Remus systems and R1200GS

[docnvv]

I'm new to this, so please be gentle!

After fitting a full Remus system on my 2011 R1200GS recently, I find that the engine would sometimes cut out with the quick blip of the throttle when down shifting, for example say low speed in 2nd and then needing 1st: A quick blip to get the revs right would result in a sound like the pistons are hitting top dead centre and die. Not really clever if it is in front of the very traffic you are passing!!
It was suggested that a Power Commander could fix this, but I believe there is a similar system, but smaller also available.
Anyone that can shed some light?
If it is a Power Commender, which one do I get? Remus replied that they are only advising on cars!!! and gave me someone clever (NOT) to write to, but they also failed to give a satisfactory answer and just recommended Power Commander.

Please HELP. I'm about to give up on the Remus system.

 

[autogs]

search is your friend there have been numerous threads about this subject.

 

[Skid06]

i fitted a new full remus system plus K&N filter on my 08GSA it totally knackered the fuelling making it very snatchy low down, i fitted a power commander 3, downloaded a map from there web site, they have 10s of them to suit touring sport etc, it transformed the bike making it a joy to ride, the best solution would be to take the bike to a dyno center and have the pc3 and full remus mapped to your bike, well worth it theres a top guy on here who will map your existing chip to your system for even better results, hilltop motorcycles

 

[(RIP) Arkwright]

There's a guy in South Africa struggling with the same problem, BMW SA seem to think there is no problem but someone else in this country if I remember correctly has found a problem with the RH throttle body sticking occasionally if I remember correctly.

I wonder if Geoff at Hilltop Motorcycles is the man to help?

 

[(RIP) Miff]

It was suggested that a Power Commander could fix this, but I believe there is a similar system, but smaller also available.
Anyone that can shed some light?

I suspect you're thinking of the "Accelerator module"...

 

[Sgt Bilco]

A lot of GS's will cut out if you don't blip the throttle on a down shift especially as fairly low revs but yours sounds a bit worse than that.

You may well need a PC and I think yours would need a PC5. I have the PC3 on my 06 and it's brilliant. I would advise investing in an hour on a Dyno to set it up perfectly and the results will be superb

 

[GAJA]

How about a remap from Hilltop Motorcycles? no power commander needed and popular mod, there's a thread about them. I did mine with very good results, pulls like a train now!

 

[Dave h]

Hi

i have a 1200 twin cam 2010 with just a Remus end can on,if i blip the throttle like i used to with a sports bike mine still does cut out occasional in lower gears,(normally rattling bit fast into roundabouts) but learnt to live with it and give myself a bit more time to change down, seems to work ok then

Dave

 

[Pablo1]

I'm new to this, so please be gentle!

After fitting a full Remus system on my 2011 R1200GS recently, I find that the engine would sometimes cut out with the quick blip of the throttle when down shifting, for example say low speed in 2nd and then needing 1st: A quick blip to get the revs right would result in a sound like the pistons are hitting top dead centre and die. Not really clever if it is in front of the very traffic you are passing!!
It was suggested that a Power Commander could fix this, but I believe there is a similar system, but smaller also available.
Anyone that can shed some light?
If it is a Power Commender, which one do I get? Remus replied that they are only advising on cars!!! and gave me someone clever (NOT) to write to, but they also failed to give a satisfactory answer and just recommended Power Commander.

Please HELP. I'm about to give up on the Remus system.

seem to remember someone on here mentioning a similar problem that occurred only when he took the baffles out of the can, on replacing the baffles the problem did not re occur,
hth

 

[Bendy toy]

Mine has an Acroprovic system with stacked twin cans with baffles. It's fluffy at low revs and pops a lot on overrun. A remap is planned.

The engine runs fairly weak as standard. A free flow exhaust might be ok but only works properly with a remap. Also only way to release the exhaust's full potential.

Hilltop said don't run a free flow exhaust on 95 RON fuel without a remap as it risks overheated valves.

 

[Sgt Bilco]

Hilltop said don't run a free flow exhaust on 95 RON fuel without a remap as it risks overheated valves.

They would say that wouldn't they

They are right in what they say though and if you run a straight through system, you should do something to help the fuelling. I've tried all sorts of set ups and the 1200 boxer engine does like a bit of back i'e baffles in standard fuelling trim.

Power Commander or remap is the way forward

 

[Beemerman59]

seem to remember someone on here mentioning a similar problem that occurred only when he took the baffles out of the can, on replacing the baffles the problem did not re occur,
hth

That's probably me.... this is with Remus headers, Akro exhaust, K&N filter and Wunderlich fuel controller. Baffle out it stalls, baffle in it doesn't. I've been having the occasional stall for several years before I started with this set up. Might only be relevant to my bike and set up of course.

 

[Ali-bear]

Hilltop said don't run a free flow exhaust on 95 RON fuel without a remap as it risks overheated valves.

That is an alarmist and misleading statement. The BMS-K engine controller will detect pre-ignition and modify the fuelling or ignition to prevent it.

 

[litelfun]

I'm new to this, so please be gentle!

After fitting a full Remus system on my 2011 R1200GS recently, I find that the engine would sometimes cut out with the quick blip of the throttle when down shifting, for example say low speed in 2nd and then needing 1st: A quick blip to get the revs right would result in a sound like the pistons are hitting top dead centre and die. Not really clever if it is in front of the very traffic you are passing!!
It was suggested that a Power Commander could fix this, but I believe there is a similar system, but smaller also available.
Anyone that can shed some light?
If it is a Power Commender, which one do I get? Remus replied that they are only advising on cars!!! and gave me someone clever (NOT) to write to, but they also failed to give a satisfactory answer and just recommended Power Commander.

Please HELP. I'm about to give up on the Remus system.

ok I now when I just change or remove the bafel in my Akrapovic on my Hp2 its the same so heir is how you fix it !!! just disconecht the Baterie for a few minites I had the same allso on my R1150gs and it worked on that all so the air mass meter will reset itself to the new changes and its cheeper than a powercomander

 

[litelfun]

ok I now when I just change or remove the bafel in my Akrapovic on my Hp2 its the same so heir is how you fix it !!! just disconecht the Baterie for a few minites I had the same allso on my R1150gs and it worked on that all so the air mass meter will reset itself to the new changes and its cheeper than a powercomander

oh been runing this system for 32000 km now ! blew left side of the engine last year 2 exaust valves burt aut causing a lot of damage caused proberly from, wheeles !!!!!!

 

[Bendy toy]

That is an alarmist and misleading statement. The BMS-K engine controller will detect pre-ignition and modify the fuelling or ignition to prevent it.

Alarmist?

I dont think so. Aircooled engines dont handle hot exhaust temperatures as well as water cooled engines. Its also correct that exhaust valves are more highly stressed if the engine is run on a weak mixture. Its incorrect to say that automatically means a blown engine but scare tactics like that weren't used. Hilltop also said to avoid cheap petrol if using a free flow exhaust.

Popping on overrun is a sign of weak mixture (or an exhaust air leak). Mine did it a little with standard system, more with Remus headers and standard can and a lot with Akra free flow system. So unless they all leaked, its running weak by design made worse by the free flow systems.

The BMS-K ECU (like any other of today) avoids piston damage by retarding the spark timing. Posh petrol will spark earlier than cheap petrol and gets better efficiency. All well and good, but cheap petrol makes the same heat as posh petrol. The late spark allows less time to drive the piston, so exhaust gasses are hotter. If the fuel mixture is already weak they will be hotter still. BMW set the ECU map to run a weak air fuel mixture.

I personally prefer posh petrol because the engine feels more lively and I get the more miles per £. I'm planning to have it remapped but not yet researched who will do it.

 

[Ali-bear]

The hexhead boxers are oil-cooled around the exhaust ports, most likely for this very reason.

I think Hilltop or others are spinning you a load of horseshit. They clearly have something to sell and good luck to them. But I wouldn't trust my bike to their dyno or probably out-of-calibration exhaust gas analyser. It runs fine in standard trim in any case. If I wanted a faster boxer (which I don't) I'd get an R1200R most likely.

Anyway I'm off out for a ride