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Omega 600 upgrade for Airheads

Posted By Joseph Pallaria #33417, Friday, July 5, 2019

My 1977 R l00 S has run great for 40 years. Performance has improved from over 30 modifications I’ve made over its 30,000 original miles. Despite BMW's excellent track record for reliability, it has but one major weakness: the electrical system. The original system cranked out about 240 watts of power and often needed the engine churning at 4,000 rpm to keep both the electrics working and charging the battery at the same time. Unfortunately, that often left me with a choice of running the headlight and having freezing hands or running just the parking light and turning on the heated grips.

The Omega 600 ends the years of making that choice; it is essentially a complete charging system minus the battery. The system is a bolt-on modification and includes a rotor, stator, rectifier (diode board), solid diode mounting bolts, solid state voltage regulator, alternator, brushes and all the wiring. It's a fantastic upgrade because it resolves problems that come with running several electrical components at once and does so at just 2,000 rpm. The Omega 600 also represents a drastic improvement over the stock 240-watt unit by boosting electrical output to 600 watts! The state-of-art replacement parts are made of heavy duty, high-quality materials and encompass today's advanced technology in bulletproof electrical components.

The kit went in last spring and received its testing over the summer. The system presented exceptional reliability throughout the summer and once running, the Omega 600 seemed to also give the old bike new life. I'm not sure how to describe it, but it seemed to run smoother and respond quicker than before. The Beemer performed flawlessly over a 1,600-mile testing period and left me pleased with the upgrade as summer sadly faded into fall.

Besides keeping the battery charged at much lower rpm, there was more than enough electrical power to operate the headlight, heated grips and even an electric vest for my thin-skinned riding partner’s needing extra warmth!

The Omega 600 kit is not cheap at $595, but the high quality of the parts and proven functional excellence seems to justify the cost, and Rick Jones, the owner of Motorrad Elektrik, was helpful with installation tips along the way.

The kit comes with a threaded bolt that screws into the center of the alternator and releases the “pressed fit” of the old alternator, allowing it to easily be removed from the engine. Obviously, you’ll have to cut the three wires leading to the stator. Once the alternator is out of the machine with the stator and alternator cap removed, the cap is sent to Motorrad Elektrik where Rick solders the three stator wires of the new alternator to the cap. He then sends that along with the rest of the kit for the bolt-in modification. Rick recommends different modifications for different generations of Airheads, so be sure to contact him to find out what your specific Slash 5 or 6 may need. Regardless, it’s an excellent upgrade with high quality parts!

Running the Omega 600 turned out to be a straightforward project even with the advanced planning of getting the original cap soldered to the new stator. This is a great upgrade for 1977-95 airheads needing more electrical power to drive all the accessories and electrical goodies available today. This upgrade may even have me add driving lights before the next riding season!

(PS Don't forget to check out Airheaded, the MOA blog dedicated to air-cooled BMW motorcycles!)

Tags:  airhead  Airheaded  electrical  MemberTested  upgrade 

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