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Hi Mike:
It's trying to make you crazy.
I have a model YT4000 and it is a PITA to start when cold.
I pull the air filter, toss in a bit of gas to prime it, and it starts instantly.
I'd suggest that you give yours another try. 3 or 4 times of a couple of seconds each. If it doesn't go, pull a spark plug and see if it is wet or dry. Wet indicates getting gas but no spark. Dry indicates not getting gas.
While you have the plug out, check the spark... Hot & blue.
Hope this gives you some more to work with.
Bad gas. Drain gas and refill with fresh gas with Stabil. Old oil. Drain oil fill with fresh 30w oil, 16-18oz. Clean air filter and spark plug.. Relpace air filter if dirty. Saving $$$ on this simple tune up is not intelligent.
Drain oil from mower until proper level. Remove spark plug and pull starter rope several times to blow out cylinder. Spray starter fluid in cylinder pull rope several times to clean out. Replace fouled plug with new spark plug. Remove air cleaner, ensure no oil present, replace filter as needed. Clean air filter box with carb cleaner. Install new air filter reattach filter cover. Prime engine, pull starter rope 1/2 way 4 times to help prime, then pull starter rope fully up to 10 times to start.
First, take the air filter off and spray a shot of carb cleaner/ starting fluid in the carb. If it starts for a second and runs on the prime then its a fuel issue. Check fuel filter, fuel delivery, and carb.
Ok your not getting fuel into the carburetor it sounds. This could be either your carb.needs cleaned or your low idle screw on the carb. needs adjusted. The idle screw is located directly underneath the air filter. Remove filter and turn clockwise all the way and then counter-clockwise 2 1/4 turns, then test. Adjust until it sounds about right.
what is the model, manufacturer and year of mower?
has any maintenance been performed on this mower?
if no, try replacing the spark plug and air filter (it's possible the spark plug could be fouled and/or the air filter is clogged) be sure to follow the manufacturers recommendations for oil, gas, filters and plugs.
Remove spark plug, clean and dry. Replace plug. Remove air filter. Spray WD-40 into carb opening; one second blast. Turn over engine, (pull handle). Engine should start briefly and run for 3 seconds. If not, you are not getting spark to spark plug. If engine starts, you have a dirty carb and you can buy a rebuild kit from manufacture.
has new spark plug and non-alcohol gas
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