I have toro lawnmower model 20071 that will start but will die out within 5 secounds. i' ve changed plug, air filter and gas but it still is doing the same thing.
SOURCE: Trouble starting and a lot of black smoke at startup
Could be. Black smoke means too muck fuel or not burning properly. Also make sure your oil is not over full.
SOURCE: fuel feed
carby service 1 of the brass pipes or jets are blocked ,your looking for a minute pin hole so good luck usually a jet has 4 holes look for one near the thead
SOURCE: When I start my toro
Hi ldroth22..
Remove your spark plug and check to be sure you are getting fire at the spark plug, if you are then:
Check your fuel filter if you have one, normally they are located in the fuel tank.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a year old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float for the carburetor must be level when you go to reassemble the carburetor or follow the instrucitons you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their orginal position before you started.
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