The ground cable attaches to the motor mount bolt, or to the block itself, not the frame. Check it.
Wright uses a pretty heavy powdercoat that needs to be cleaned off when you attach any wires. I've had to do it several times when replacing solenoids etc.
The engine will run without a battery, its called flywheel magneto.
" But let me tell you something ,folks: You can't fix stupid! There's not a pill you can take, there's not a class you can go to. Stupid is forever!"