BMW R1200 GS LC

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ollydog
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BMW R1200 GS LC

Post by ollydog » Sun Jun 24, 2018 5:56 pm

Gents, having just filled up in Wales with a full tank of fuel, immediately the bike began to miss fire on the button, hum me thinks it cant be the fuel straight off as the old fuel will still be in the system but did check the bill and checked with the attendant.

Limped along and then it cleared its self, got to work then on the way home the misfire the engine management light came on. I managed to clear this my manually reseting the TPS but it got worse. So change the plugs but not checked the clearances yet. Still won't rev at all and sort of ticks over at 2k rpm

Any thoughts

Steve

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Brads
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Re: BMW R1200 GS LC

Post by Brads » Sun Jun 24, 2018 6:00 pm

Empty tank and refill with what you know to be clean fuel.

Kinda too coincidental to be somit else.
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Re: BMW R1200 GS LC

Post by Tramp » Sun Jun 24, 2018 6:05 pm

Yep save fuel in a clean container, then use super unleaded... If its fine get trading standards to chexk your fuel sample... Was it a rural garage? Or mainstream supwrmarket..... Could be dirt in their tanks if low... So check your fuel filter too.... Hot weather causes condensation in tanks.... Always refill in cool air in morning...

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Re: BMW R1200 GS LC

Post by chunky butt » Sun Jun 24, 2018 6:14 pm

Got to be fuel surely, as already said, drain existing fuel and refill with fresh from a good source.....good luck ;)

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Re: BMW R1200 GS LC

Post by ollydog » Sun Jun 24, 2018 6:20 pm

Happened before in Wales on my R1, but managed to get 100m meters down the road before it went tits up and that time it was a plug, this time i was low on fuel so will refresh and check the filters, will keep you posted


Steve

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ollydog
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Re: BMW R1200 GS LC

Post by ollydog » Sun Jun 24, 2018 6:26 pm

Just checked, i don't this model has a fuel filter separate from the pump it may be a complete change, anyone know any different

Steve

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anthony29040
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Re: BMW R1200 GS LC

Post by anthony29040 » Sun Jun 24, 2018 8:37 pm

you haven't put diesel in by ant chance.open the cap and smell it,easy done.

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Re: BMW R1200 GS LC

Post by Rothy » Sun Jun 24, 2018 10:43 pm

Olly I’ve experienced something similar on mine the last month. It’s happened a few times and usually happens when the bikes takes an extra few seconds to fire up. I thought it was fuel at first but after it cleared it then happened again few week later after refuelling.

It would miss fire and felt like I was running out of fuel every time I tried to open the throttle and couldn’t get it over 50/60mph.

I think my problem is down to a fault on the exhaust flap and recently it must have started sticking maybe??

Anyway I’m booked in for service next week so was gonna mention it aswell.
BMW R1200GS LC

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Re: BMW R1200 GS LC

Post by ollydog » Mon Jun 25, 2018 5:16 pm

going to check the valves tonight not done for 9k miles

steve

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Re: BMW R1200 GS LC

Post by Hugh » Tue Jun 26, 2018 9:44 am

Greetings Steve,

I am not familiar with the nuances of your model of bike but two thoughts spring to mind, a blocked/kinked tank breather pipe or dirt in the petrol either from sediment being disturbed or introduced. There could be other reasons too but I always go for the last thing to be disturbed or the easiest to be checked.

Initially I would look for a breather pipe which might be a standard piece of pipe or an electrically controlled solenoid type valve. Second job would be to remove the pump for inspection and cleaning. I found this video which might be of interest;



Some injectors do have an inline filter which might need cleaning, check with a BMW service department.

TTFN

Hugh.

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