Grant demystifies the black art of Tire Changing and Repair to help you STAY on the road! "Very informative and practical." See the trailer 
Cotton or synth sweat-wicking t-shirts with the Horizons Unlimited logo on the front and a snappy slogan (changing every year) on the back.
Show your route on your panniers. Great conversation starter when you meet people on the road!
Motorcycle and travel books to inspire and inform you!
ll 5 DVDs with a custom printed slip case. "The series is 'free' because the tips and advice will save much more than you spend on buying the DVD's."
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| BMW Tech BMW Tech Forum - For Questions specific and of interest to BMW riders only. Questions comparing which bike is best etc go in the "Which Bike" forum. |
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#1
27 May 2006
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Airhead alternator
I've not seen on these pages another uprated alternator for 77-95 airheads. See www.euromotoelectrics.com for details. I like the idea that the rotor is a permanent magnet device so cannot burn out, doesn't suffer from the burnt out charging bulb problem, and there's no brushes. It would appear much more reliable by design. 29 amps seems good enough for me.
Anyone out there fitted one?
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Tim ('91 R100GSPD) The only baggage you carry should be in the panniers Last edited by Tim Wood; 27 May 2006 at 11:21. 
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#2
28 May 2006
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Enduralast
Yes, I have one that I fitted on my RT last year to test. The idea was to check it out before I mounted it on my G/S. I did so earlier this year and have since started my RTW trip. I too was looking to replace the weak rotor/brushes/diode board etc. The thing has a ton of output, something like 400 or more Watt, but my main concern was robustness. See my write-up below. Ask questions if you have any.
Kevin http://berettaconsulting.com/other/E...Enduralast.htm Trip site: www.nohorizons.net
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http://www.nohorizons.net
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#3
28 May 2006
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Quote:
Nope... but its on my list! John
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JAMBA 2007 - bikerbytes.com/txp
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#4
29 May 2006
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The 'falure' piont on these systems is the voltage regulator/rectifier. Smaller than a rotor to carry and lighter too.
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--- Regards Frank Warner motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S
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#5
31 May 2006
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airhead alternator
I have replaced on my '91 GS as follows-
1. the rotor (original went open circuit) 2. diode board (1 diode went open circuit - it doesn't charge) 3. dodgy brushes once 4. dirty slip rings 5. 2 blown charging bulbs (never noticed either until the battery went flat. The engine starts to mis-fire, RPM indications all over the place and it then dead cuts) When I save up, I'll get the permanent magnet type alternator. FYI, most big aircraft use permanent magnet generators (PMG's) as a final, ultimate, my God the battery's flat, power supply for the engine electronics. It's because they always work.
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Tim ('91 R100GSPD) The only baggage you carry should be in the panniers
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