That's gonna be a tough one .
High quality welders are not cheap . Silver solder might be better or a I think it's called a studi torch .
Full disassembly plus some probable machine work .
Or at the least good hand mill and dremel if it doesn't warp the stack face .
it can be done,have done it with the mikuni several times and with the smaller tilly carbs,carbs must be fully dissasembled,clean prep right before welding is cruical.
