Surging

[sbouchet]

is there a spark plug that really reduces surging for a 2000 r1100rt?? my dealer tried to scare me out of using any thing but bosch oem

[MarkF]

Originally posted by sbouchet
surging for a 2000 r1100rt??

No such thing! Just keep the RPMs over 4,000.

MarkF

[mcrider]

I agree with MarkF. Tried the Bosch 4418, but no real improvement.

[sbouchet]

Thank you guys for letting me know. I have heard so many different stories about all kinds of things. A good throttle hand is also very important..

Stephen

[MarkF]

Originally posted by flash412
Why people accept such crappy fuel injection systems from BMW on motorcycles is a puzzle to me. If their cars ran as poorly as their motorcycles, people would stop buying them, forcing BMW to FIX the problem. Sheesh.

So because I bought a oilhead and have learned to ride it so surging is not a problem I'm part of the reason that BMW still makes this bike? I'm part of the problem? What was I to do? Not buy the bike I wanted? Take it back to the dealer and complained about a problem I didn't have? Leave it in the garage instead of riding it and enjoying it? I don't think so...!

MarkF

[MarkF]

Originally posted by flash412
Yes, you are part of the problem and not part of the solution. When that person is killed, you contributed to their death in some tiny measure by accepting a defective product from a negligent manufacturer.

Oh, great! Now I have to live with the guilt of causing another riders death just because I keep my RPM's over 4,000 and am happy with my oilhead. Please don't name me in your lawsuits.

MarkF
:confused:

[sbouchet]

My My, You guys are very dramatic

[flash412]

"For evil to prosper, good men need but do nothing."

(The legendary motorcycles of Germany... for all the wrong reasons (http://advrider.com/forums/showthread.php?s=&threadid=18068&highlight=surging+OR+surge).)

[Jeff]

I agree with flash, sue em. I had a new GM truck that was a pile of junk, dealer coulcn't fix it, other people said they also had problems, they all must be junk. But there still is alot of them on the road maybe there was a different problem. Keep trying on my second oilhead neither one surged both completly stock.

[Jeff]

You used the word SOME, now why do SOME surge, SOME surge very little, SOME surge alot, and SOME not surge at all. I beleve BMW dealers must do as BMW tells them so they may be limited to what they can do. Much has been posted on what can be done to purge the surge, talk to other oilhead owners if they have few to no problems find out who is tuning there bikes. But I will agree that BMW has been a real stinker on this issue and the more people they hear from the better.

[Forks]

My 2 cents.

On my 1997 R1100RT, purchased new, I used Autolite 3923 plugs and a twin max with excellent results for over 40K miles. Those plugs (yeh, they look cheap and cost almost nothing) always came out with a perfect brown color.

I'm doing the same with my 99 R1100GS for the last 9k miles with the same results - surging is non-existent.

[mcrider]

As a follow up to my comment above, the Bosch 4418 plugs did not make any real difference by themselves. But, as Bart stated above, a good tuneup including a throttle sync (TwinMax) takes you a step closer to surge free.
The final step that I took was to remove the CCP plug and remap the Motronic. This final step made the biggest difference and my '00 R1100RT now runs better than it ever has!

[sbouchet]

What is a twin max?



Thanx
Stephen:

[Forks]

Twin Max is an electronic device for synchronizing your throttle bodies. It is simple to use and very accurate. No real mechanical abilities necessary.

A friend of mine used his on his R1150 GS, then had it in for some tires. He had the BMW tech check the synch and the tech said
it was spot on.

They are only about $80 and pay for themselves after a couple uses.

[KBasa]

It's one of these:

Twinmax description - requires Adobe Acrobat plugin (http://www.adventuremotogear.com/images/twinmax2.pdf)

Me likey. Me want.

[gsjay]

Originally posted by MCRider3
I agree with MarkF. Tried the Bosch 4418, but no real improvement.

My 2002 gs developed a mild surge after it's 12,000 mile service.

I'm 100 miles from the dealer so I bought a set of these bosch plugs and thought I'd give them a try.

Fixed! No more surging!

Maybe I'm lucky but I'd reccommend trying these plugs if you're having a problem. Can't hurt.

gsjay

[Paper]

I bought my through Aerostich.. One of the best purchases I have ever made..$77 or so..

I run my Twin Max everytime I change oil.. Only takes a couple minutes and it makes a huge difference on surge, vibration, and smoothes out shifting due to the engine running smoother..

[Huggin' Jugs]

Tired of the non-existant surging? Battley Cycles in Md has provided the best explanation of the cause.

http://www.battley.com/miscpage_002.asp

[TheSuperScoot]

My R850 didn't surge one tiny little bit. Always well-mannered, he ran as smooth as glass and steady as a rock. I miss him.

My R1100RT has a big attitude and surges like a maniac about 100 miles after a tune-up.

So here's my question(s). Does anyone know if the Techlusion folks will be at the MOA rally selling their R259 power boxes? If yes, does anyone know if they will do installations? And finally, does anyone have one installed who would like to share his experience with us?

Thanks
Terry B.
Pittsburgh

p.s. I walked past the Techlusion folks in Redmond and sniffed, "Hah! MY bike doesn't surge at all!!! Bad karma results from bad attitude.

[mcrider]

Terry,
I heard that the techlusion folks will be in Charleston, but check with http://www.bmwmoa.org/rally03/ to be sure.
You will find a ton of discussion on this and other fixes for surging on the BMWRT.com board; just do a search.

[GlobalRider]

I just got back from a great month of riding in the Alps.

While there, I got to speak to many GS riders. I made a bee line for them at mountain passes where a lot of bikes are usually parked (simply because I was taking delivery of a new GS Adventure as soon as I got back from being on tour).

Feedback I got from owners of new GS "2 Spark" models, of which most of them already previously owned oilhead "non 2 Spark" models: the new "2 Spark models do not surge". Some of them that owned the older oilheads had surging issues and were happy that the problem had been solved (and so am I).


All the best,
Alex

Alex's BMW Motorcycle & Global Touring Page
http://www.ott.igs.net/~ace

[71737]

Originally posted by TheSuperScoot
My R850 didn't surge one tiny little bit. Always well-mannered, he ran as smooth as glass and steady as a rock. I miss him.

My R1100RT has a big attitude and surges like a maniac about 100 miles after a tune-up.

So here's my question(s). Does anyone know if the Techlusion folks will be at the MOA rally selling their R259 power boxes? If yes, does anyone know if they will do installations? And finally, does anyone have one installed who would like to share his experience with us?

Thanks
Terry B.
Pittsburgh

p.s. I walked past the Techlusion folks in Redmond and sniffed, "Hah! MY bike doesn't surge at all!!! Bad karma results from bad attitude.


Take a look at my website on the new Techlusion R259 TFi. I am in no way associated with the sales and distribution of this product. I know of the inventor and have helped well over 100 others totally eliminate or significantly reduce the surging on their oilheads. I have never received a negative email from anyone after recommending any of their products. Since I receive a lot of requests for information on this product, I developed this website:

http://www.kansas.net/~krummk/index.html.first

[Ralph]

Hi... I've heard much about surging, but am puzzled as to what behavior of the bike (engine) the term is meant to describe... Do you mean that with the throttle set and the bike is running supposedly easily along it nonetheless feels as though one is opening and closing the throttle slightly, or not-so-slightly? I.e., the engine isn't pulling smoothly?

I've got a 2003 R1150RT that has just seemed to start doing this... i.e., if I'm running level with a constant throttle setting around 3000-3400RPM, the engine doesn't seem to want to pull smoothly..., but feels like I'm twisting the throttle slightly back and forth, when really I'm holding it rock steady. The engine, in other words, just doesn't feel smooth, but like it is slightly speeding up and slowing down. Is this the infamous surging?

And... if it is, Whaddayadoaboudit? I.e., How can one fix the bike so it stops and the engine runs smoothly at all throttle settings and loads?

I note a couple of fellows mention changing spark plugs... any info as to exactly what brand and type? Some have mentioned something called a Techlusion 259... Whazzat? And others have mentioned double sparked heads. Any votes or ideas as to the best way of taming this beast? (IF what I described above IS the infamous 'surging.'

Thanks for any and all information!
Best,
Ralph

[mcrider]

Ralph,
What you have described is indeed the Dreaded Surge - Welcome to the club!
For endless discussion on the fixes that many of us have tried, do a search on the RT board at www.bmwrt.com/
For info on the Techlusion 259 go to www.kansas.net/~krummk/index.html.first

[Ralph]

Thanks, Bill! I shall head on over to BMWRT.com and see what wisdom is to be found there. I sure need some (or should I say, the Bike appears to!) :cool:

Best!
Ralph