I don't know how any weld issue is related, but my 2018 ATAS had to have the pump replaced due to what appeared to be paint over-spray being softened by the fuel and plugging the filter and killing the pump. That is consistent with a number of others I have corresponded with. The shop said mother Honda told them that some of the L2 models seem to get "something" in the pump and filter. Something! Riiiiight. Took me all of 30 minutes online to find out what the "something" was. Mine runs great now.
GL1800A, KLR 650, ATAS, 1972 CT2 Cessna Skylane
Fly low, fly high, but fly!