated grips and a heated vest running so 280 watts is not enough for me, on a race/rally bike it might be the go. Powerdynamo setup is crank mounted too so no option for a spare Hall Effect sensor, if it fails (as they sometimes do) then you are walking.

Good luch with your search.

John Olive.

Hi John, could you elaborate on your dual plug setup a bit more please. Pics on the ignition modules ?
What coils are comparable with the setup?
Thanks Phil

Uploaded at ImageFra.me

The Dual trigger setup is a redundant Hall Effect trigger, if one fails plug in the other and away you go. Ignition module is the same case as the upgraded BMW unit with the larger heat sink. BMW manufactures mounts for most of its bikes for this module, I stock most of them. The trigger unit is compatable with all normal coils single and twin plug units.

If you want more information on Dual Plugging the heads etc, let me know.

John Olive

https://www.youtube.com/watch?v=PrlYXgadDBQ

Nearly finished the latest project.

Can you supply that for an R75/5 ?

What are you looking for?

Yea sorry i meant eletronic ignition for an earily R75/5 .

No sorry only for "Bean Can" post 1981 bikes.

Hi John, What would be the price of an ignition system with 2 ignition modules for use with Bing carbs. I currently have 2 standard ignition modules parallel wired firing a double dual coil from a Mitzi car. I assume my coil will be ok for your system. Cheers Phil

BMW Paralever driveshaft's available again, the MK 2 version has superior German Uni Joints and has been redesigned for longer life between rebuilds. $750.00 plus shipping.