Model #BG-MS3272A ONAN Engine

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Question and Answers

Q:

starter BG-MS3272A Onan Sears onan engine

A:

It can be frustrating when you cannot figure out what is going on with the mower. A similar question has been answered in the link I provided below. Expert response time may be two business days usually sooner.

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anna -
August 02, 2013
A:

There is no link below

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gary -
August 02, 2013
A:

Thank you for using ManageMyLife.com. I know how frustrating it can be to have issues arise after trying to solve another issue.

I would start by testing the solenoid first. The Red cable that comes from the battery and ends at the start solenoid needs to checked for corrosion and cleaned if any is found. You can also jump across the big Red cabled terminals on the solenoid which will go around the solenoid and eliminate that as cause.

Carefully take a large flat blade screw driver and short across the two large terminals on the solenoid. When you do this, it will arc or spark and the starter should engage and turn the engine over. If the key is off the tractor will not start but the starter will still spin (since you are manually powering the starter motor).

You might have a bad battery or starter cable (one of the two large ones connected to the solenoid) or something may be preventing the starter from turning regardless of input. A quick way to check both is simply to test for power where the one large cable connects directly to the starter. If you have 12 volts or more there when you turn the key to Start then everything is working up to that point and the starter has an issue.

It could be a failed starter motor, but often it is something simple like a jammed gear where the starter engages the flywheel to turn the engine over. In that case you can try manually turning the engine to free the jammed gear. Moving the engine output pulley, or even the screen at the blower housing, back-and-forth will often do that.

If you had low, or no, voltage at the starter when you tested and the solenoid tests okay, then one of the two large cables to the solenoid has failed inside or is not making a clean contact at a mount point.

Or, sometimes, a battery can still show good voltage but will short when a load is applied. I would recommend installing a new battery while since the original was dead if you haven't done so already.


If you have any further questions or inquiries, please don't hesitate to ask. Thank you for using ManageMyLife.com.

 

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Jeff Wallace Sr -
Sears Technician
August 03, 2013
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Q:

Where can we get an electrical key switch for a Sears garden tractor, model BG-MS/3272A, Serial 6773265389?

A:

Finding the right parts can be difficult. I did some research using the model provided but did not find this model at Sears Parts Direct. The expert will have more resources. If repairs are needed, another option is Sears Home Services for a technician. I attached that link below if needed.

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Barbara H. -
March 13, 2011
A:

That key should be the short Indak key (there are about 3 Indak keys that are commonplace). I show the key to have changed numbers a few times and currently our number for it is STD365410. You can order that HERE or you may be just as well off to look at the photo I have attached and check at a local auto parts store to see if they carry them. It does not have to be Indak branded, it just has to look the same. The truth of the matter is that on these old switches you can anything that will turn the switch. I have used a little screwdriver on mine for years just because I always have a little screwdriver in my pocket.

Thank you for using Manage My Life!

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XX Wade_ -
Sears Technician
March 14, 2011
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