Overflow tank

[Ian]

After a tank drain and replace. How long have you found it takes to fill the overflow tank by letting it dribble over when filling up? I have been at the fuel station many times and am still wondering when the overfill will stop.

 

I always fill up with the side stand down so that the spill over is easier.

 

Ian

[Boffin]

The RT only has one tank. Are you refering to the ability to fill up past the filler neck? If so, removing the filler and drilling three holes near the top of the neck solved that one for me. Do not drill in-situ as there is a pipe for the filler recess drain wrapped round the filler neck.

 

Andy

[AndyS]

I'm not sure what you mean Ian? what overflow tank.

As you put fuel in it will just pour into any void available, and as it reaches the underside central backbone of tank it just pours freely over it.

On my tank, I have drilled a 6mm hole on the righthand side at the top of the side wall of the filler neck to allow air to exhaust more quickly when I am going for a maxi fill (to use on an immediate long distance run).

[Ian]

Andy/Andy,

 

I had thought that on the R1100RT the left hand lobe of the tank only got filled up through fuel spilling over during the very last part of the fill up but obviously I'm wrong.

 

Some folks even had posted the above as being part of the reason for the bike's weight distribution pulling the bike to one side during riding.

 

Thanks for reminding me about drilling the air hole. I had forgotten that thread.

 

Ian

[Boffin]

The lip into the left hand side is very low down, and normally never empties - in fact if you should run out of fuel on the road and feel strong, you can lay the bike carefully on its RH side which will give you a litre or so of fuel to limp on with.

 

Andy