lights work

I recently bought a used Suzuki marauder 125cc, it was running fine, as fine as a cheap used bike will run, i rode it for like 200 miles on one filling of fuel but today i went to fill it up at the petrol station and filled it up, (i don't know if i fiilled it up too much, this is my second time...

Last week I bought an '82 Honda Nighthawk 650 from a guy and started it up and it ran fine. I let it sit for one week and this weekend I started it up and rode for a bit. When I stopped it and tried starting it again, the engine would turn over but wouldn't start. I rolled it back to my place...