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Briggs & Stratton - Not Starting

#1

L

lawnguyz

Hi,
My Briggs and Stratton (model 111P02-0007-F1) lawn mower does not start anymore.

It was working last Friday while I was mowing the backyard. Outside temperature was at 101 degrees F. The lawn mower stopped and would not start. I had to wait for around 10 mins or so then it would start running again. This happened 2 more times.

The last time it stopped last Friday, it never started again.

I checked everything including:
1. float bowl -> no dirt or water
2. I added gas stabilizer and fill the tank
3. I changed the air filter
4. I changed oil

Still it does not start. I wanted to check here for help before taking it to lawn service repair store.

I have recorded a video showing the sound my lawn mower is making when pull the start coil.

Dropbox

www.dropbox.com www.dropbox.com

Please let me know if you have any ideas on what's going on.

Thanks!


#2

S

Spark*Plug

similar to this maybe?

www.lawnmowerforum.com

engine makes clicking noise when trying to start - valves not opening

I have a Toro 22" recycler, bought in 2017, and have changed oil and uses stabilized fuel over the recent years. Engine is Briggs and Stratton 128M02-0017-F1. I tried to start it up this spring, and the engine didn't turn over after a few pulls, and then all of a sudden it started making this...
www.lawnmowerforum.com www.lawnmowerforum.com


#3

L

lawnguyz

Might be similar but not really know for sure :(

My lawn mower seems to back fire telling me that valve is not open/close correct?


#4

R

Rivets

Next time you get it running and it quits, check for spark. With the temps these days I’ve seen a few bad coils which are either hot shorting or having a hot open which means no spark. If it doesn’t stark now you may have one of these conditions and will not reset it self. Either way if you find no spark, time to replace the coil.


#5

B

bertsmobile1

This is an overhead valve engine so please check the valve lash


#6

L

lawnguyz

Rivets said:
Next time you get it running and it quits, check for spark. With the temps these days I’ve seen a few bad coils which are either hot shorting or having a hot open which means no spark. If it doesn’t stark now you may have one of these conditions and will not reset it self. Either way if you find no spark, time to replace the coil.
Click to expand...
We did see sparks when we took the spark plug and and touching it against the engine as my friend pulled to start it.


#7

L

lawnguyz

bertsmobile1 said:
This is an overhead valve engine so please check the valve lash
Click to expand...
do I have to open the engine to check the valve lash?


#8

B

bertsmobile1

Remove the blower housing then remove the cover at the front that has OHV stamped into it
lots of videos showing how to adjust the valve lash and the only catch is remembering a 4 stroke does 2 full revolutions so you need to make sure the engine is in the right TDC when you adjust the valves
While the blower housing os off, get an inspection mirror & check the under side of that tube that goes across the engine
If you decide to take it off for a proper inspection then take plenty of photos so you know how & where all the bits go back together .


#9

L

lawnguyz

bertsmobile1 said:
Remove the blower housing then remove the cover at the front that has OHV stamped into it
lots of videos showing how to adjust the valve lash and the only catch is remembering a 4 stroke does 2 full revolutions so you need to make sure the engine is in the right TDC when you adjust the valves
While the blower housing os off, get an inspection mirror & check the under side of that tube that goes across the engine
If you decide to take it off for a proper inspection then take plenty of photos so you know how & where all the bits go back together .
Click to expand...
Thanks for the advice. Will try tomorrow :)


#10

Scrubcadet10

Scrubcadet10

lawnguyz said:
Thanks for the advice. Will try tomorrow :)
Click to expand...
a easier method i use for adjusting valves is the OVOOVC method.
One
Valve
Open
One
Valve
Closed
you adjust the valve that is closed. so if the intake spring is depressed, your adjust the exhaust valve, etc.


#11

L

lawnguyz

I adjusted the valves per Scrubcadet10 recommendation but the lawn mower still doesn't start. A couple of times it seemed to started but quickly died.

Any other suggestions? Thanks


#12

tackleberry

tackleberry

sounds like to nme an ignition module breaking down from heat. Thats not uncommon....when it cools down the engine will start,,, then either shut down on its own due to no spark, or when you stop and change a bag or get a drink, it wont restart until the module cools down. Ignition module is do-able for a DIYer.....a business card is just right for spacing the module away from the flywheel when you install the new module.


#13

D

DaveTN

Just curious how much compression you have? I have to pull my 6.75 faster than that to
get it to hit. I've got one like it that won't start from a customer. That popping sound does
sound a little like a head gasket losing compression. Could be as "tackle says", a coil
going bad. Several years ago had a twin Kohler that would pop and sputter and quit. Let
the coil cool down and it would start again but only run on 1 cylinder. I took the coil off and
put it in the freezer while I went to lunch. Came back and drove it to the shop to work on it
since it quit a long way from the house.


#14

S

smallenginerepairs

Make sure you have good fuel flow. Take off the bolt onthe bottom of the carb bowl, see if when the float is down if there is good flow of fuel. If you raise the float is pushed up to where it is horizontally level with the carb and the fuel shuts off completely your float is operating correctly, put the bowl and bolt back on. This leaves you with either a short in the kill switch wire or your coil. Inspect your kill wire from your coil to wherever the point where it mechanically grounds out. This can be either at your throtle linkage or with the mowers with the handle you have to depress, it will usually be on top of the flywheel where the stop brake pads are. If no fraying of the wire where it can ground out on the engine, then you have a faulty coil. I hope this helps you.


#15

C

Camms61

lawnguyz said:
Hi,
My Briggs and Stratton (model 111P02-0007-F1) lawn mower does not start anymore.

It was working last Friday while I was mowing the backyard. Outside temperature was at 101 degrees F. The lawn mower stopped and would not start. I had to wait for around 10 mins or so then it would start running again. This happened 2 more times.

The last time it stopped last Friday, it never started again.

I checked everything including:
1. float bowl -> no dirt or water
2. I added gas stabilizer and fill the tank
3. I changed the air filter
4. I changed oil

Still it does not start. I wanted to check here for help before taking it to lawn service repair store.

I have recorded a video showing the sound my lawn mower is making when pull the start coil.

Dropbox

www.dropbox.com www.dropbox.com

Please let me know if you have any ideas on what's going on.

Thanks!
Click to expand...
I had the same problem with my Toro/Briggs & Stratton engine, it started when the engine was cool but when it was hot it cut out.
Replaced the coil and it solved the problem.


#16

S

STEVES

Try new spark plug & then coil.


#17

E

elmrfudd

Sure sounded like a blown head gasket to me. Heard that sound a lot over the years. The part of the gasket from cylinder to the outside edge. Double check compression.


#18

doug9694

doug9694

lawnguyz said:
Hi,
My Briggs and Stratton (model 111P02-0007-F1) lawn mower does not start anymore.

It was working last Friday while I was mowing the backyard. Outside temperature was at 101 degrees F. The lawn mower stopped and would not start. I had to wait for around 10 mins or so then it would start running again. This happened 2 more times.

The last time it stopped last Friday, it never started again.

I checked everything including:
1. float bowl -> no dirt or water
2. I added gas stabilizer and fill the tank
3. I changed the air filter
4. I changed oil

Still it does not start. I wanted to check here for help before taking it to lawn service repair store.

I have recorded a video showing the sound my lawn mower is making when pull the start coil.

Dropbox

www.dropbox.com www.dropbox.com

Please let me know if you have any ideas on what's going on.

Thanks!
Click to expand...
Try another spark plug .Check for spark if that don't fix it.


#19

F

first pull

lawnguyz said:
Hi,
My Briggs and Stratton (model 111P02-0007-F1) lawn mower does not start anymore.

It was working last Friday while I was mowing the backyard. Outside temperature was at 101 degrees F. The lawn mower stopped and would not start. I had to wait for around 10 mins or so then it would start running again. This happened 2 more times.

The last time it stopped last Friday, it never started again.

I checked everything including:
1. float bowl -> no dirt or water
2. I added gas stabilizer and fill the tank
3. I changed the air filter
4. I changed oil

Still it does not start. I wanted to check here for help before taking it to lawn service repair store.

I have recorded a video showing the sound my lawn mower is making when pull the start coil.

Dropbox

www.dropbox.com www.dropbox.com

Please let me know if you have any ideas on what's going on.

Thanks!
Click to expand...
It's either fuel or fire. Just start by testing for spark then if you do have spark look to your fuel system


#20

tackleberry

tackleberry

check spark when it does that...magnetos breakdown under heat..if no spark until it cools down...replace your magneto.


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