Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > BMW Tech

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.
Contact Overland Solutions for all your custom modifications and setup for overland travel.

7 Litre Camel Tank Lets You Explore More, Click to Find out More!

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 16 Feb 2012
Registered Users
Veteran HUBBer
 
Join Date: Feb 2006
Location: Istanbul & Baku TR
Posts: 556
Which alternator is better ?

Going to change the alternator on my R80 GS Basic 1996. Have these choices I found on net:

motoelekt.com
euromotoelektrics.com
repro-works.com

Which one is better ?
More output and longevity is the issues.
__________________
"where the traveller goes, nobody knows ! "
Reply With Quote
  #2  
Old 16 Feb 2012
electric_monk's Avatar
Moderator
Veteran HUBBer
 
Join Date: Aug 2001
Location: Dublin, Ireland
Posts: 262
Hey Samy

I moved the thread into the BMW Tech section as it will probabaly get a better response.
__________________
The electric monk always has faith.
Reply With Quote
  #3  
Old 18 Feb 2012
Registered Users
HUBB regular
 
Join Date: Jan 2006
Location: South Australia
Posts: 28
I have done the best part of 700,000 km on my airheads without the OEM alternators giving me any problems, so you will have to explain what problem it is you are trying to fix.
Reply With Quote
  #4  
Old 18 Feb 2012
AliBaba's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Apr 2001
Location: Norway
Posts: 1,351
IMHO the main problem with the stock system is that it's old and probably it should be serviced (clean connections, check/replace wires etc).

It might be worthwhile to upgrade the diodeboard and do some upgrade on the earth-leads but other than that it's fine.
Unlike the other systems you can get parts for the stock system almost everywhere. I bought a new rotor from the police in Zambia without problems.

I have not seen any reports that shows that the new systems are better, but I've read that people have had problems getting parts for the newer systems.

Why do you need higher output?
Reply With Quote
  #5  
Old 18 Feb 2012
Registered Users
Veteran HUBBer
 
Join Date: Feb 2006
Location: Istanbul & Baku TR
Posts: 556
Unhappy

My bike stop sometimes and doesn't start again. Did it after changing the battery with new one too. Once stopped in the traffic light and needed to carry it with a pick-up to home. Also having serious starting problems. I made starter cleaned and rebuild a bit (Valeo), still having the problem.

I am not good at electrics. I don't need higher voltage output. I think problem is with the alternator. That is the main idea. I don't feel good about this problem. And can't find a trustable/good electrician. I can try to fix myself with Clymer and service manual but afraid to make it unrepairable )))

I am away from my bike, living in another country now and will be away at least one more year. Wanted to buy and store the alternator to change it when I am back.

That's the story.
__________________
"where the traveller goes, nobody knows ! "
Reply With Quote
  #6  
Old 19 Feb 2012
Contributing Member
Veteran HUBBer
 
Join Date: Feb 2005
Location: Australia
Posts: 107
Greetings Samy

The Motorrad alternator is basically the same type of alternator as the stock system you have in your bike now but a lot beefier so has more output. The advantage of doing this upgrade is that it's a drop in replacement but has the disadvantages of that system, wearing brushes, heat generation in the stator/rotor. One other trap in this type of system is that if the generator lamp in the dash fails the system won't charge. Motorrad supplies a bypass for this reason but they recommend a voltmeter on the bike.

The Endurolast alternator is a brushless alternator system with a permanent magnet. Installation is slightly different as the rectifier and regulator is one unit so it needs to be mounted in a different place on the bike. Having no brushes to wear out is a good thing.

They both put out around the same output at high RPM but I don't know which type of alternator has the better current output at lower RPM's and this could be part of your problem if you are riding in city stop/start traffic a lot.

As mentioned earlier the stock system should be adequate providing it's working correctly and you have no additional equipment you are trying to power (extra lights, heated vests, etc) but as I found out the official output may not match reality.

We use heated vests in winter on our bike and I did have charging problems with the stock system so about 4 years ago I fitted a Motorrad alternator and found it to be very good. I also fitted a voltmeter as well. I would recommend putting a voltmeter on your bike before spending the money on a new alternator as it will show up any existing problems you might have. It took me about 8 hours to fit the new alternator and you need a fairly hefty soldering iron. The instructions were quite good and if I did it again it wouldn't take nearly as long.

There are some stock faults on the original charging system including cracked earth leads, faulty board mounts, loose connections and dead rectifiers that could be the cause of your problem.

One problem with both systems is that they make the bike non standard so if it dies while you're in the middle of nowhere you have the problem of parts etc.

Finally, have a look at this link (and other from Bob's site) about problem solving the charging system

BMW Airhead Motorcycle Alternator Repair

And this one for some comparisons between the charging systems

Enduralast or Omega Charging upgrade revisted - ADVrider

Hope this helps

Good Luck

Ian J
__________________
Always have plan B, and maybe plan C
www.travelswithkitty.com
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


 
 
 

NEW! HU 2015 Motorcycle Adventure Travel Calendar is now available! Get your copy now for some terrific travel inspiration!

HUGE, 11.5 x 16.5 inches, beautifully printed in Germany on top quality stock! Photos are the winning images from over 600 entries in the 9th Annual HU Photo Contest!

Horizons Unlimited 2015 Motorcycle Adventure Travel Calendar.

"The calendar is magnificent!"

"I just wanted to say how much I'm loving the new, larger calendar!"

We share the profit with the winning photographers. YOU could be in the HU Calendar too - enter here!


HU DVD Autumn Special!

Take 40% off Road Heroes Part 1 until October 31 only!

Road Heroes features tales of adventure, joy and sheer terror by veteran travellers Peter and Kay Forwood (193 countries two-up on a Harley); Dr. Greg Frazier (5 times RTW); Tiffany Coates (RTW solo female); and Rene Cormier (University of Gravel Roads).

The first in an exciting new series, Road Heroes features tales of adventure, joy and sheer terror by veteran travellers."Inspiring and hilarious!"

"I loved watching this DVD!"

"Lots of amazing stories and even more amazing photographs, it's great fun and very inspirational."

"Wonderful entertainment!"

Check it out at the HU Store! Remember to use Coupon Code 'HEROES' on your order when you checkout.


Renedian Adventures


Renedian Adventures

What others say about HU...

"I just wanted to say thanks for doing this and sharing so much with the rest of us." Dave, USA

"Your website is a mecca of valuable information and the DVD series is informative, entertaining, and inspiring! The new look of the website is very impressive, updated and catchy. Thank you so very much!" Jennifer, Canada

"...Great site. Keep up the good work." Murray and Carmen, Australia

"We just finished a 7 month 22,000+ mile scouting trip from Alaska to the bottom of Chile and I can't tell you how many times we referred to your site for help. From how to adjust your valves, to where to stay in the back country of Peru. Horizons Unlimited was a key player in our success. Motorcycle enthusiasts from around the world are in debt to your services." Alaska Riders

contest pic

10th Annual HU Travellers Photo Contest is on now! This is an opportunity for YOU to show us your best photos and win prizes!

NEW! HU 2014 Adventure Travel T-shirts! are now available in several colors! Be the first kid on your block to have them! New lower prices on synths!

HU 2014 T-shirts now in!

Check out the new Gildan Performance cotton-feel t-shirt - 100% poly, feels like soft cotton!


What turns you on to motorcycle travel?


Global Rescue, WORLDwide evacuation services for EVERYONE

Global Rescue is the premier provider of medical, security and evacuation services worldwide and is the only company that will come to you, wherever you are, and evacuate you to your home hospital of choice. Additionally, Global Rescue places no restrictions on country of citizenship - all nationalities are eligible to sign-up!


New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80 G/S motorcycle.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events (22 this year!); we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, the HUBB or to receive the e-zine. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.


Books & DVDs

amazon

All the best travel books and videos listed and often reviewed on HU's famous Books page. Check it out and get great travel books from all over the world.


Motorcycle Express for shipping and insurance!

Motorcycle Express

MC Air Shipping, (uncrated) USA / Canada / Europe and other areas. Be sure to say "Horizons Unlimited" to get your $25 discount on Shipping!
Insurance - see: For foreigners traveling in US and Canada and for Americans and Canadians traveling in other countries, then mail it to MC Express and get your HU $15 discount!




All times are GMT +1. The time now is 00:59.