Question about 2004 BMW R 1100 S

1 Answer

COLD MORNING The bike is a r 1100 s . The ONLY time I have problems with the bike running is on mornings when the temp is below 65F. After letting it sit running (anywhere between 2 minutes to 15 minutes), I start out ok and then either the bike dies at a stop and won't restart unless the bike is in neutral, kick stand up and clutch in, or it starts loosing power as I ride down the road. If it looses it when I am moving, it will sometimes go from 4-5k RPM down to zero, then back up and down causing the bike to buck. This will usually go on for the first 3-4 miles of the trip, and then will work fine. I have had it happen the whole 7 miles into work though. For the initial start and warm-up, I have used the choke to start and then turned the choke off and let it idle (per the dealer's instructions), I have left the choke on so the RPM's stay between 2-3k (done for various amounts of time up to 10 minutes). I have tried riding with the choke partially on hoping to prevent it from dying at stops. Now for the kicker. I can let the bike sit from Friday after work to Sunday afternoon, and if it is warm out, it starts right up and is ready to ride with no more than a minute or two of warming up. I suspect I just need to take it to the dealer and leave it with him overnight, but I wanted to get opinions from others on the site before I do so. What might be causing the problems, and any ideas on solutions? I've had carberated cars many times before, and some were a little temperamental on cold mornings, but nothing like this

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 2,712 Answers

No doubt this bike is running very lean at idle. Thats the way the EPA wants it. Im a harley mechanic and i used to work in a US dealer. all carb bikes at set up time had the carbs "readjusted". We drilled out the EPA plug and turned the idle air screw out and drilled out the pilot jet too. The bikes worked much better. we were at sea level too so the bikes were very lean from the factory. I can imagine that after the new legislation that came into force they are even leaner and require a full warm up to run properly. Warmed up means you put your hand on the motors head and its hot enought to have to jerk it away. this could take more than a couple minutes. and yes our "readjustment" was illegal. i advice you to do the same.

Posted on Nov 20, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Motor starts then dies several times when cold

Sounds like the cold start solenoid. It is designed to keep the engine running at a set RPM until it reaches a specific engine temp.

Nov 22, 2014 | 2003 GMC Sierra 1500

1 Answer

I have a 1999 Nomad when I am riding down the road and my temp light will comes on and the bike wants to stall out, I let up on th ethrottle and teh light goes off, also when I hit a bump the same thing...

Symptoms of a bike running VERY lean. You should never have to ride with the choke on AT ALL.And running a bike lean,causes iit to overheat,and overheat FAST! Has the exhaust or air filter/box been modified? This is classic symptoms of an extremely lean running bike,and my solution would be to buy a jet kit,take the carbs off and clean them,install the correct larger jets,and synch the carbs. You dont wanna ride this bike like that,or you risk burning a piston.

Sep 27, 2012 | kawasaki Motorcycles

2 Answers

Unable to remove seat stem from frame - any sugguetions

Web search it "remove seat stem from frame ". Many postings.

Sep 05, 2011 | Mongoose Maneuver Mountain Bike

1 Answer

My 06 Road king runs really rough in the mornings. Backfires and has very little power.In the evening it runs great. Just had a new fuel pump installed yesterday. Told that was the problem. Evidently not....

Usually the air temp is cooler in the morning and more humid. I don't know virtually anything about the electronic fuel system in the bikes these days but I'd suspect one of the sensors connected to the fuel system. Your bike does not know what time of day it is. It may have a temp sensor on it though.

Jun 23, 2010 | 2006 Harley Davidson FLHR Road king

1 Answer

Seems like the battery doesn't have enough charge. I try to start using the choke and the lights dim and it start to roll over but nothing goes. It was started just this morning. It is cold out so I am...

clean terminals charge battery if it goes dead battery is probably toast .put volt meter on terminals while running should read 14.7 volts if not probably dirty magneto seek professional help

May 12, 2010 | 2001 Honda VT 1100 C Shadow Spirit

1 Answer

We have a 1986 honda shadow 1100, it cuts out when sitting in traffic, warm weather seems to effect this as it doesnt do it as much when its cold, we have just had the jets changed as the wrong ones were...

I would check charging system for proper performance, a bad volt reg. could cause increase in engine temp. does cooling fan come on and go off like it should.

Mar 27, 2010 | 2002 Honda VT 600 CD Shadow

1 Answer

MY nissan sentra spudders when cold. when i start it in the morning it revs up by itself. nisson is thinking it could be the timing chain, i have looked up the symptoms to this and dont think it is that. i...

You are right, if the timing chain were bad it would have the problem all the time , not just cold . This to me sounds like a coolant temp sensor . Hooking up a scan tool that can view engine sensor data , i would check the sensor parameters . most noteably the coolant temp an IAT - intake air temp. after sitting over night these should be very close.
Reading Performance Information Data PID Car OBD Diagnostics ECU Chip...

Apr 20, 2017 | 2003 Nissan Sentra

2 Answers

Starting The Bike On A Cold Morning

The heater will not work.Do you pull the choke cable?Is your carb assemblies cleaned and adjusted properly?I assume that your fuel pump works fine.

May 29, 2009 | 1988 Yamaha FZR 250

2 Answers

Rough Idling, start-up early morning, until engine heats-up


May 04, 2009 | 2001 Jaguar S-Type

1 Answer

Truck runs rough at start-up in the mornings

If this happens only when the engine is cold or cool, I would suspect a coolant temperature senor that has lost its calibration.
One way to check would be to have the engine controller scanned when the engine is cool then cold.
The coolant temperature should be the same as the intake air temperature. If the readings are not close to one another, change the coolant sensor.
The coolant temp sensor controls the fuel mixture when the engine is cold, normal or hot.
Good luck, let me know.

Apr 07, 2009 | 2001 GMC Yukon Denali

Not finding what you are looking for?
2004 BMW R 1100 S Logo

268 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Arnie Burke
Arnie Burke

Level 3 Expert

5065 Answers

Mike Gilbreath

Level 1 Expert

50 Answers


Level 3 Expert

81423 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides