Roadie wrote on 07/23/08 at 18:23:06:

Good looking tank and a variety of sizes.

Is the rear mount the only option for these?

My ponderous personality is about all the rear end can take, can the tank be mounted up front?  Over the headlight?

verslagen1 wrote on 07/23/08 at 23:25:45:


One of us here has one mounted to the back luggage rack.  They ran the tube from the "keg" back under the pillion seat.  

Forget who did this.  Looked nice.  You have to purchase another petcock (which they sell seperately) to switch the aux tank.  If I was into long distances this would be the way to go honestly.  Alot of bang for the buck...

What kind of seat is on that yellow bike?

Seems like I knew at one time,but I forgot!
Need to write it down  

Yonuh Adisi FSO wrote on 07/24/08 at 21:09:36:


Aw...thank you! Now that youve said it....that sounds right

Ok the jury has returned. My panel of engineering experts which include you guys has come to the following conclusion to be implemented as soon as funding is procured:

1)the battery shall henceforth be relocated to an area in front of the downtube and place in a black powdercoated battery box of my design

2)furthermore a 2 gallon tourtank shall be purchased and located neatly in the area formerly occupied by the battery and stock airbox displacing in the process the stock side covers. The tourtank fill cap shall be sealed permanently to prevent overfilling due to gravity from the stock tank. Tourtank filling is to be accomplished via a reverse flow through the transfer tube and tourtank is to vent into the stock tank via a return tube to enter stock tank through a new port to be braized in place.

3)a Mikuni vacuum operated pump shall be installed to transfer fuel from the aforementioned tourtank to the stock fuel tank and simultaniously the carburator via a tee fitting installed between the stock tank and the fuel filter along with a shutoff valve to be opened at the time of engaging the "reserve"


The budgeting department is requesting a requisition form filled out in triplicate, and anticipates funding to be available within the next month.
Battery relocation, air fiter change and carburator rejet is to begin this  week. I will keep you guys posted and try to learn how to post pics.

Thank you for your input it was very helpful.

firedawg wrote on 07/27/08 at 08:09:32:




If the Mikuni vacuum pump pressure + the 'head' pressure of the main tank is more than the needle/seat assy. in the carb bowl is designed to resist, you may cause gasoline to push past the seat assy. and flood the bowl.  Remember, the seat assy. was designed to resist a set amount of fuel pressure.  Have you calculated the combined PSI of the Mikuni pump and the head of the main tank, and compared it to the PSI rating limitations of the bowl needle seat assy?  Also, if you are teeing the pump into the main tank, how will you displace the air in the tank as the vacuum pump pressurizes it? Assuming the cap is on, even if it is vented, it may not be vented enough to release air pressure as fast as the pump in transferring gas into it.  Under those conditions, the pump will try to then pressurize the carb bowl, which may overcome the needle.seat assy's ability to resist it, and flood the bowl.  Have you considered all of this?

firedawg wrote on 07/27/08 at 13:15:23:




How about taking digital pics of the steps you take to do this, and then posting the whole thing on the Tech Section?