 |

4 Mar 2007
|
Registered Users
HUBB regular
|
|
Join Date: Jul 2006
Location: India for the winter...
Posts: 23
|
|
r80gs getting at the clocks
Hello there,
Does anyone have any advise before i open up the clocks on my r80gs. my speedometer dosn't work (its not the speedo cable because the mileage guage works fine). I remember trying to open it up before but failed miserably ( i was afraid i was going to break something )...has anyone tried to do this before???Does anyone have any helpful tips?Thanks in advance.
Barra O Luanaigh
:confused1:
|

4 Mar 2007
|
Contributing Member
Veteran HUBBer
|
|
Join Date: Jul 2002
Location: Sydney, NSW, Australia
Posts: 1,362
|
|
The balck piece at the top need s to be (carefully .. very carefully) expanded ... choose the bit at the back so you don't see it when you reinstall it. Most ordinary mortals will damage it . And geting a new one is difficult. You are probably best off finding a speedo repairer. Once you have it opened .. you may =find a broken hair spring, bearing gone .. you got the watch making skills to fix it? I did 3 months as a watch maker .. it was not easy and my eyes anit what they used to be.
Fitting a bicycle speedometer is easy , and they are cheaper than getting your original speedo repaired!
__________________
---
Regards Frank Warner
motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S
|

5 Mar 2007
|
 |
Contributing Member
Veteran HUBBer
|
|
Join Date: Jan 2004
Location: Munich, the beer capital
Posts: 1,063
|
|
Hey Frank,
sounds like you're stuck in Oz instead of doing the trip you ha planned via western Africa to Europe. I was expecting to catch up with you at the HU meeting in the UK in June. You won't be there, will you?
Hans
__________________
Only when we pause to wonder
do we go beyond the limits of our little lives.
(Rod McKuen)
|

5 Mar 2007
|
Registered Users
HUBB regular
|
|
Join Date: Jul 2006
Location: India for the winter...
Posts: 23
|
|
Thanks Frank,
Sounds messy alright.I'm not much of a watch builder but as the bike is off the road for a while i might give it a bash,,,,
its been annoying me for a while,,,,thanks for the tips and the time,
Barra O Luanaigh
|

5 Mar 2007
|
Registered Users
Veteran HUBBer
|
|
Join Date: Jun 2005
Location: Cape Town / South Africa
Posts: 207
|
|
Whatever you are thinking, don't' do it.
You will have no success trying to fix it yourself. Even if you get it to work you will find the calibrating to be out completely. this needs to be done on a special instrument.
The reason it is not working is most likely because the gears is ceased and one or more gears might have to be replaced.
The needle is very delicate and will brake by just looking at it to hard and will definitely be out of calibration just touching it.
I would recommend disconnecting the speedo cable to prevent further damage until you can get it fixed by a professional and buy yourself a cheap bicycle speedo because they can do exactly the same job.
A new speedo for these older bikes is about double the price of one for a new GS, so don't fiddle with it even if you think you can fix it.
|

6 Mar 2007
|
Contributing Member
Veteran HUBBer
|
|
Join Date: Jul 2002
Location: Sydney, NSW, Australia
Posts: 1,362
|
|
Quote:
Originally Posted by gsworkshop
The reason it is not working is most likely because the gears is ceased and one or more gears might have to be replaced.
|
Errrr no.
The gears are for the odometer.. that is functioning.
The speedo is direct drive to the drag cup. The bottom bearing (and mount for the cable drive) is plastic (on teh G/S and onwards) and can ware out. Easiest to replace that with a brass piece from an older model bm .. they saved weight (and cost) by going with the plastic bit. And the hair springs can go .. and the needle bearing .. all fiddley stuff. None of the parts are avalible from bmw... a wercked old bm speedo may be a source of parts .. if you can find one.
Calibration can be achieved using an electric drill .. but you'll need to know the speed of the drill (and that will be 'locked' to teh mains frequency - provided it is not a varible speed model) the tyre diameter and the geat ratio on the hub... or in the gear box and final drive for a bm.. - the easiest these days is to use a gps and compare. Adjusting teh reading .. well it is not simple. Depenmds on the adjustment required - if a constant offset - moveing the needle on its splined spindal is easiest. Non constant .. well you have the hair springs..
-----
I hope to be in Africa in a week or two... been saying that for a while. I'll definatly be at the Isle of Man TT, and the uk hu meeting following it..
__________________
---
Regards Frank Warner
motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S
Last edited by Frank Warner; 6 Mar 2007 at 00:40.
|
Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...
2020 Edition of Chris Scott's Adventure Motorcycling Handbook.
"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)

Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.
Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers and travel is covered on motorcycles of all sizes.
(ONLY US RESIDENTS and currently has a limit of 60 days.)
Ripcord Evacuation Insurance is available for ALL nationalities.
What others say about HU...
"This site is the BIBLE for international bike travelers." Greg, Australia
"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK
"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia
"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA
"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada
"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa
"This is the answer to all my questions." Haydn, Australia
"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany
Lots more comments here!

Every book a diary
Every chapter a day
Every day a journey
Refreshingly honest and compelling tales: the hights and lows of a life on the road. Solo, unsupported, budget journeys of discovery.
Authentic, engaging and evocative travel memoirs, overland, around the world and through life.
All 8 books available from the author or as eBooks and audio books
Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!
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 R80G/S.
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 all over the world with the help of volunteers; 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, or ask questions on the HUBB. 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.
|
|
|