hey guys new to the site here. my buddy and myself are having a bike build off, who can make the coolest mini bike. well i washed my motor today to prep for paint and i found a crack on the clutch side above the crank its not quite into the webbing but its starting to. is this motor salvageable or is it complete junk? can this be jb welded? or tig. i had this motor layin around its a 3 hp horiz shaft briggs. thanks guys