Andy Davies
Registered user
Mod done by on my bike by Dutch and latest mileage on a tank is 230 on the clock with 60 to go to empty. Just the job!
Andy
Andy
'Must do' fuel tank mod
- Thread starter Tim Cullis
- Start date
Dutchman
Registered user
Bob's yer uncle said:Especially if you live in a warm climate, this mod is not really advisable,as the fuel expands and flows over even on the centre stand, and with current fuel prices...
Last year in Italy we rode/fuelled regularly in temps of 40deg C+.... my experience is that the fuel rarely has the opportunity to get hot enough to expand as the painted panels are over half an inch away from the somewhat thicker plastic of the tank itself.....which acts as 'insulation' if you like......especially if you have a tankbag as well.....
Still took the usual precautions of not leaving in diect sunlight immediately after refuelling or riding a few miles before stopping again but the overall benefits of extended range far outweigh theoretical difficulties on the odd occasion the ambient temperature here reaches double figures....
Cheers
Dutch
walti
Registered user
Dutchman said:
Filled mine up for the first time after doing the mod today...
Then left it for a while - a definate smell of petrol about the place, and when I opened the filler cap it had a spurt at me! (Note to self: fill up on the way out not the way home!)
The improvement in filling up by far outweighs the slight downside of "having" to ride the bike a bit more!
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At a rough guide of 10-12 miles per litre, you don't have to go far to create an air gap. My record is 284 miles on a tank, with more than 23 litres put in at once--shows how empty the tank was!
Just think how many miles a 12GSA tank would get you.
Tim
Just think how many miles a 12GSA tank would get you.
Tim
...finally, somebody speaks sense. Just a bit of common is required - don't fill it up, then leave it in the baking sun. If you're going to do that, don't top it off. Simplewalti said:
B Murr
Registered user
Dinger said:
How does that work? I know that if unburnt fuel gets into the cat it can cause it to overheat and meltdown but this seems like a different scenario.
Apologies if it's already been covered - what is the purpose of the rubber inner sleeve/ tube at the bottom of the filler neck (that you can pull out with your finger)?
Just wondering why BMW fitted it in the first place.
Just wondering why BMW fitted it in the first place.
Stormchaser, perhaps to make it difficult to mistakenly fill it with diesel?
harry said:
Ahh, so it's all to do with the size of your nozzle...
I'll get me coat
Big John
Guest
Fuel Mod In Hot climate
Regards
Big John
I have had this mod done for the last 12 months in Australia. Last weekend fueled up to the drill holes in the filler neck (23.2 liters from empty) then left in sun while having lunch. I always leave the filler cap just open after a max fill with the key flap up to remind me to close when taking off. The temp gauge reading was 47 degree celius with no fuel leaking from the over flow pipe.
Regards
Big John
Gonz
Guest
I'm giving serious thought to doing this to my GSA.
At a risk of a thread hijack, does anyone's over flow tube actually work. On my previous GS (and I cleaned the tube) and this GSA the fuel overflows and runs down the outside of the tank.
Even with the fuel cap open, if I over flow on the fillup, the fuel sits in the channel ontop of the drain hole, BUT DOESNT DRAIN.
My 1150 used to.
Anyone else?
Gonz.
At a risk of a thread hijack, does anyone's over flow tube actually work. On my previous GS (and I cleaned the tube) and this GSA the fuel overflows and runs down the outside of the tank.
Even with the fuel cap open, if I over flow on the fillup, the fuel sits in the channel ontop of the drain hole, BUT DOESNT DRAIN.
My 1150 used to.
Anyone else?
Gonz.
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