I´m i´m in Creel, Mexico, and my bike is running pretty bad.

It´s a 2003 GS 1150.

It dies almost every time it goes to idle. It looks like a bike w/o fuel injection, like the old carb bikes, when the altitude makes difference on the performance. (I´m at about 7.000)
Very odd for a fuel injection bike and since I dont understant much of mechanics I would like to ask for help on this forum.

This is the full report:
Was running fine when using gas 91, first gas was in USA, second was Premium, in Mexico
Then the third gas the 91 was not available, so I have to use the normal one, from a Pemex source (not those that they seel near the roard)
I had about 4 gallons of good stuff, then I fill the not so good stuff (5 more gallons of mixed) (11gallon tank)
After about 70 miles the bike start running baddly.
at every ´tope´ (the mexican speed bumper), the bike almost die when I resume accelaration.

If I resuem gas on any gear, it ´coffs´ baddly and ask for a lower gear.
I have to keep it over 1500rpm or it will die.

I tought I had a bad gas, so I stop after 130 miles and filled up with the good stuff again (91) with about 3.4 more gallons.
Still the same.
I noticed that if I stop the bike for few minutes, then turn on again, it will run fine for about 5 minutes then will start acting funny again.
It has new spark plugs (BMW) and I changed the fuel filter just before this trip.
Any advise?
I´m not sure when I will be able to check it again, but I will try tomorrow.

There is no internet here on my room, so I´using this cafe, that will be closed tomorrow (sunday)

If you happen to be here in Creel, I´m on the Magaritas Hotel, the one on the Cruzeiro street (yes... there are 2 Margaritas Hotel)

Thank you for any ideas.

Oh I really miss the 'tope's- not!

Well I'd be quite sure it's not the fuel quality as I put any old crap in my 2001 GS1150 on my trip and never had problems like that. The altitude should not affect it much either so I'd suggest getting it looked at. Trouble is you would need to find a Beemer place to plug it in to their machine which would hopefully tell you whats wrong.

When was the last time you synchronised the throttle bodlies as they can go out over time and cause poor running? Also is your idle speed correct, ie around 1100 or so rpm? The dealer in Quito had stupidly set mine at around 800rpm and it always wanted to stall before I took it back and got them to do it right, even though they insisted it was ok.

This site seems to have a list of about 12 BMW places in Mexico:
BMW Motorrad México

good luck!

__________________
Mike


www.singapore-scotland.blogspot.com
www.argentina-alaska.blogspot.com
My little Vid: India/Pakistan

BMW R1150GS
Suzuki DR650 SE: Ride it like ya stole it. Oh, somebody just did...

I'll second what Mike says. R11xx can pretty much eat bad fuel, down to 80 octan leaded, like I did in Iran. Mine only did some valve noise that was noticable if very hard acceleration at low-RPMs.

Maybe start with a throttle sync as said, make sure the both throttle cables are properly seated in on the throttle bodies, reset Motronic. Check the spark pugs colour for some signs of carbon build up and fuel mixture. If this doesn't help then just in case you can check if the Hall sensor plate is fully fixed under the alternator belt's bottom pulley. Just guessing...

Keep us posted how it goes.

I've done some reading for you and all I can say is pull over empty your tank completely check your fileter, and then refill with the good stuff. Might be water in the mixture, might be blocked filter, but start with the fuel and then work from that point.

Hope that can be of help.

It might be fuel starvation , check your filter for crud , the hose routing for kinks and the tank vent .
Always look for the simple stuff when ,an otherwise reliable bike, begins to play up .

__________________
Blessed are the cracked, for they let in the light. - Spike Milligan
"When you come to a fork in the road ,take it ! When you come to a spoon in the road ,take that also ."

gotta be the filter or water as others have noted. good idea to drain and start over with good stuff. in remote areas use some STP or other octane booster when you fill up. it worked wonders on my FI Dakar in Bolivia.

__________________
Allan - WorldRider
2005 - Adventure & Discovery - 2008 http://www.worldrider.com

As typed before....filter.