I would like to know if anyone knows how to properly set up external gas tank to be able to run longer hours (looking at getting a 9 or 12 gallon tank) on a honda gx 340-390. Any help would be appreciated. Here is a link of what im looking at.
I thought about this too… I was going to buy a 15 gallon rectangular plastic gas tank with a filler neck, get the local welder to weld a frame over my machine, and use it and gravity fill my 390 when it came time to refill the tank. I’m not an engineer so I wasn’t planning on hooking it up to the gas tank. Just fill it so I could stop fussing with gas cans…
And then I decided that’s a heck of a lot a work and money to avoid filling the tank from regular old gas can. Next year I’m buying a larger, belt drive machine anyway. Large fuel capacity is on my wish list right there with electric start.
That is a huge liability the vendor and customer is taking. What happens when you don’t stop the fuel transfer in time? You can see in the the top. Little over flow and you have gas running onto the engine.
I spent days looking for a good way to do this since my fuel tank has 2 pickups but after a lot of research, even the guys that got it to work using after market pumps, etc. no one was particularly happy with the results and reliability. And since I don’t plan on keeping it forever and rarely use just gave up on it.