22″ Yard Machine Push Mower

Experienced gardeners share their insights in answering this question :
First put new blade on. if it still pulls back change the keyway , it has bent it causing it to be out of time. it kind of easy to do just don’t beat the treads up on the flywheel while tapping on it and prying up with a pry bar. i use spray to loosen the flywheel. let it soak about 15 min. happy mowing sawdust46

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

A lawnmower engine commonly kicks back when the shear key breaks. The shear key commonly breaks because the blade has kit a solid object and come to a sudden stop. Common symptoms of broken shear key include: Engine won`t start.
Even something like a slightly bent blade can quickly damage the engine and body, not to mention destroy your lawn. There are a few signs that point to a bent blade — an uneven cut, bumpy handling, strange grinding noises and the mower stalling.
Kickback, the result of a mechanical fault in a cylinder of an engine which fires before the piston reaches the top. The piston then goes backward while the other pistons in the other cylinders are still going upwards.
The operator pulls the rope`s handle or grip. This causes the rope to unwind around the crankshaft and spin it. The spinning motion of the crankshaft cranks the engine. The crankshaft`s motion engages the flywheel, enabling the engine to start.
What Causes Chain Saw Kickback? There are two circumstances that can cause kickback when using a chain saw. The first occurs when the moving chain at the tip or the nose of the guide bar strikes an object. The second situation is when the wood closes in, pinching the saw chain in the middle of the cut.
Check the drive control cable when your lawn mower won`t move because the drive cable can stretch over time. Replace the control cable if it`s damaged. A worn or broken drive belt will also prevent the mower from moving so check the belt next. Adjust the drive belt or replace it if it`s broken.
Since the effective weight of the lawn mower is lesser in the first case pulling the lawn mower is easier than pushing it.
Backfire, or more accurately “after fire” when it occurs when stopping an engine, is caused by unburned fuel/air mixture being ignited by the heat of the muffler.
Tilt the mower onto its side so you can access the underside of the deck. Inspect the spindle for any signs of damage, such as cracks, breaks, or bending. Check the bearings for wear by moving the blade up and down. If there is any play in the blade, the bearings may need to be replaced.
A pulley that is binding will cause the lawn tractor to jerk forward. To check for a binding pulley, start by disconnecting your battery, and remember to start with the negative cable first. Now you can remove your mower deck. Remove your drive belt and check the inside condition of the pulleys.
In this case, the vertical component of the applied force acts in the direction of the weight of the mower. This the effective weight of the mower. Since the effective weight of the lawn mower is lesser in the first case, pulling the lawn mower is easier than pushing it.

Discover Relevant Questions and Answers for Your Specific Issue

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I hit a rock and bent the blade on a yard machine. Replaced the blade and tried to start the mower, but the start rope doesn’t come out all the way and recoils hard as I’m trying to pull it out.
ANSWER : I did the same exact thing over the weekend, try adjusting your new blade unscrew the main bolt to the blade about 1/2 turn that should get it spinning again, same exact thing happened to me. Good Luck

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My MTD yard machine has a briggs & stratton motor. It is having issues starting up. Whenever the battery has juice the mower tries to start itself repeatedly even without a key in the ignition. I disconnected the ingition switch and it still tries to start up. If I let it try to start for too long it will start to smoke from the ignition on the motor. The other odd thing is that when it tries to start it moves the blade as well even with the blade in the off position or if hold the blade safety switch down my self. Also, before it started trying to start itself it wouldn’t make any attempt to start unless the blade was pulled back further than off. Any Ideas what is wrong?
ANSWER :

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Pull cord is difficult to pull after third pull becomes stuck but will turn if pull hard repeats every three to four pulls.
ANSWER : No response to clarification request.

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I have a toro self propelled 6 hp lawnmower battery and pull start it wont start with battery but will with pull cord
ANSWER : Try to start it using jumper cables to boost it from another battery. If it starts, your battery needs replacing.

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Why my blade wont engage on my toro 74370 zeroturn mower
ANSWER : It has an electromagnetic clutch switch on it,that is more than likely bad. Try this,pull the pto switch out and start the engine,then disconnect the 2 wires coming from the switch and just tap them together and see if they will come on. If they do then you need to replace that switch.

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My chainsaw starts when there is no bar and chain on it but when I put the bar chain and side casing back on tighten the chain and pull the starter cord it is hard to pull and then the chain goes loose again
ANSWER : Have you just replaced the chain?If so there is a possibility the chain and drive sprocket don’t match causing the engaging spurs to ride on the sprocket teeth

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When i pull the starter cord it pulls back really hard
ANSWER : Pull off the spark plug and spray wd40 wait 15 min to 30 min and then pull without spark plug in then put the spark plug back in and then try it

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I can’t start it because the pull cord is stuck and it happened after I installed a new blade.
ANSWER : If the recoil assembly has three screws holding it in place, remove them, lift the recoil assembly off and see if it works off the mower. If it does, reassemble.
Gary

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