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 Oct 2006
Registered Users
HUBB regular
 
Join Date: Oct 2006
Location: United Arab Emirates
Posts: 51
1150gs Surging

I ride an 1150gs adventure 2004. When in low gears 1st & 2nd at low speed I get engine surging very annoying when riding slow standing up off road, I understand that this is a common problem with the 1150. Can any one suggest a cure. I have heard of people that have fitted power commander or other after market stuff.

Peter

Last edited by peter04; 16 Oct 2006 at 19:09.
Reply With Quote
  #2  
Old 17 Oct 2006
beddhist's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Sep 2003
Location: Whangarei, NZ
Posts: 2,227
On the R1100 this is a common problem. The solution is provided by the BMW riders club of the USA (sorry, don't remember the correct name). There are documents on their website. Search for words like "zero-zero" "BMW" and "motronic". Fixed our R1100RS quite nicely. Basically, the FI is running too lean and you reset the thing correctly, which makes it run richer. You kill your warranty, though, if BMW find out.

Ours was so bad it was like trying to ride a bucking horse when going around roundabouts.
__________________
Cheers,
Peter.

Europe to NZ 2006-10
Reply With Quote
  #3  
Old 18 Oct 2006
Registered Users
New on the HUBB
 
Join Date: Sep 2006
Location: Edmonton, AB, CA
Posts: 9
surging issue

Hi Peter
I own a '03 1150gs and, almost, solved the problem by learning to do the valve timing/spacing and the throttle body sync. When I got good at TBS (both stationary and on the "move") and I was anal 'bout how perfect it should be the surging issue became almost non-existant.

Cheers
Tango six-zero
__________________
Insanity in individuals is something rare - but in groups, parties, nations and epochs, it is the rule.
Friedrich Nietzsche
Reply With Quote
  #4  
Old 18 Oct 2006
Registered Users
HUBB regular
 
Join Date: Oct 2006
Location: United Arab Emirates
Posts: 51
Thanks for replys guys ill keep searching the web.

Peter
Reply With Quote
  #5  
Old 18 Oct 2006
Gecko's Avatar
Slippery when wet
Veteran HUBBer
 
Join Date: Mar 2006
Location: Buxton,Derbyshire
Posts: 294
Peter
Thsi is one of the most discussed issues with the BMW oil cooled boxers. Once you start surging you will find tons of discussions some highly technical and other ' snake oil smoke and mirror' suggestions. The problem with surging originates from the engine running a bit lean to meet stringent emmission controls. I've tried all sorts of things to cure this but there are 3 main areas to focus on.
1) good valve adjustment
2) Good throttle body balancing
3) Getting rid of the cat code plug

Number 3 was the most dramatic imrpovement I experienced as it is this that makes the electronic injection run lean to meet the emission controls. I took mine out and it made a huge difference. The downside is slightly poorer fuel ecomony (only very marginal difference) but you are polluting more than with the car code pug in.
There is a modification made so simple by 'Steptoe' from the UKGSER.com website. Steptoe is the resident GS forum mechanic and his modification to the cat code plug is beatiful in it's simplicity. Here's a picture to show you what he has done to cure the surging problem.
Ride safe
Gecko
Attached Images
 
__________________
...on the road to nowhere...

Biking roads by bikers for bikers www.bestbikingroads.com
Get involved - save a life today www.bmdw.org
Reply With Quote
  #6  
Old 18 Oct 2006
Registered Users
HUBB regular
 
Join Date: Oct 2006
Location: United Arab Emirates
Posts: 51
Hi Gecko
Many thanks I might try this as its the simplist I have seen so far. I take it this does no damage to the electircs or any thing else.

Peter
Reply With Quote
  #7  
Old 18 Oct 2006
Registered Users
HUBB regular
 
Join Date: Oct 2006
Location: United Arab Emirates
Posts: 51
Hi Gecko
Just had a look under the seat and I do NOT have a coding pulg fitted. wounder why? May be BMW didnt fit them for 2004.

Peter
Reply With Quote
  #8  
Old 19 Oct 2006
Gecko's Avatar
Slippery when wet
Veteran HUBBer
 
Join Date: Mar 2006
Location: Buxton,Derbyshire
Posts: 294
Quote:
Originally Posted by peter04
Hi Gecko
Just had a look under the seat and I do NOT have a coding pulg fitted. wounder why? May be BMW didnt fit them for 2004.

Peter
Hi Peter
Maybe the previous owner took it out and that may be part of your problem. Different countries had different spec bikes - some with catalytic convertors others without so without knowing the origins of your bike it's hard to say what it should have. I've been running without a CAT code plug on my 1100 for a long while now and no ill effects except the plugs are a bit blacker than is ideal. Some people riding behind me say my exhaust smells of petrol - I just tell them not to ride so close
It may be worth your while going onto UKGSER and asking Steptoe b ut definitely the valve adjustment and throttle bodies should be done properly as this will already bring you a good way to solving the dreaded surging.
Cheers
Gecko
__________________
...on the road to nowhere...

Biking roads by bikers for bikers www.bestbikingroads.com
Get involved - save a life today www.bmdw.org
Reply With Quote
  #9  
Old 19 Oct 2006
Registered Users
HUBB regular
 
Join Date: Oct 2006
Location: United Arab Emirates
Posts: 51
Gecko

Thanks, the Bike originally came from Germany (04 spec)to the UK and I brought it when it was about 8 months old from SPC near Alton. It has alway had the surging. It is going into BMW next week for a service so ill see what its like after that. I would like to get rid of the CAT and fit a y piece and can also.
May be I could also try putting a coding plug in it. Is that what it should have in it for running on low grade fuel.

Peter
Reply With Quote
  #10  
Old 19 Oct 2006
beddhist's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Sep 2003
Location: Whangarei, NZ
Posts: 2,227
Arrow

Here is the link to the articles: http://www.ibmwr.org/r-tech/oilheads/index.shtml
__________________
Cheers,
Peter.

Europe to NZ 2006-10
Reply With Quote
  #11  
Old 20 Oct 2006
Registered Users
HUBB regular
 
Join Date: Oct 2006
Location: United Arab Emirates
Posts: 51
Many thanks Peter
I shall enjoy looking through them. You have some good pictures on your web page looks like a good trip.

Peter.
Reply With Quote
  #12  
Old 20 Oct 2006
beddhist's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Sep 2003
Location: Whangarei, NZ
Posts: 2,227
You're welcome, I hope it helps. The zero adjustment almost cured my girlfriend's 1100RS, but do follow the instructions carefully. Also, I don't know whether anything has changed on the 1150 and 1200 models.

If you break it you own all the parts.

Yes, I'm enjoying my trip again, now that it's warm and balmy on the Aegean coast. I'm not looking forward to Ankara and Eastern Anatolia, cause it'll be cold...
__________________
Cheers,
Peter.

Europe to NZ 2006-10
Reply With Quote
  #13  
Old 20 Oct 2006
Steve Pickford's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Jul 2003
Location: Oxford, UK
Posts: 1,028
My 2p worth:

Bought a 2001 1150GS in June '04 with 24,000 miles on it, plus Y-piece & Remus. Now on 56,000 miles, it's never surged & only pops & bangs on the overrun if I shut the throttle quickly from higher rpm.

All plugs etc still in place. I check (& adjust if needed) the valave clearances every 6,000 miles before balancing the TB's with a Morgan Carbtune. Never messed about with TPS settings/voltages either.

I recently read a thread that said that Rocker Arm adjustment has an impact on surging? I did as the thread suggested & adjusted mine to a slightly tighter tolerance (0.15mm to 0.08mm) with no difference but didn't really expect anything.

My girlfriend rides an identical bike that surges just a little bit but not enough to be an issue. In fact, I have trouble noticing it unless I actually think about it.
__________________
My photos: www.possu.smugmug.com
Reply With Quote
  #14  
Old 21 Oct 2006
Registered Users
HUBB regular
 
Join Date: Oct 2006
Location: United Arab Emirates
Posts: 51
Thanks Steve

i think I need a workshop manual before I start adjusting things I have always done my own mantaince just would like all the right settings etc.

Peter
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Surging R80GS gsworkshop BMW Tech 5 13 Sep 2005 02:07
F650 ADVENTURE ? mr moto BMW Tech 22 23 Dec 2004 11:06
What is Surging? XR Max 600 BMW Tech 2 20 Jan 2004 11:46
R1150GS,how good is it?convince me! Slugnugget BMW Tech 21 28 Oct 2003 17:19

 
 
 

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

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 03:11.