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no spark
- Thread starter christoff
- Start date
What about the Woodruff key on the crankshaft/flywheel?
If it shears, you get no spark.
Hitting rocks, stumps, roots, big sticks, etc, will cause damage to the key.
Do both the flywheel and the crankshaft turn when you pull the starter cord? If not, you likely have a sheared woodruff key.
Sheared woodruff keys are a common cause of "no spark" on walk behind mowers.
If it shears, you get no spark.
Hitting rocks, stumps, roots, big sticks, etc, will cause damage to the key.
Do both the flywheel and the crankshaft turn when you pull the starter cord? If not, you likely have a sheared woodruff key.
Sheared woodruff keys are a common cause of "no spark" on walk behind mowers.
Credit card too thick. .010". Also there is no woodruff key connecting the crank and the flywheel, it should be a softer square key. Also, you must torque the flywheel nut properly, or you will shear the flywheel key while trying to start. Again, you must set the coil air gap at .010.