Extension of the central tube of the engine cradle.

For air filters are visible I must extend the big central tube on top of the engine cradle. I'll weld it an extension of at least 120-130 mm. The tube is 40mm in diameter. Whenever feasible I decide to do a sleeved welding for reasons of rigidity and strength. The locksmith next to the house is kind enough to offer me the two pieces of metal required in 40 and 37mm diameter.
I weld the sleeve on the frame.

Can I weld the extension and I wheel a bit .

I weld arc because it is the only material I have and the only technique that I know. The aesthetics of my welds is not "terrible" but I put the package and guarantee the solidity and then as I said I will Gland whenever possible.

Most of the welds on the frame will not be visible, their "beauty" is irrelevant.