Miller 250NT. Why won't it start?

There are several things that could be causing your Miller 225 with a Kohler CH18S engine not to get fuel. Here are a few things to check:

1. Fuel line - Make sure the fuel line is not clogged or damaged.
2. Fuel filter - Check the fuel filter to see if it is clogged or needs to be replaced.
3. Fuel pump - The fuel pump may not be functioning properly. You can test the fuel pump by removing the fuel line from the carburetor and turning the engine over. If you don't see a steady stream of fuel coming out of the fuel line, the fuel pump may need to be replaced.
4. Carburetor - The carburetor could be clogged or not functioning properly. You can try cleaning the carburetor or replacing it if necessary.
5. Spark plug - If the spark plug is dirty or worn out, it may not be creating a spark to ignite the fuel in the engine. You can try cleaning or replacing the spark plug to see if that helps.

Check your fuel pump lines in right place

Remove the gas tank shut off valve and clean it or replace it. The filter in it must be clogged.

I bet it's the gas. After some time the gas will no longer be volatile enough to start the car. Try draining all the fuel and putting in some fresh gas. Remember, when you try to start it again you'll need to get the new gas through the pump and lines before it will start. Also, check the condition of the injectors. Old gas can start to break down and build up a film that could be on your injectors (or clog your fuel filter- better check that too). Hope this helps.

blow air back threw the line towards the tank you have something clogging it or you forgot to turn the fuel on

Check age of gas. Cannot be more than 30 days old.
Make sure to use fresh gas w/synthetic 2-cycle oil @ 40:1 ratio (1 gal.) Gas to 3.2 oz. Oil). Do not use old or stale oil/gas mixture. Always use the proper oil/gas mix. If you do not, your engine will suffer rapid, permanent damage.May need to replace carburetor.

Fuel line could be clogged or carb is bad.

My first thought is to check the fuel pump operation.
Check to see if fuel pump is getting power.

This is how I check the pump.

Usually there is an in-line fuel filter that can be removed.
While its removed...bump the starter to see if gas shoots out the gas line.
If not, there might be a clog at the pump...or the pump needs replacing.

Hope this helps...

If there's water in the tank, you should drain it. Disconnect the fuel line and dump the water. While you're at it check the fuel filter, and replace it if it's dirty. Use some compressed air to blow through the gas lines and hook them back up. Put fresh gas in and see if that fixes it.

probally rust in the tank that's clogged the pickup filter in the tank or the fuel filter. or if you're in a cold climate, gas could be frozen too.