Second fuel valve

Seems that maybe I need to secure my image before I type in any text, for if I type text in first and then go for the image, I loose the text. Maybe I should have saved the text before leaving for Photobucket. Take care, Gerry
Now let me explain. I installed a three gallon Yamaha XT600 tank on my TW. Still wanting a bit more fuel I added a one gallon Tour Tank (could just as easily started with a 4 gallon Clarke tank). What I noticed by accident a couple of weeks ago is that if I left both fuel tank valves open (no good reason for doing this) the pressure in the Tour Tank would cause the front XT600 tank to overflow. For a short time, this left me in a bit of a panic for it was a warm day and my engine was pretty hot after running for many hours. All I need to do is be a bit more vigilent. But guess the bigger realization is "if you are going to mod, it behoves you to try and think ahead to deal with any 'issues' your mod might create".

Gerry how did you plumb in your extra tank? Maybe some sort of a one way valve would help.

Tracy

Hey Tracy. I had to fab a small brass tee so I could splice in between the front tank petcock and the carb (the new XT tank sits abit lower). Not enough room for a standard tee. I also have a valve inline from the Tour Tank. It should be pretty easy to remember to only open up the tank I want to use, just did not realize how "important" it is to make sure the other is closed. A one-way valve would certainly prevent that kind of problem but not sure where I would look for a small one-way fuel valve, and then, I am pretty sure there would not be enough room between tee and XT petcock. Gerry

We're currently building a tank that will be similar to your setup. I plan on installing the valve and Tee just like you did. I will also have to be careful to only run with one valve open. I'll use the upper tank first to get the weight off the back, then switch to the front.

Nice setup :thumb:

Hodakaguy

If you have a local boat repair shop, check the size & price on their 3-way fuel valves in place of the T-fitting.
That would allow only one tank to connect at a time.

Stephen, thanks for the suggestion. What I have noticed with the TW is the very limited space between the the stock tank and the carb inlet. I barely had enough room to install a secondary fuel filter. As I recall, those 3 way valves are relatively big, at least on scale with the TW. Guess I could have added longer fuel lines and plumbed the valve to a more spacious location and then ran the fuel line 'back' to the carb. This will be something I will keep in mind for the 'next time'. Gerry

I know this is an old post but....

Here's two cute little valves I have used before.

http://dratv.stores.yahoo.net/noname92.html




and this one

http://dratv.stores.yahoo.net/fuco2in1out3.html

Thanks rm, those are nice looking units and would have worked great. I have since gone to a 4 gallon Clarke tank and sent the 1 gallon Tourtank to Chopper Charles. Appreciate the information. Gerry