Fuel tank conundrum

[85RZwade]

Looking at fuel tanks for my project: XS360 with one fuel valve, XS500 with two (one on each side). What do you think about a fuel valve for each carb...good, bad or indifferent? 

[m in sc]

my bike has 2. just needs a crossover

[85RZwade]

Whattya mean, boss? I haven't had coffee yet this morning...do both valves need to feed each carburetor?

[m in sc]

typically on dual feed tanks,  the lines connect from left to right at some point. this keeps the tank from starving one carb or the other. so, a t or junction is used to connect the halves. sometimes it's right at the carb. on my rd, the 2 lines come out and go to a junction block then feed back out to the 2 carbs.  so, it doesn't matter how you do it, but they should connect to each other after the tank fitting to some capacity.

[85RZwade]

Thanks, that makes sense

[pdxjim]

This is going on LC frame, Wade?

[Dvsrd]

If all else is equal, a tank with 2 taps should be better. Since the interconnect hose is after the taps, removing the tank is less messy. Single petcock tanks, like RD tanks,need a quick connect with shutoff in the balance hose. 2 petcocks is just a better solution.

[85RZwade]

Yes Jim, it's for the LC frame. I'm looking at an XS360 tank which is in very nice condition, has a single mounting point at the rear like the LC frame but doesn't come with a fuel valve or cap:
https://www.ebay.com/itm/1977-Yamaha-XS360-XS-360-Y668-2-red-gas-fuel-petrol-tank/293705403382

And an XS500 tank which is more beat-up, comes with both fuel valves, a cap and key but has two mounting points at the rear:
https://www.ebay.com/itm/1975-1977-YAMAHA-XS500-BLACK-FUEL-TANK-PETCOCKS-CAP-KEY-OEM-1A8-24110-01-09/253229561412

It's a toss-up. I like the value of more included parts and the dual valves, but less dent repair is also appealing. Leaning towards making an offer on the 500 tank.

[m in sc]

always the fuel valve is shit & plan on replacing regardless. go for less dents.   

[pdxjim]

You can get a brand new repop LC tank for about $400 shipped from Japan or UK.

[dgorms]

Wade, I might have a few options for you....................................D

[85RZwade]

I'm looking for a different shape than the original LC tank; looks like I need to get a front wheel under it for a trip to see uncle Dennis!