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!

LinkBack Thread Tools Display Modes
Old 3 Apr 2011
Registered Users
Veteran HUBBer
Join Date: Sep 2005
Location: Settling into PE, RSA
Posts: 318
R80GS '92 - Oil lamp comes one when slow down

I have a R80GS '92 model with a 1000 Siebenrock conversion.

Starting up and riding all fine. Once the engine is hot and I come to a stop the oil lamp comes on. When I pull away the lamp does off again.

Have fitted a new oil filter and increase to 20W50. I also replaced the oil pressure switch. Problem persists.

Any immediate ideas?

I had the bike on the market but with this problem word has got around and the bike now comes standard with a "barge pole".

As I am stuck with the bike I am now thinking of using the opportunity to carry out a rebuild over the next for months/year and thereafter go further to a sidecar rig. Just in time for my daughter to be old enough to ride with us. I have spotted Shadow Raven's thread for motivation...
If there's a will there's a way so I will anyway!
Reply With Quote
Old 3 Apr 2011
AliBaba's Avatar
Registered Users
Veteran HUBBer
Join Date: Apr 2001
Location: Norway
Posts: 1,354
If you check the distance between the canister and engine-block it might give us a clue:

If you lay the bike on the ground it's possible to do the measurement without draining the oil.

When you change the filter you should not use a paper-gasket but maybe a shim or two. The white o-ring should be changed once in while.
Reply With Quote
Old 3 Apr 2011
Registered Users
Veteran HUBBer
Join Date: May 2006
Location: Bribie Island Australia
Posts: 580
Have a look at the wiring for the oil pressure switch and the alternator charge warning lamp. May just be a crossed feed or minor short.

You can often rent oil pressure check guages which would prove/disprove low oil pressure at idle.

I think that the oil pump also has a high pressure bypass - ball bearing and spring arrangement - its so many years since I had an R series pump in bits that I am probably wrong - anyway check that the ball is seated.
Reply With Quote
Old 4 Apr 2011
Registered Users
New on the HUBB
Join Date: Jan 2009
Posts: 16
Sounds like you have an oil bypass problem (perhaps filter canister as described above) You need to get an oil pressure gauge and pipe and adapter and and check the physical oil pressure
Reply With Quote
Old 4 Apr 2011
Registered Users
Veteran HUBBer
Join Date: Oct 2002
Location: Stockholm - Sweden
Posts: 316
...poor oilpressure gauge?
...too old, too thinn, oil?
...too low oil-level in the oilpan?
Or... could be a missplacing of the o-ring and shim under the oilfilter cover...

This is why an hydraulic oil-pressure gauge is helpful:
Svenska BMW MC Klubben • Visa trĂ¥d - Oljetryck
Drive Safely,
Reply With Quote
Old 4 Apr 2011
Registered Users
New on the HUBB
Join Date: Dec 2007
Location: liverpool
Posts: 5
oil light on

have you checked that the oil filter is in the right way around ?
Reply With Quote
Old 4 Apr 2011
Jake's Avatar
Contributing Member
Veteran HUBBer
Join Date: Mar 2005
Location: Northumberland, uk
Posts: 723
As Alibaba points out this is a problem that needs checking, my r80gs did the same as you are saying the problem first appeared after covering over 80000 miles and it turned out the canister sleeve in the oil filter chamber had with time recessed - causing a drop in low rev oil pressure - ignore it at your peril - it ended up being a full engine rebuild for me everything needed replaced as the low oil pressure destroyed almost every component. It sould have a measurement of between 3.2 and 3.8mm max. It can be re-sleeved if it turns out to be the problem and a temporary (or depending on your mindset - permanent) repair to add an extra shim to the end of the canister if this is the problem. Follow the link to see the problem and the repair.
Reply With Quote
Old 5 Apr 2011
Contributing Member
New on the HUBB
Join Date: Feb 2010
Location: Dublin, Ireland
Posts: 18
Originally Posted by dc lindberg View Post
...poor oilpressure gauge?
I had the same problem with an old kawasaki,
ie., under 1500revs the oil light came on, when hot.

variously suggested to me to change the oil pump/ strip engine/ and lots else.

changed the pressure sensor (pressure gauge), luckily cheap, and the simplest to do first.

problem sorted
Reply With Quote
Old 15 May 2011
The Raven's Avatar
Gold Member
Veteran HUBBer
Join Date: Jul 2009
Location: liberty, Maine
Posts: 154
Originally Posted by AliBaba View Post
When you change the filter you should not use a paper-gasket but maybe a shim or two. The white o-ring should be changed once in while.
Change the white o-ring...i.e $2000 O-ring EVERY time unless you have a damn good reason not too. If it fails, your engine oil pressure fails. For the cost of it...it's cheap insurance.
I'm Raven, a forever banished exile from ADV,

Check out our blog at
Reply With Quote

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Website running slow? steved1969 Website Feedback 6 18 Jun 2009 00:16
slow aceleration kito Yamaha Tech 8 26 Nov 2008 23:47
BMW R100GSPD alternator lamp comes on early. splash BMW Tech 4 9 Sep 2008 03:13
Garmin Mapsource 6.14.1 slow Frank Warner Navigation - Maps, Compass, GPS 0 27 Jul 2008 23:53
Dog slow karter257 Yamaha Tech 5 8 Dec 2001 13:43


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.

Scottoiler automatic chain oilers. The most important accessory for your next motorcycle adventure!

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


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 13:47.