As fuel sits and evaporates, it loses some it’s combustibility. Fuel can go bad after a few months. I think you should just siphon the fuel and put new fuel in it. If you can’t siphon it you can disconnect the fuel lines, attach a length of fuel line going to a gas can, and manually engage the fuel pump, typically through thr diagnostic box, to drain the tank.

As fuel sits and evaporates, it loses some it’s combustibility. Fuel can go bad after a few months. I think you should just siphon the fuel and put new fuel in it. If you can’t siphon it you can disconnect the fuel lines, attach a length of fuel line going to a gas can, and manually engage the fuel pump, typically through thr diagnostic box, to drain the tank.