Remove the spark plug wire from the spark plug. Wearing heavy gloves or usinf insulated piers, hold the wire about 1/4 inch from the engine block. Crank the engine in short bursts and look for a spark to jump between the end of the wire to the engine block.
there are 2 main reasons 1 the engine is not getting enought petrol 2 spark engine is not getting spark this is probley the cause the main thing that goes wrog with the spark is the ht coil replace this and the spark plug and your engine should start
The engine might not be getting any fuel. The engine may also have weak or no fire at the spark plugs. Check these two places to find the problem.
Does it have spark?, Compression? Timing?
first check each spark plug to see if your getting spark if there is no spark check the plug wires for any breaks in the wires also the distributor cap and rotor for wear or corrosion. also check the coil. if engine does have spark check to see if the engine is getting fuel if the engine is not getting fuel check the fuel pump. also check cylinders for compression.
If it's getting no spark, use a code scanner to see what the computer reports. Typically the computer will be able to detect electrical problems and tell you what's wrong.
every engine needs fuel, air, and spark. which is it not getting?
The easiest way to find out is to remove the wire from the spark plug and hold it about 1/4 inch from ground (the engine block is good) while someone cranks the engine in short bursts. If you are getting spark you should see a blue spark jump fromt the wire to the engine block. You might want to check all spark plug wires while you're at it. If you want to check the spark plug while you're at it, remove the spark plug and attach it to the end of the wire before checking for spark. If you get spark through wire but not through the spark plug, the spark plug is bad.
I am assuming that the mower doesn't start.... My first guess would be that you are not getting spark to ignite the gas in the engine. Check to see if you have spark at the spark plug.
take the number one plug out of the engine. plug the wire back on. place somewhere the plug will be grounded. have someone turn the engine over and see if there is spark.
engine may not be getting fuel pull the spark plugs after its been turning over and see if there wet with fuel engine may not be getting fuel pull the spark plugs after its been turning over and see if there wet with fuel
Place to start is to check to see if the engine is getting fuel and if it has spark
It means fuel is mix is not getting to the engine.