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Briggs & Stratton Starter motors

#1

Roger B

Roger B

I inherited a MTD Yardman mower with an 18.5 HP Briggs & Stratton engine, Model 31N707, Type 0301 B2, that had it's starter motor removed. I would like to order a replacement starter but can't determine if I need a 14 or 16 tooth drive gear on it. The Briggs parts manual says that engine uses a P/N 693551 starter, which has been changed to P/N 593934, but I can't tell from what I read on-line how many tooth gears those starters come with. Any of you guys know what I need? Also, are after market starters reliable or should I throw the big bucks of an OEM starter?

Thanks for the help,

Roger B


#2

Roger B

Roger B

OOPS!!! It looks like I should have posted this on the Briggs sub-forum.. Sorry about that.. I'd move it if I knew how, but then I couldn't even figure out how to edit it.. If Admin can move it to the proper location, please do and accept my apologies for screwing things up.. Geez, Newbies...

Roger B


#3

Boobala

Boobala

Roger B said:
I inherited a MTD Yardman mower with an 18.5 HP Briggs & Stratton engine, Model 31N707, Type 0301 B2, that had it's starter motor removed. I would like to order a replacement starter but can't determine if I need a 14 or 16 tooth drive gear on it. The Briggs parts manual says that engine uses a P/N 693551 starter, which has been changed to P/N 593934, but I can't tell from what I read on-line how many tooth gears those starters come with. Any of you guys know what I need? Also, are after market starters reliable or should I throw the big bucks of an OEM starter?

Thanks for the help,

Roger B
Click to expand...

Here's a few places to check, the starter you order with the correct P/N should have the proper pinion gear for your engines ring gear. as you research there is a great difference in price, if you plan to keep the mower for a long period of time , I would opt for a starter of O.E.M. quality, BUT I've had satisfaction with SOME ...... (el-cheapo parts) too.. ... guess it depends on how deep your money pocket is . Best of luck .......Boobala

http://www.ereplacementparts.com/motorstarter-p-229384.html

https://www.smallenginesuppliers.com/shop/html/pages/products/Briggs_Stratton_Starters3079.html

http://www.jackssmallengines.com/jacks-parts-lookup/part/arrowhead/sbs0029

http://www.repairclinic.com/PartDetail/Lawn-Mower-Electric-Starter/593934/3388819?ss=a21&mr=0

https://www.amazon.com/Caltric-Starter-Briggs-Stratton-Craftsman/dp/B007KA7PP6


#4

P

Pumper54

You might try dropping bu one of your local mower repair shops and ask them what the tooth count is on the starter motor or maybe call the B&S help line and ask them. They SHOULD know the answer. ;-)

Tom


#5

Roger B

Roger B

Boobala & Tom,

Thanks for the links and tips, I appreciate it.. What puzzled me are the comments left by others that bought replacement starters (from seemingly the same part numbers) that indicated they came with spur gears having a different number of teeth. I was hoping to avoid the same problem of ending up with the wrong one. It "looks" like what I want comes with 14 teeth, but as I don't have the original one, I can only guess. Others have indicated that calling Briggs doesn't often get the desired results.. I'll give it a go and see what that gets me..

Thanks again,

Roger B


#6

P

Pumper54

Roger,
Looking over the links and the engine data that I could find I think you would be OK with getting a starter motor with a 14 tooth gear. Especially if you can get it locally so if for some unknown reasons it is wrong you can take it back.
Tom


#7

Roger B

Roger B

Thanks again Tom,

As far as I can tell the starter motor with the old P/N - 693551, does have a 14 tooth spur gear. I'm going to try my luck and order on line.

Roger B


#8

John R

John R

Roger B said:
Thanks again Tom,

As far as I can tell the starter motor with the old P/N - 693551, does have a 14 tooth spur gear. I'm going to try my luck and order on line.

Roger B
Click to expand...

Let us know when you get the starter.


#9

B

bertsmobile1

The spur gears are replaceable & interchangable.
I get my starters from a reliable aftermarket supplier and they come with both gears in a plastic bag.
This reduces inventory costs.
The starters are the same, just the gears are different.
Mount the starter without the gear retainer and without a plug in the engine.
Pop your finger on the starter armature and with your thumb lift the gear up to engage with the flywheel.
turn the flywheel by hand and watch the teeth engagement.
If the gear jambs it is wrong.
If the gear pushes back on the armature hard all the time it is wrong
If the teeth only just touch it is wrong.
Retail the gears are only a couple of dollars each so no big cost.


#10

Roger B

Roger B

Bert,

I ordered a B&S authorized replacement starter (comes in a B&S box!) - Gotta be the right one! . . . Right? . . . I'll find out soon, it's supposed to arrive tomorrow.

Thanks for the tips on how to determine if it has the correct spur gear. I appreciate it, I will follow your suggestions...

Roger B


#11

Boobala

Boobala

Roger B said:
Bert,

I ordered a B&S authorized replacement starter (comes in a B&S box!) - Gotta be the right one! . . . Right? . . . I'll find out soon, it's supposed to arrive tomorrow.

Thanks for the tips on how to determine if it has the correct spur gear. I appreciate it, I will follow your suggestions...

Roger B
Click to expand...

Let us know how things work out Roger, you really should'nt have a problem. Don't forget to be sure all your cables are clean and tight all the way back to the battery ...... :thumbsup:


#12

Roger B

Roger B

Boobala,

Not to worry about the wiring.. I spent 10 years of my early life in electronics in the Submarine Service and then 36 more years as a Master Electrician in civilian life. After removing all the mower related equipment, I've had nothing to do on this project while waiting for the starter motor to arrive, except a little welding and repainting on the muffler cage, so I have traced out the wiring, just so I knew what all the safety switches do. I'll make sure all the contacts are clean and tight!

Should have a 'starting report' by sometime tomorrow.

Roger B


#13

Roger B

Roger B

IT WORKS!!!

It works!

The starter arrived today early enough for me to install it and give it a whirl.. It is a 14 tooth spur gear and fits the flywheel perfectly. Now I have to figure out why the engine won't run unless I dump a little fuel into the mouth of the carburetor. It only runs for a few seconds until the fuel is burned up and then dies... As this tractor sat outside unused for two years, I suspect I may have to clean or rebuild the carb. But hey, it's a good day right? The engine turns over and fires, I'm a happy boy... so far..

Roger B


#14

Boobala

Boobala

Re: IT WORKS!!!

Roger B said:
It works!

The starter arrived today early enough for me to install it and give it a whirl.. It is a 14 tooth spur gear and fits the flywheel perfectly. Now I have to figure out why the engine won't run unless I dump a little fuel into the mouth of the carburetor. It only runs for a few seconds until the fuel is burned up and then dies... As this tractor sat outside unused for two years, I suspect I may have to clean or rebuild the carb. But hey, it's a good day right? The engine turns over and fires, I'm a happy boy... so far..

Roger B

Yeah Roger, we know about your fascination with electricity, ..17a2cfe2c406707581a2a52f3523607b (Large).jpg
!cid_5_3565631763@web180203_mail_gq1_yahoo.jpg nosey lil booger are'nt ya ?? ..:laughing: ..:laughing: ..:laughing: (LOL)
Click to expand...


#15

Roger B

Roger B

Ya Booba... I've been there and done that!! . . LOL.... But unlike 'normal' kids the shocking experience didn't deter me from becoming interested in electricity. My old man was an electrician and I think that sealed my fate..

(However, Electrician or not, I do have to admit something to you.. This tractor has a switch associated with the Forward-Neutral-Reverse lever. This switch is grounded when the lever is moved to the Reverse position and I can't for the life of me figure out what it does. You got any ideas? - I know it's something stupid, so don't tell everybody what a dumb a** I am, OK?)

Roger


#16

B

bertsmobile1

Roger B said:
Ya Booba... I've been there and done that!! . . LOL.... But unlike 'normal' kids the shocking experience didn't deter me from becoming interested in electricity. My old man was an electrician and I think that sealed my fate..

(However, Electrician or not, I do have to admit something to you.. This tractor has a switch associated with the Forward-Neutral-Reverse lever. This switch is grounded when the lever is moved to the Reverse position and I can't for the life of me figure out what it does. You got any ideas? - I know it's something stupid, so don't tell everybody what a dumb a** I am, OK?)

Roger
Click to expand...

Supposed to prevent you mowing while going backwards.
Apparently you run over small children when you do that.


#17

Roger B

Roger B

bertsmobile1 said:
Supposed to prevent you mowing while going backwards.
Apparently you run over small children when you do that.
Click to expand...

That's what puzzles me! I figured that the only things that would want to either operate or not operate when in Reverse were:
1.) back-up lights.. The tractor does not have back-up lights.
2.) Mower - I removed the mower deck and all associated equipment. Nothing was electrically operated, the mower was all belt drive and was mechanically operated, so what does grounding this switch actually do? How could it effect the mower?

I remain puzzled..

Roger B


#18

Boobala

Boobala

Roger B said:
Ya Booba... I've been there and done that!! . . LOL.... But unlike 'normal' kids the shocking experience didn't deter me from becoming interested in electricity. My old man was an electrician and I think that sealed my fate..

(However, Electrician or not, I do have to admit something to you.. This tractor has a switch associated with the Forward-Neutral-Reverse lever. This switch is grounded when the lever is moved to the Reverse position and I can't for the life of me figure out what it does. You got any ideas? - I know it's something stupid, so don't tell everybody what a dumb a** I am, OK?)

Roger
Click to expand...

Here's another site I use, that you can get your briggs engine info from, among other things ...... your engine manual SHOULD be ( 276781 ) ......single cylinder OHV ....http://www.mytractorforum.com/280-s...ies/242387-briggs-statton-repair-manuals.html

Some more info.......http://support.mtdproducts.com/app/answers/detail/a_id/10584

http://service.mtdproducts.com/Training_Education/770-10578.pdf
http://service.mtdproducts.com/Training_Education/770-10579.pdf

I have further info., ..... if I have it ......you can have it ...... Boobala

And another.......http://outdoorpowerinfo.com/repairs/#id_briggs


#19

P

Pumper54

Roger B said:
Ya Booba... I've been there and done that!! . . LOL.... But unlike 'normal' kids the shocking experience didn't deter me from becoming interested in electricity. My old man was an electrician and I think that sealed my fate..

(However, Electrician or not, I do have to admit something to you.. This tractor has a switch associated with the Forward-Neutral-Reverse lever. This switch is grounded when the lever is moved to the Reverse position and I can't for the life of me figure out what it does. You got any ideas? - I know it's something stupid, so don't tell everybody what a dumb a** I am, OK?)

Roger[/QU

Switch is supposed to allow you to mow in reserve when on and kill the clutch for the blades if you just put the mower in reserve. Like Boobala said if you don't use that switch you will run over small children, pets, rocks, stumps and other things when mowing in reserve.
;-)
Tom
Click to expand...


#20

Roger B

Roger B

Tom, Boobala, et. al.....

From the MTD manual that Boob-La hooked me up with, I figured out the wiring of my tractor. I have a standard wiring system, not the system with the electronic O.C.R. (Operator Controlled Reverse) system. The reverse switch I was wondering about does exactly what I couldn't imagine it would... It shuts the engine off if you shift into reverse with the PTO engaged! Obviously, (as everyone has pointed out) an effort to prevent you from running over children or small dogs while mowing in reverse, albeit a rather extreme method of doing so! In any event, now that I have figured out ALL the safety switches, I will be able to disconnect and/or rewire them except for the brake switch, I intend to leave it as it is, so the brake will have to be pressed in order to start the engine.

As I have removed the mower deck and all associated controlling levers, equipment, etc... I have no concerns about chopping up children or dogs, or rock and sticks, for that matter! I can back up with complete abandon! Maybe I'll add a rearview mirror!

Now I'm on the hunt for a used MTD 618-04381A transaxle...

Roger


#21

B

bertsmobile1

The reverse thing is of course lead undies ( A##e protection ) for the manufacturers.
Blades going or not if you reversed over a toddler they would be very seriously injured way before the blades got anywhere near them.
I do know of one idiot who Darwin was correct all along by mowing over a live power lead to a water pump.
His widdow lost a fortune trying to sue for damages.
Thankfully very few judges down here believe in creationism.

Apparently it is dangerious to mow backwards on a tractor mower but quite safe to do the same thing on a ZTR


#22

Boobala

Boobala

bertsmobile1 said:
The reverse thing is of course lead undies ( A##e protection ) for the manufacturers.
Blades going or not if you reversed over a toddler they would be very seriously injured way before the blades got anywhere near them.
I do know of one idiot who Darwin was correct all along by mowing over a live power lead to a water pump.
His widdow lost a fortune trying to sue for damages.
Thankfully very few judges down here believe in creationism.

Apparently it is dangerious to mow backwards on a tractor mower but quite safe to do the same thing on a ZTR
Click to expand...

HEY there Trev,
he posted he removed the deck...... don't know if he's going to use it without a deck but it's his endeavor... I hope you're doin well these days...later, .....Boobala


#23

P

Pumper54

Roger,
Forget the rear view mirror this is the 20teens, get with the program here: http://www.toptenreviews.com/home/auto/best-rear-view-cameras/

LMAO
Tom


#24

Roger B

Roger B

Tom,

Why didn't I think of that!?!?!? Waaaaay better than a rear view mirror!

I'm going to quit posting to this thread and start one on my transaxle repair.. I've decided to give repairing it a shot. I figure it's worth a try anyway.

Thanks for your help AND your GREAT ideas... Back-up camera... now why didn't I think of that??????

Roger


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