Welding Tips and Tricks

With that small machine, I'd try some pre-heat to give it a little help.

Okay, I mean these plates are 48" X 76" and the seams are the 76" seams, multiple ones so its not going to be all that easy to pre-heat, I will be Tigging in there which will definetley warm up the plates

You can still pre-heat around the joint. Any heat you can add to the aluminum in the area of the weld will help. It will be less area for the welder to heat up so your starts won't be so cold.