How do i remove the spark plug from my lawn mower?

Jacob

I have a OLD lawnmower and i bought it from jensen and pilgard all it says in trimmer on it and its red and green and theres a white wire were the motor is how do i remove it

Answer
Remove the connector on the end of the plug. If the plug looks to be rusty, give it a shot of WD-40 & let it sit for about 1/2 hour. It would be good to already have a spark plug wrench and a small wire/brass brush.

The brush with the wd-40 can clean up the plug if necessary. Then take your plug wrench on a ratchet & give it one quick turn counter clockwise. If you feel it loosen...continue in that direction. If you don't feel it break loose, turn it once quickly clockwise, then repeat in counter direction. Back & forth until you feel it loosen.

You do not want to force it hard in either direction past the once quick motion. Doing so can cause the ceramic core to fracture & break & then you really have a big mess on your hands.

In instances like this...brute force is not your friend. Once quick...one way then the other until you can easily unscrew it counter clockwise. I cannot stress this enough.

How do you change a spark plug on a lawn mower?

Kamunyak

Answer
0-make sure mower is off and the fuel tap switch is off.

1-gently pull back the little L shaped black rubber boot from the top of the plug. if no boot, then skip step

2-get a clean rag and the new spark plug ready ontop of the mower.(if you need to take the plug along with you to buy the new one, follow below and stuff the rag in the hole while your gone).

3-.make sure the area is completely clean with the rag before unscrewing

4-get a shifting wrench or if it's sunk down, then a sparkplug sized socket(there are 2 sizes) and wrench and turn anticlockwise, if it's stuck then apply a steady even build up of pressure until it comes loose.

5-put in the new plug and turn it till a little hard to turn then follow the directions on the plug box to see how far to turn the plug after that, 1/4 1/8 or 1/16th rotation. replace wire/cap/rubber L boot

6-turn on fuel tap again

7- give it a whirl, If nothing then, check the connection to the top of the plug and to the coil.

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Why will a lawn mower, foul it's spark plug?

Hartter

I have an old mower that keeps fouling it's plug. I have stripped the motor down, but do not understand how all the oil is reaching the plug. There looks to be a small groove in the piston head, but looks machined. Possible, that i need new rings? Also i do not see where gaskets come into play between piston and plug. So it would almost have to be the rings. I think but do not know.

Answer
Piston rings do not seal completely. They are open ended by design. When the engine is off oil can leak past the rings and into the cylinder area. The engine is designed so that when the mower is level the oil (if at it's proper level) will stay in the pan BUT if the mower is a an angle toward the head, the oil can and will run into the cylinder. Every year people wind up taking their mowers into the shop for oil in the head after the hung the mower up from a wall or shoved it into a corner at an angle.
Yes, bad rings could cause oil fouling but would more likely cause excessive blow by and thus oil out the breather system or seals. Stuck rings could do that too, while it is apart make sure to clean the ring grooves so the rings float freely.

Worn valve stem/guide could cause oil to be sucked through the guide and into the engine but would also allow the valve to not seat well and loss of power.

Another question is, how do you know it is the oil fouling the plug? A carb set too rich due to leaky/worn carb parts could also cause plug fouling.

If this mower is precious to you, put new rings, connecting rod, valves, guides, grind the valve seats and don't forget new gaskets and seals.

How do i remove the spark plug from my lawn mower?

Jacob

I have a OLD lawnmower and i bought it from jensen and pilgard all it says in trimmer on it and its red and green and theres a white wire were the motor is how do i remove it

Answer
Remove the connector on the end of the plug. If the plug looks to be rusty, give it a shot of WD-40 & let it sit for about 1/2 hour. It would be good to already have a spark plug wrench and a small wire/brass brush.

The brush with the wd-40 can clean up the plug if necessary. Then take your plug wrench on a ratchet & give it one quick turn counter clockwise. If you feel it loosen...continue in that direction. If you don't feel it break loose, turn it once quickly clockwise, then repeat in counter direction. Back & forth until you feel it loosen.

You do not want to force it hard in either direction past the once quick motion. Doing so can cause the ceramic core to fracture & break & then you really have a big mess on your hands.

In instances like this...brute force is not your friend. Once quick...one way then the other until you can easily unscrew it counter clockwise. I cannot stress this enough.

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What Type Of Spark Plugs does a John Deere L111 Automatic Riding Lawn Mower Use?

best lawn mower spark plug image

Adil

Hey their I have a John Deere L111 Automatic Riding Lawn mower and i would like to Change the Spark plugs what type of spark plugs are their? And how do i change the Oil Also and Does it have a oil Filter and also what type of Air filter does it have and how do i change it and total coast Of Parts.

Answer
Look at the plugs that are in it, get the numbers off of them and buy the same thing. The air filter is paper with a foam pre filter. You can wash the pre filter and reuse it. The paper filter will have a briggs part number on it. As for the oil filter you will have to look at your engine and see if it has an oil filter, it will look just like a car filter but smaller. To change the oil you should find a drain valve/plug near the dipstick tube.
Spark plugs are $3.00 each, the air filter will be about $14.00, the oil filter will be about that also.

Lawn mower string will only pull when I take spark plug out?

ebonieboo6

String will not pull on lawn mower. I thought it was the spark plug. I took the spark plug out and tried to pull the cord and it pulled with no problem. What do you think the problem could be.

Answer
Could be that your valves are frozen in place. Is it a four stroke? is there any oil in the sump?

There are two possible causes. Either the compressed gas can't get out or there is a mechanical cause. An extra long spark plug could do that but you'd easily notice the impact. If it is the compressed gases, a really string tug should still spin the motor.

You may need to take it to a mechanic.

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I believe I have put to much oil in my lawn mower. Will the problem eventually correct itself?

best lawn mower spark plug image

Todd L

I believe I put too much oil in my 6.75 HP Briggs and Stratton lawn mower engine. I changed spark plugs and the thing started again but the new plug was immeidately left with a charred end. Still, the thing ran, if not at optimum efficiency. My question is: will this problem correct itself or will running the engine with too much oil in it only lead to more problems?

Answer
Drain some or all of the oil out and start with new oil. You will also have to inspect the air filter for oil. If it has oil on it, replace it. Do not tip the mower to drain the oil. Use the plug on the bottom side of the engine to drain the oil. Set the mower on blocks of wood to get it off the ground so that you can reach the drain plug. It will not correct itself.

My riding lawn mower will not start. What could be the problem?

inspector4

I tried a new battery.Still nothing. It isn't turning over at all. I really know nothing about small engines. could it be the spark plug? Any help other than telling me to buy another riding lawn mower would be appreciated. Thank you.

Answer
Yes, it could be the spark plug. It's not the battery, since you just replaced that. You also might want to check your wiring connections: Sometimes tightening something that's loose will do the trick.

Good luck!

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What Type Of Spark Plugs does a John Deere L111 Automatic Riding Lawn Mower Use?

best lawn mower spark plug image

Adil

Hey their I have a John Deere L111 Automatic Riding Lawn mower and i would like to Change the Spark plugs what type of spark plugs are their? And how do i change the Oil Also and Does it have a oil Filter and also what type of Air filter does it have and how do i change it and total coast Of Parts.

Answer
Look at the plugs that are in it, get the numbers off of them and buy the same thing. The air filter is paper with a foam pre filter. You can wash the pre filter and reuse it. The paper filter will have a briggs part number on it. As for the oil filter you will have to look at your engine and see if it has an oil filter, it will look just like a car filter but smaller. To change the oil you should find a drain valve/plug near the dipstick tube.
Spark plugs are $3.00 each, the air filter will be about $14.00, the oil filter will be about that also.

Lawn mower string will only pull when I take spark plug out?

ebonieboo6

String will not pull on lawn mower. I thought it was the spark plug. I took the spark plug out and tried to pull the cord and it pulled with no problem. What do you think the problem could be.

Answer
Could be that your valves are frozen in place. Is it a four stroke? is there any oil in the sump?

There are two possible causes. Either the compressed gas can't get out or there is a mechanical cause. An extra long spark plug could do that but you'd easily notice the impact. If it is the compressed gases, a really string tug should still spin the motor.

You may need to take it to a mechanic.

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