Want start Ferguson 20

Thanks

Start by check the spark. Pull the center wire out of the distributor cap, hold it near a good ground, turn on the ignition and try a start. You should have a FAT, BLUISH-WHITE SPARK. Same color as a LIGHTENING BOLT.

If you don't, then you'll neeed to find out why. The primary ignition circuit is the usual culprit with bad points( corroded or burnt), wrong point setting, loose or dirty connections in the wiring, damaged wire, bad coil, poor ground, wrong polarity on the coil, worn distributor shaft/bushing, etc.
If you have the requisite FAT, BLUISH-WHITE SPARK, then check the fuel delivery. These old tractors often sat for years inld barns or in blackbery patches out in the north forty and the tanks can be full of all manner of crap and corruption and rust. Open the tank valve full, get a suitable container to hold under the carb and remove the big plug at the bottom of the carb fuel bowl. The fuel should CONTINUOUSLY GUSH OUT LIKE A COW PEEIN' ON A FLAT ROCK FOR SEVERAL MINUTES. If it just dribbles out or is inermittent, check the screen in the carb fuel inlet elbow, the sediment bowl, the filter in the sediment bowl, look for a kinked fuel line, etc. If there is no problem in those areas, you may have to remove the tank valve after dring the tank completely. If that doen't do it, check the vent hole in the gas cap to make sure it's clear. Rap the side of the carb with a block of wood to see if the float is stuck. If none of that works, you may have to remove the carb to check and see if the float valve is blocked or there is sediment in the fuel bowl that's not allowing full drop on the carb float. Do all these checks systematically and write down what you find. If you find something wrong, fix it and try a start. If it starts and runs, you'll know that the last change fixed it.
Lastly, look in the archives. his question has been asked a million times and has been answered at least that many times.

Make sure all your electrical connections from your battery, all the way to your points, are clean & shiny. 6V systems are very sensitve to corrosion on the connections. Oh, make sure the inside of your dist. cap is clean, dry, and has no metal particulates from your rotor rubbing around on the dist. cap posts. All those things work against you by diverting valuable voltage away from your spark plug. Double check you point gap, too narrow a gap prevents proper build-up of your high voltage surge in your coil, and results in ....weak spark.
point gap = .020"
Also, watch your points when you crank the engine (with the dist. cap off of course). If your point gap is right, and you see a big blue spark jumping across your points when they open, replace your condenser. That spark ain't suppose to be there, it also reduces your high voltage build-up in your coil. More than one "new" condenser has been known to be bad... they are all made in China nowadays ya know.

George