hard to start when its cold

I have a 544 with a c-200 -- starts hard -needs a choke on a couple cyls. but only starts on on one then two then three and then four -- whats up with that -- the only tractor that i have with this problem -- when its real cold forget getting that one going -- after a good 30 min. worm up it runs ok --Deacon

1) Check the point gap. Should be .020".
2) Check the timing (0 at 375, 20 at high idle)
3) If you have a 12V coil make sure you have no ballast resistor.
4) Check the plugs.
5) Make sure the choke is closing all the way.

Replace the distributor cap

Check simple stuff first. Then head then compression .

As has already been said, begin with the basics. Make sure that the points, condenser, plugs, plug wires, coil, battery, and all associated wiring is in good order. Set the timing correctly. Then, make sure the carb. is operating correctly, clean and not plugged, fuel not stale, and there is adequate fuel. If the engine is in good condition, and all of the above items are correct, it should start and run well.

One must remember: these are very simple engines, ignition, and fuel systems, and were design for easy starting. You can say that it was an imperative. These old tractors were designed to be as easy and trouble free to operate as possible, hence their simple construction.

To illustrate the previous, I own the first truck I ever drove, a 1949 Ford F-2. This truck is all original, complete with a flathead V-8. Although the body is rough, mechanically I have alway been meticulous in maintaining it. The engine was last gone through some 23 years ago. In 2012 I decided to resurrect the truck after it had sat for 13 years. Knowing I did not want any hassles with starting or reliability, I very carefully went through the fuel, wiring, and ignition systems. The result is a truck that I drive back and forth to work everyday (which isn't far, 3.1 miles, don't want to wear it out). This past week, we experienced lows in the evening of around -16. On the coldest day, I had to employ a heat gun directed at the battery to get it to start, but it ran flawlessly. It also still sports a 6 volt system.

The point is, make sure that the ignition first, then the fuel system are at factory spec. and condition, and the old girl will run and start fine.