When i start my typhoon it will idle ok for the first 10 seconds but then just shuts down and chokes out added fresh gas put a new spark plug and added very little fuel injector cleaner but still the same thing just idles little longer please help me if you can

First, you need to dump all of the fuel out of the gas tank, Preferrably into a gas container. If you know how much oil you dumped in, you can calculate how much more gas to add. You could also just dump the gas, re-mix some new gas and oil, whichever you prefer.

If you are comfortable doing this, remove the fuel lines going to the carberator and let them drain into a pan. Pump the fuel primer to purge the gas out of the carburator, and then re-install the fuel lines. This might help you get it started a little faster, but its not necessary. You can burn the old gas in the engine at it will be fine.

Next, remove and replace the spark plug. Its probably fowled out with too much oil. Keep a can of carb cleaner and a small wire brush handy, you may need to clean the spark plug a couple times. If it gets too dirty, you can replace the spark plug with a new one. Do not burn Carb Cleaner in your engine for long periods of time, it will damage the engine.

After you have installed the spark plug and put some correctly mixed gas in the tank, Try to start the engine again. There will be some residual fuel in the fuel lines going to the carberator, so you will need to burn off that gas.

If you can't get it to start, try these steps:
Choke off, throttle wide open, crank several times. (or let it sit in the sun for a couple hours) (this corrects flooding)
Prime carberatur, Choke full on, throddle idle position, crank until it fires once but does not start.
Choke half, crank until it fires again or starts.
If it starts skip this step: (Choke off, crank until it starts).
Keep the choke on half for about 10 seconds and let it idle.
Put the choke off and let the engine warm up for a couple minutes.
After warmup, test the throttle to see if it will run at full throttle (it may take some fluttering until the engine is fully warmed up)

Let the engine run at full throttle for a few minutes. The exhaust may be a little more blue-smokey than normal...this is the excess oil burning...totally normal and harmless.

Your problem could be one of several things.. A bad spark plug, bad gas, failure to lower the idle and let it run a few seconds prior to shutting it off, unadjusted valves, etc.

I'd start with the plug and some fresh gas, then go from there. Always idle the engine down for a few seconds before shutting it off. This allows all the gas in the combustion chamber to be burned up preventing backfire.

If there is a choke adjustment you should set that at full until the trimmer warms up, don't touch the gas. Then repull start at half choke, don't touch the gas either at this time. Then start at no choke, and then set your idle on the carberator with the adjustment screw. Also don't push the primer bulb so many time you will cause the spark plug to get flooded and drown out the spark, which is exactly what is happening.

could be bad gas, but it sounds like a choke problem. did it sit over the winter with less than a half tank of gas in it. try putting some rubbing alcohol in the fuel or draining the tank and disconnecting the gas line so you can drain the gas out of the carb. also check the gap of the spark plug and make sure that is correct. when was the last time there was fresh oil put in. also check the air filter, it could be full of dirt.

Has it been sitting around for a while not being used ?
If so I would dump the fuel out into an appropriate container and fill saw up with a fresh mix of fuel. I also ALWAYS put in about a cap full of SEA FOAM.
Make sure spark is nice bright blue, if not install a new plug.
Now pull on the choke, pull it once or twice, and shut off the choke.
Now does it start ?
If that does not start, I would pull the spark plug, drip a little fuel mix in, put plug back in torqued to mfg. specs. and see if it fires now ?
Please let me know what happens.

You may need the carburetor adjusted or rebuilt. The other possible item is "bad gas". If the gas has been sitting around longer than 30 days, it may be time to mix up some fresh fuel mixture.
HTH
Good Day.

Replace the Spark Plug. Drain the old fuel. Mix to the right ratio a new mix of fresh gas and oil. Prime, choke and start.

From your description, it sounds like your carb is running too lean. Make sure the spark arrestor screen is free of carbon build-up and the air filter is in place. Warm the saw up. With the saw at idle, adjust the Low adjustment screw to slightly enrich the mixture. If you turn it to run the fastest possible when idling, it is too lean. When the Low setting is right, you will be able to increase the RPM without it dying. If the High setting is way too lean, it may also die when you open up the throttle. If you run the saw too lean, it willl overheat and sieze.

amiseybold;

First check for spark. Remove the spark plug. Leave the spark wire connected. Hold the plug against the metal of the mower engine so you have a ground and can see the gap of the electrode where the spark jumps across. Have someone pull the starter cord and verify that you have a spark. Hold it by the threads of the plug so you don't get a little spark jolt yourself.

go to an auto parts store and get a can of starter spray (it's actually ether), Remove the lawnmower spark plug and spray a little ether in the plug hole. Put the plug back and tighten it and see if it starts.
It will probably start, run for 5 or 10 seconds and then die. Repeat this procedure once or twice again and eventually it will start to draw gas from the lawnmower tank.

A seasonal tip. when you put the mower up for the winter, **** the remaining gas out of the tank, start the engine and let it run until it uses up the gas in the carburetor. This will make iot much easier to start in the spring

Hope this helps Good Luck Loringh PS Please give me a rating

There is a small diaphram on the side of the carb that simply wears out. It's rubber coated mesh and the rubber coating breaks down and it stops pumping fuel into the carb. Sometimes you can run with the choke on partially, but it will burn 10 times the amount of fuel and cause more damage to the engine itself. I think it's about a $10.00 part.