If you have a spark plug wrench take out the spark plug look at it if it is all wet engine is flooded with gas,dry it and clean it if it is dry its not getting gas, try putting in a new spark plug. is there gas in tank , is switch on, is gas turned off, is the tank full, is the gas old and stinky? has the tiller sat for months carb may be plugged check ,engine oil level, try a little shot of engine starting fluid or gas sprayed into carb needle valve in carb may be pluged, float in carb may be stuck. tap on carburetor good luck
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If you have a spark plug wrench take out the spark plug look at it if it is all wet engine is flooded with gas,dry it and clean it if it is dry its not getting gas, try putting in a new spark plug. is there gas in tank , is switch on, is gas turned off, is the tank full, is the gas old and stinky? has the tiller sat for months carb may be plugged check ,engine oil level, try a little shot of engine starting fluid or gas sprayed into carb needle valve in carb may be pluged, float in carb may be stuck. tap on carburetor good luck