Maybe a generator and a battery charger if you do not have access to commercial power. Neil already mentioned jumper cables. A can of starting fluid may help with initial start-up, As dependzic stated be sure all the fuel lines are cleaned of gunk and clean fuel is flowing.
 

to make life easy after cleanin any debris and vegitation away drain the fuel tank on the pilot engine and the carb with bad fuel it will never start. fresh fuel does wonders. and i second rays suggestion about wasp spray for some reason they love yellow equipment maybe they think its family or something

yes, definitely have a jug of fresh gas for the pony, give yourself a fighting chance....you might have to take this in babysteps....win a few small battles...

When I have revived an old machine that has sat a long time, I have been most successful using kittyman's approach. The first thing to verify is that both engines are free and turning complete revolutions. Common hurdles I've encountered include stuck linkages/pivots, no spark - often remedied by cleaning points in magneto, fuel supply issues to starting engine. Items that come to mind that I've often needed when tackling these projects are cork gasket material for when the sediment bowl leaks after you clean it, spare fuel hose incase you can't get fuel from tank to starting engine, something to clean magneto points, 20 litres of diesel engine oil - you can use it in everything from the oil bath air cleaner to the injector pump. If you don't already know, it's worthwhile familiarising yourself with timing the magneto should you need to remove it for any reason. Depending on which model of D7 this is, sometimes it's difficult to perform any work on the magneto without removing it. The simplicity of these old machines is fantastic, a lot can be done with minimal basic tools.
Good luck, saving these old tractors from the melting pot can be most satisfying.

Hey all…

I finally was able to get the serial #.

9G7020W

Can you all help me track down a carb (or carb kit) and a magneto?

In talks with the owner, it sounds like the mag switch had been bypassed. Any thoughts?

That makes it a pre WW2 model. No big deal about the mag switch. It was decided it was better to shut the gas line down and kill them that way. As vibrating and general bouncing around bounced the float around letting gas get in the cylinders and leak into crankcase and dilute the oil. Keep a plastic handle screw driver handy if you think you might want to kill the pony quicker than running out of gas. Ground the stud out of mag (where the wire would attach) to the engine.

Your D7 uses a Zenith model 22AXB carburetor. Search on line for kit.
Original magneto is an Eisemann Model RC2Q. Can be replaced by Wico XH2837S or XH1906 or American Bosch MJK-4/2-180 311

@neil

Thanks for the reply!

How do I post a picture on here. I can show you the best shot I have of the wiring.