Attaching Second tank - fuel flow?

[truslack]

Now as far as I am aware, if I connect a jerry can to the carb, no petrol will flow because of the vacuum it forms, right?

I had a bit of a weird plan to attach a 20l Jerry can to the back of my bike to ride down to Wales due to the abysmal 60mile tank range that the Senda offers.

Now this is the current plan:

https://i177.photobucket.com/albums/w215/impreza_2007/JerryCan.jpg

2 Pipes, 1 for air to go in (running up a pole - a foot high maybe) 1 for petrol to come out. bad idea? The Pole doubles up as a mini flag pole, do Welsh people get annoyed when people fly St George's cross?

Any ideas about how to attach the pipes to the jerry can?
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Current: Suzuki RG 125 Gamma, Honda H100, Triumph Tiger 800XC, Suzuki SV650 (minitwin)

[stinkwheel]

That'll work, most people just drill a small hole in the filler cap (which, being on top, doesn't leak too badly).

Read this and be awestruck:
Jerry can fuel tank
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[mattgirv]

Watch out where you attach it to on the bike though, I'd imagine that is a coppers dream to see you riding past with a jerry can bungied on to the back with tubes coming out of it :p

How were you thinking of fixing it to the bike?

[.....]

https://www.ncl.ac.uk/sparcle/images/English%20flag.gif

That's the English flag - You have St Patrick's Cross on yours (Ireland).

[truslack]

[stinkwheel]

Oh yeah, I breifly considered doing this on my KLE500. I was going to use a Honda C90 petrol tank which normally sits under the pillion seat of a C90 and has the advantage of being already equipped with both a hose tail and a breather.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[alone]

Here's what was suggested to me previously
https://www.bikechatforums.com/viewtopic.php?p=1351103#1351103

I ended up getting hold of the Acerbis 27l tank (for my F650) for £120. Get 260miles from a tank now, before reserve. Which isn't too bad. Gonna sell it again when summer kicks in a bit more
Then try sort myself a rig similar to the one in Resident Evil - Extinction..
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Bikes; '06 Triumph Sprint ST 1050 (for sale) - '95 BMW R1100GS

[tutton]

As said,
dont suction also use gravity?
just needles a breather, you could easily make your own, just drill a hole the size of a previous breather you get your hands on, and then put sum rubber o rings and stick them to the breather once its through the cap, then you have a professional breather lols.
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

[Kickstart]

Hi

You will need a breath hole in the petrol can as well. Otherwise the petrol will just sit in the can (air needs to get in to replace the fuel used, not likely to happen at any reasonable speed up the fuel line).

You will also need the fuel can to be at the same height at the petrol tank. The fuellevel between them will equalise, so it one is higher than the other then fuel will just come out of the breather of the lower one (if it is only a small difference then raise the breather on the lower tank).

There are limits on the amount of fuel you can have at home in a jerry can. However not sure whether that would apply, or whether a copper would put you through a lot of hassle to prove whether it applied.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[truslack]

[Kickstart]

[Bendy]

Couldn't you just pull over and fill up the bike tank from your jerry can

Simplicity ftw, an' that.

[mad4it028]

[Walloper]

And attract attention from all those helpful motorists out there who think you're a poor biker who has broken down.....
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W-ireless A-rtificial L-ifeform L-imited to O-bservation P-eacekeeping and E-fficient R-epair

[truslack]

[truslack]

I've settled on the tap method, and have a petrol can ready, anyone know of a place to source a 2 way petrol tap?

Thanks

Mark
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Current: Suzuki RG 125 Gamma, Honda H100, Triumph Tiger 800XC, Suzuki SV650 (minitwin)