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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26016
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Why does my engine stop on my Ariens 1028 Rear engine Mower

Customer Question

Why does my engine stop on my Ariens 1028 Rear engine Mower when I release the brake pedal. Engine starts and runs fine until brake is released then stalls.
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.

The seat switch and brake switch work together. Stat with checking the seat switch and harness.

Customer: replied 1 year ago.
I have already tried jumping out the seat switch and it makes no difference. Motor runs until brake is released and then stalls.
Expert:  Curtis B. replied 1 year ago.

Is seat switch just two wire switch?

Expert:  Curtis B. replied 1 year ago.

Did you try it just unplugged?

Customer: replied 1 year ago.
it is just two wires.
Customer: replied 1 year ago.
the motor runs with the seat switch pluged in or unpluged. Runs fine until I release brake.
Expert:  Curtis B. replied 1 year ago.

https://www.partstree.com/parts/ariens/mowers-rear-engine-riding-lawn-mower/927046-rm1028e-ariens-28-rear-engine-rider-10hp-b-s-sn-000101-above/electrical/

Expert:  Curtis B. replied 1 year ago.

This diagram is RM1028.??

Customer: replied 1 year ago.
The machine is an Ariens model 927061- 1028
Expert:  Curtis B. replied 1 year ago.

https://www.partstree.com/parts/ariens/mowers-rear-engine-riding-lawn-mower/927061-1028-ariens-28-rear-engine-rider-10hp-b-s-hydro-sn-020000-above/electrical-system/

Expert:  Curtis B. replied 1 year ago.

Ok,seat is N/O, so it can be bypassed. That leaves the brake and neutral interlocks.

Customer: replied 1 year ago.
How do I check the brake and neutral interlocks?
Customer: replied 1 year ago.
The motor won't start unless the parking brake is engaged. When engaged it starts up fine. Stalls when brake is released.
Expert:  Curtis B. replied 1 year ago.

Pto switch off and working?

Customer: replied 1 year ago.
Won't start unless pto switch is off. If switch is off, it starts fine.
Customer: replied 1 year ago.
Won't start if pto switch is on.
Expert:  Curtis B. replied 1 year ago.

Run circuit is not complete. Swap the two relays.

Customer: replied 1 year ago.
Starting pto switch with the motor running and brake on also stalls motor.
Customer: replied 1 year ago.
I'm not an electrical guy but looking at the wiring diagram, I only see one relay, the start relay.
Expert:  Curtis B. replied 1 year ago.

i just looked at the picture, showed two. But # ***** is diode, have you checked it?

Customer: replied 1 year ago.
Like I say, I am not electrically inclined, but the diagram I have does not have numbers on it. I have a sketch of the wiring harness an it has a 22 near the head light. Is that what you are reffering to?
Expert:  Curtis B. replied 1 year ago.

https://www.partstree.com/parts/ariens/mowers-rear-engine-riding-lawn-mower/927061-1028-ariens-28-rear-engine-rider-10hp-b-s-hydro-sn-020000-above/electrical-system/

Customer: replied 1 year ago.
I also see a 22 near the seat switch on the sketch of the harness. But the wiring diagram only shows a start relay. The diagram also shows only two diodes, pto and start.
Customer: replied 1 year ago.
My 1028 is a 2004 model. We may be looking at different diagrams.
Expert:  Curtis B. replied 1 year ago.

Did you find either diode? And check them for continuity in one direction only.

Customer: replied 1 year ago.
I' sorry, but you are way beyond my capabilities. I wouldn't know what a diode looks like or how to test it. Maybe I can get one of my sons over during the week and have them look. Can we continue this discussion then?t
Expert:  Curtis B. replied 1 year ago.

Sure, let me know.

Customer: replied 1 year ago.
Thank you. Wow do I get a hold of you again?
Expert:  Curtis B. replied 1 year ago.

You should have a link in your email to get back.