1150 GSA Fuel Tank on standard GS

clivewhilde

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Just fitted a GSA fuel tank to my standard 2002 1150GS and noticed that there are two small metal pipes welded to each side of the tank on the inside near the botttom, they are about the size a fuel line would fit.

The standard tank doesn't have these, any idea what they are for or where they go on the GSA. Don't want to fill it up until I know!

Any pertinent advice gratefully recieved.

Cheers
 
Don't fill it up yet!!

They're for a link pipe to join both lobes of the tank, use a quick release connector on one end
 
They're for a balance pipe to allow the fuel to even up so that you don't end up with the left lobe full of fuel and the right lobe empty, stuck at the side of the road and wondering if you really want to chuck the bike on its side to get to use the remaining litres.

Just join them together with fuel pipe and you will be fine. Use quick-disconnects if you can or you're going to really regret it the next time you want to take the tank off and it's full of fuel ;)
 
They're for a balance pipe to allow the fuel to even up so that you don't end up with the left lobe full of fuel and the right lobe empty, stuck at the side of the road and wondering if you really want to chuck the bike on its side to get to use the remaining litres.

Just join them together with fuel pipe and you will be fine. Use quick-disconnects if you can or you're going to really regret it the next time you want to take the tank off and it's full of fuel ;)

Thanks Lads, is just one quick-disconnector needed i.e. does it seal in both halves?
 
QD's seal in both directions, so you only need one. You might as well put them on the other fuel lines at the same time, while you're at it. Just put them on in opposite directions so you never get the tubes mixed up and you don't have to label them.
 
They're for a balance pipe to allow the fuel to even up so that you don't end up with the left lobe full of fuel and the right lobe empty, stuck at the side of the road and wondering if you really want to chuck the bike on its side to get to use the remaining litres.

Even with the balance pipe you still have fuel unused on the L/H side when the tank is "empty", so you can still tip the bike over if need be, :D
 
Ovbiously the balance pipe goes under the altenator through the bike (hence the QD) and not over the "hump".
 
Ovbiously the balance pipe goes under the altenator through the bike (hence the QD) and not over the "hump".

Steady on mate, he's not a 1200 owner who'd more than likely thread it through the back wheel:D
 
Steady on mate, he's not a 1200 owner who'd more than likely thread it through the back wheel:D

steady on, a 1200 owner would be stuck at the side of the road broken down and therefore where the pipe goes and how much fuel is in the tank is of no consequence
 
Link pipe

Don't cut it off too short a bit of slack makes it much easier to use the Q D connectors.
 
Ovbiously the balance pipe goes under the altenator through the bike (hence the QD) and not over the "hump".

If you've the later short type of alternator belt fitted you may have to remove the belt and raise the alternator to enable you to fit the QD under the alternator body. Great foresight by BMW :rolleyes:

If so it might be worth your while fitting a Q/D each side of the link pipe. :thumb
 
Even with the balance pipe you still have fuel unused on the L/H side when the tank is "empty", so you can still tip the bike over if need be, :D

now, I thought that too. After running out of fuel on a french motorway a while back on a r850 I've loved the idea of the 'bit on the side'

Well, I'm not sure about the spare fuel now! I pulled up beside that new four litre bmr racing crotch rocket recently with next to no fuel...my bike got envious and promptly cut out due to fuel starvation. So, I lent it on it's side and picked it back up. Smug in the knowledge that I could ride the last mile home...it was hot that day and I sweated all the way home, pushing it uphill. Don't rely on the spare fuel:D btw, I filled up completly then and put 29.75 litres in. I'd a litre of fuel in the garage...
 
now, I thought that too. After running out of fuel on a french motorway a while back on a r850 I've loved the idea of the 'bit on the side'

Well, I'm not sure about the spare fuel now! I pulled up beside that new four litre bmr racing crotch rocket recently with next to no fuel...my bike got envious and promptly cut out due to fuel starvation. So, I lent it on it's side and picked it back up. Smug in the knowledge that I could ride the last mile home...it was hot that day and I sweated all the way home, pushing it uphill. Don't rely on the spare fuel:D btw, I filled up completly then and put 29.75 litres in. I'd a litre of fuel in the garage...

I've only had to do it once (successfully) with my adv tank , and seen blowzorn of this parish do it twice on his ADV.

You really have to lay it on it's side properly, not just lay it on the rocker covers :D
 
...it might be worth your while fitting a Q/D each side of the link pipe. :thumb

Definitely a good suggestion as threading the pipe through each time is a real pain. The QD connector makes it a bit tight to thread back through & the tank being in the way makes it even worse. A QD coupling at each end means you can leave the fuel pipe in place & just clip it together when you put the tank back on. Likewise, reversing the two in the supply/return lines so you don't mix them up is another very good one...
 
Just come back from a weekends camping and on the doormat from motorworks is a single platic right angle QD fitting. It'll do for now as I'm off to the Sachesenring on Wednesday but I'll be sure to get a pair of metal ones for later. Thanks to all. :clap:bow
 
Just been looking at Motorworks online catalogue and I can only find straight QD fittings (in plastic).
Also I can only find metal male fittings, the female appear to be only available in plastic. Is this correct? Does anyone have the part numbers for metal female QDs and also for right-angled QDs?
Cheers,
Mick

(edit: spelling)
 
Just been looking at Motorworks online catalogue and I can only find straight QD fittings (in plastic).
Also I can only find metal male fittings, the female appear to be only available in plastic. Is this correct? Does anyone have the part numbers for metal female QDs and also for right-angled QDs?
Cheers,
Mick

(edit: spelling)

ive just dug this out ............ check before ordering though (manchester area i think)

company name omega 0800 488 488/ 0161 777 6611
part no ftlcd 17006 female
ftlcd 22006 male
for a right angled one the lads on the rsvr site will have the part no. beware there expensive.

Hman.

ps, those p/n are a few years old.
 
I got mine from beemer boneyard in the US, I think I payed about $100.00 for them, great service from them :clap and they threw in extra O rings for free :thumb
 


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