Why does the string on my pasture mower tug my arm forward?
Answers: Usually this is cause by the timing being bad. There is a key between the flywheel and the crankshaft expected to protect the engine in suitcase the blade hits something. It is made of a soft metal so that it shears easily. Remove the engine cowling, and the flywheel nut. Make sure to verbs the plug wire past its sell-by date because you may have to hold the blade to take the nut off. With the nut rotten you will be able to see the keyways and the switch. They must all rank up. If not pull the flywheel and replace the knob.
It has a spring within the top it helps to rewind the string. Sorry near is nothing you can do around it.
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