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hustler Z mower under power

#1

S

smf

I have a hustler z mower. The mower is bogging down and miss firing. I tried it with deck off and on doesn't matter. I have changed the plugs and fuel filter and didn't help. had a technician look at it and cleaned the carburetor and didn't help. it doesn't do it all the time . sometime it starts after running awhile and other times it does as soon as you start it.


#2

Fish

Fish

smf said:
I have a hustler z mower. The mower is bogging down and miss firing. I tried it with deck off and on doesn't matter. I have changed the plugs and fuel filter and didn't help. had a technician look at it and cleaned the carburetor and didn't help. it doesn't do it all the time . sometime it starts after running awhile and other times it does as soon as you start it.
Click to expand...

When it acts up again, yank one of the plug wires and see how it acts.

Then try it again, but with the other plug wire.

Tell us what you find.

If it just has only one plug wire, then post the engine's model numbers so we at least have a clue how to help you.

BTW, yanking a plug wire may be shocking, so use some insulated pliers, or your brother-in-law.


#3

S

smf

Fish said:
When it acts up again, yank one of the plug wires and see how it acts.

Then try it again, but with the other plug wire.

Tell us what you find.

If it just has only one plug wire, then post the engine's model numbers so we at least have a clue how to help you.

BTW, yanking a plug wire may be shocking, so use some insulated pliers, or your brother-in-law.
Click to expand...



it has two plugs. pulled one off didn't do anything . when i put that plug back on and pulled the other plug it shut done


#4

Fish

Fish

smf said:
it has two plugs. pulled one off didn't do anything . when i put that plug back on and pulled the other plug it shut done
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Well then that helps a lot.the one that you pulled the plug on and it kept running, that is the bad side. Pull the valve cover off next and tell us what you see.


#5

Carscw

Carscw

Does this engine have 1 or 2 coils?

(( cowboy up and get over it ))


#6

S

smf

Fish said:
Well then that helps a lot.the one that you pulled the plug on and it kept running, that is the bad side. Pull the valve cover off next and tell us what you see.
Click to expand...

pulled head off looks good . could it be the coil


#7

S

smf

Carscw said:
Does this engine have 1 or 2 coils?

(( cowboy up and get over it ))
Click to expand...

has two coils


#8

Carscw

Carscw

Fish what do you think? Could he have one bad coil? Or maybe a wire rubbing on something ?

(( cowboy up and get over it ))


#9

S

smf

Carscw said:
Fish what do you think? Could he have one bad coil? Or maybe a wire rubbing on something ?

(( cowboy up and get over it ))
Click to expand...

i checked the wire to coil. no sign of wear


#10

Carscw

Carscw

Did you check for spark?

I would swap the two and see if it changes the miss fire to the other side then I think we could maybe say that coil is bad.

(( cowboy up and get over it ))


#11

S

smf

Carscw said:
Did you check for spark?

I would swap the two and see if it changes the miss fire to the other side then I think we could maybe say that coil is bad.

(( cowboy up and get over it ))
Click to expand...

okay. I will try that tomorrow or friday thanks. I will let you now what happens


#12

M

Mad Mackie

Could be a bad coil or possibly the Y harness that goes to the coils which have diodes in them so the engine can be shut down from a single wire at the key switch. The diodes prevent the coils from back-feeding each other which would prevent the engine from being shut down electrically.
What engine do you have?


#13

S

smf

Mad Mackie said:
Could be a bad coil or possibly the Y harness that goes to the coils which have diodes in them so the engine can be shut down from a single wire at the key switch. The diodes prevent the coils from back-feeding each other which would prevent the engine from being shut down electrically.
What engine do you have?
Click to expand...

23 hp Kawasaki


#14

S

smf

smf said:
okay. I will try that tomorrow or friday thanks. I will let you now what happens
Click to expand...

i swapped coils. now the other side does it, but doesn't always do it. i notice the coil that is bad the spark is weak and win you give it gas stays weak. i am pretty sure it is the coil but could it be the Y harness that goes to the coils which have diodes someone mentioned that earlier


#15

Carscw

Carscw

smf said:
i swapped coils. now the other side does it, but doesn't always do it. i notice the coil that is bad the spark is weak and win you give it gas stays weak. i am pretty sure it is the coil but could it be the Y harness that goes to the coils which have diodes someone mentioned that earlier
Click to expand...

If it was the y harness then the miss fire would have stayed on the same side.
I would replace that coil

(( cowboy up and get over it ))


#16

Fish

Fish

smf said:
i swapped coils. now the other side does it, but doesn't always do it. i notice the coil that is bad the spark is weak and win you give it gas stays weak. i am pretty sure it is the coil but could it be the Y harness that goes to the coils which have diodes someone mentioned that earlier
Click to expand...

Well, if you say you swapped and the other side does it sometimes now, then you have it narrowed to that. The coils need a good clean ground.

You did not swap the harness, did you? So go with what you have found.

You need to check for voltage on your kill circuit, that will damage and kill coils...


#17

S

smf

Fish said:
Well, if you say you swapped and the other side does it sometimes now, then you have it narrowed to that. The coils need a good clean ground.

You did not swap the harness, did you? So go with what you have found.

You need to check for voltage on your kill circuit, that will damage and kill coils...
Click to expand...

Bought new coil it took care of problem .Runs great now. Thanks for the help


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