How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask JohnF2015 Your Own Question
JohnF2015, Small Engine Technician
Category: Small Engine
Satisfied Customers: 1102
Experience:  Owner/Service Technician at S & J Small Engines
Type Your Small Engine Question Here...
JohnF2015 is online now
A new question is answered every 9 seconds

I have a Sears 42 inch lawn tractor with what I think is a

Customer Question

I have a Sears 42 inch lawn tractor with what I think is a Briggs & Stratton engine. It appears that the battery charging system on the motor is not working. Is this something that can be repaired by replacing a part? Where would the part be located on the engine. The motor is a 420cc overhead valve SN:4P90HU/1301101A0363. Thank you *****
Submitted: 1 year ago.
Category: Small Engine
Expert:  JohnF2015 replied 1 year ago.

Hi, my name is***** will be assisting you.

Yes, it can normally be repaired but based on the numbers that you have provided you do not have a Briggs engine, you actually have a Chinese built engine on this machine. Do you have a volt meter? Can you perform some basic test if I provide instructions on how to do them? Can you provide the model and serial number from the frame of the machine so that I can better assist you?

Customer: replied 1 year ago.
Model no of engine is 4P90HU, SN: 4P90HU/1301101A0363. The system was checked with a volt meter and showed no power being sent to the battery.
Expert:  JohnF2015 replied 1 year ago.

Okay, then you can replace the stator on the engine which is located under the flywheel on the engine. It is MTD part number 951-12224 which can be purchased through an authorized MTD dealer, online at several different parts sites or back through Sears directly. I am providing a few links to different websites that you can go to purchase the part.

I hope that you find this information helpful. It has been a pleasure to assist you. Please take a moment to rate your experience.