1150GS wont starting problem

BigyellowGS

BigyellowGS

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Hope someone can help me!

I've got a 2004 R1150GS, which for some reason wont run properly..

The battery went dead after a couple of weeks stood, Once I rechraged it the bike will turn over and catch occasionally, might even run at tickover for a a minute or two, but the moment you give it any trottle it cuts out.

Now, I knew the battery was a little dodgy, So Ive just fitted a new one, along with two new plugs.

But I've got exactly the same symptoms.. catches sometimes, occasionally fires and runs (oddly) on both cylinders but wont rev up!

Any thoughts please... I'm desperate as my cars just died so the GS need to earn its keep for a few weeks!

:C
 
If you have removed the battery,check the throttle cable where it goes into the offside injector body for correct seating.
 
If you've had the tank off, it may well be that the throttle cable is sitting proud of the seat where it activates the throttle body on the o/s side of the bike
 
thanks for the tip... but alas I have already checked those..

It's really odd, like it not getting enough fuel/or too much...

the sparks are there... and nice fat ones too...
 
BigyellowGS said:
thanks for the tip... but alas I have already checked those..

It's really odd, like it not getting enough fuel/or too much...

the sparks are there... and nice fat ones too...
Click to expand...

Everything you describe in the 1st post is exactly as it would be if the throttle cables were hanging somewhere.


Check the other end of the cables. Where they go into the "cassette" under the battery tray.

Just to make sure, check that the throttle is against the stop on the throttle bodies, that'll confirm if the cables are hanging somewhere.
 
Okay... I've checked that:

1. the trottles are both sitting against their respective stops, and the cabbles are not obstructed.
2. There is plenty of oomph left in the battery
3. there are definatly sparks
4. The petrol pipes are all connected and they are not obstructed.
5. that i still get the same "priming" noises when I turn on the ignition as i always have!

But alas still no joy...

The bike will just about start when the fast idle is pulled out about half way, it will then tick over roughly for say 15>30 secs before dieing. If you move either the fast idle lever or the trottle even a little it dies instanty.

I've heard something about doing a "throttle reset" after a gs's battery goes flat...?? is this an electronic reset??
 
BigyellowGS said:
I've heard something about doing a "throttle reset" after a gs's battery goes flat...?? is this an electronic reset??
Click to expand...
Kind of.With ignition switched on (engine not started),slowly wind the throttle open,then closed.Repeat a second time and switch off.
You are supposed to be teaching the ECU the voltage range of the TPS i believe.
 
Cheers for the thought... I've just given it a try... but alas no luck..

I did however get a nice little puddle of unburnt fuel drip from near the lower exhaust bracket?

I'm realy stumped... I'll take the tank off again today and check all the connectors under there...

The other option is phoning my local BMw dealer and asking them to take the old girl away and give her a good servicing... oh and sort the fault out.

:D Any suggestions before I bend my credit card over infront of mr bmw?
 
Can you hear the fuel pump spinning up if you quickly tap the starter button or (perhaps even when you switch on)? it should run for 5 seconds, If not check connections and fuses / fuel pump relay before moving on to below

Twist the throttle open about a third and try to start it? Keep the movements slow but get the revs around 1500 to 1800 and just left it splutter and cough a bit til it get a bit of heat to clear crap in the cylinders etc etc. But just for 5 mins max in the open air!!!!

Never mind the fast idle thing leave it alone it's only a throttle stop to raise the idle when cold


If that doesn't work go and get a set of sparkplugs and fit them and try again, remember to check the gaps I used freelander ones in mine to help stop the surging :aidan :aidan :aidan
 
BigyellowGS said:
I did however get a nice little puddle of unburnt fuel drip from near the lower exhaust bracket?
Click to expand...

Water or fuel ?? dip your finger in and taste it.

Did you undo the fuel lines when changing the battery ? .

Do you have the Q/D fuel lines. If so undo them and redo them up. making sure you hear/feel the click as they lock.

If you don't have Q/D's, have you re-connected the fuel lines to the correct pipes.

Check for a pulse across the fuel injector electrical terminal as it turns over, using a test bulb/meter.

If the bike was running OK up until you changed the battery, it's something you've not done correctly, so just go back over it all again.

If necessary take the tank off and start the process all over again.
 
Thanks for all the tips:

No.. I didn't check it was fuel that came from the exhaust.. If it does it again I will.

I've taken the tank off and double checked everything, all connections etc... and double double checked that the cables are seated properly.

Basically the histroy is this...

Rode home about 2 weeks ago.. running fine.. no problems... Parked up on the drive, and covered the bike..

Went to start it again friday and the battery was flat, so I charged it up and tryed again... engine turns over but wont fire up.

Now its the 2nd time the battery has gone flat, and I've had odd abs light low volts issues for a while.. So I purchased a new battery and fitted it.. changed the plugs as well whilst I was doing things...

And the bike is still not starting..

Well... I need the bike sorting out and I've run out of time/experience (even with the great help from you guys)... So I need to hand it over to a professional... Any suggestions? I'm in witham essex... And who ever does the work would need to collect it.

Cannons at braintree can take it... but they are pricey... But if needs must...
 
Ask steptoe if he will have a gander at her. Borrow a trailer and nip it over to him ..... :)
 
There was a bmw ex mechanic over your way I used years ago.... Lou Crump was his name some body must know his details, I'll have a dig round my old bits of paper see if I can find his number, it may help.
 
There you go, don't know if he's still in the game but worth a try...01702232576 Hullbridge.
 
Thank you for all the advice...and guidence..

I have however thrown in the towel...

My missus god bless her has offered to pay for Cannons to fix, service and sort out the abs fault on the old girl for my birthday... Guess she's been syphoning off the housekeeping money... or maybe she's won the lottery? hmmmm

Anyway... I would have much rather fixed her myself... but this way I get none of the hastle.. and I may even get to take the bike round europe later in feb as planned!
 
It might be worth trying to re-set the ECU. You have to remove fuse 5 (or maybe 6 can't remember which so remove both) for a minute or so.

Replace the fuse(s). Switch on ignition and the cycle the throttle from end to end a couple of times, this to set the range from the throttle position sensor.

No guarantee that this will work, but I guess you have nothing to lose and it is quick and easy. Best of luck.

Regards to all,
 
Nippy Normans supply Touratech, Wunderlich, Desert Fox and many other makes of accessories.
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