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I have a Briggs & Stratton 13.5 in my Craftsman tractor. It wouldn't start so I put a new plug in, a new armature, fuel filter and cleaned the main ground.no luck Any suggestions. Briggs & Stratton I/C Gold Model 28R707 Type 0140-01 Code 9605037B Thank you

nemo56 said:

I have a Briggs & Stratton 13.5 in my Craftsman tractor. It wouldn't start so I put a new plug in, a new armature, fuel filter and cleaned the main ground.no luck Any suggestions. Briggs & Stratton I/C Gold Model 28R707 Type 0140-01 Code 9605037B Thank you

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Will the engine spin over fast fast or just medium speed...... Compression, fuel and spark are what we looking for.....Why did you put a new coil on it ???? A no spark issue ???

Did you try spraying some Carb cleaner in the carb and start it ??? Not starting fluid though Carb cleaner......

We need to go step by step on this ........

Let us know Mon Ami ~!~!

I did spray carb cleaner in the carb. The motor spins fast. I replaced the armature because I didn't have spark. Now with the new one theres spark at times then not.Doesthis engine have a CDI?

Yes you got the Magnetron coil..... Check for where the coil bolts to. Flat file both those mounting posts.......

Check for compression.....

Does this engine have a low oil shutdown?

Padroo said:

Does this engine have a low oil shutdown?

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No it does not.....

Pull kill wire at coil and try to eliminate any switch problems.

MowLife said:

Pull kill wire at coil and try to eliminate any switch problems.

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I did pull the wire. I got spark so what's left? How do you test a switch? My manual shows I have 3switches, a seat switch and 2 interlock switches. Thank you!

nemo56 said:

I did pull the wire. I got spark so what's left? How do you test a switch? My manual shows I have 3switches, a seat switch and 2 interlock switches. Thank you!

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You could use a test light or a volt meter to check for power. Neither cost much, buy one or the other and learn how to use it, it will be your best friend.

I was referring to ur post #3 that it didn’t spark at times. With that wire disconnected your bypassing all your “kill” switches and should have spark at ALL times...if not you have a coil issue. Next would be fuel, compression or timing.

Did all work suggested inpast post. All switches are good. Still no spark with kill wire on. I guessbad wiring is all that's left
Thanks

Without a wiring diagram in front of me I wouldn't know for sure but all those interlocks should be a series circuit, a break anywhere will open the circuit. With a test light or a voltmeter start testing and see where power is or isn't then follow the yellow brick road.

Padroo said:

Without a wiring diagram in front of me I wouldn't know for sure but all those interlocks should be a series circuit, a break anywhere will open the circuit. With a test light or a voltmeter start testing and see where power is or isn't then follow the yellow brick road.

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Padroo has it backwards.
The kill circuit is a ground circuit that grounds out the coil, so a break anywhere in it will allow the coil to fire, not prevent it sparking.
There is 2 ignition circuits in play during cranking
1) key switch
2) Parking brake & PTO switches
Depending upon your model, the parking brake switch is a double switch.
One pair of contacts will have 12V pass through it which goes to the starter solenoid & the other pair ( usually black or brown ) will e a ground circuit that grounds out the magneto.
The PTO switch will be the same as the brake if you have a manual blade engagement .
If it has electric blade clutch then the PTO Switch will have a lot of ground contacts + a pair of cranking contact ( 12V in start position ) + a pair of Clutch contacts , usually a ground contact as well ( Electric clutches are electrically isolated so have a + & - connection )

I agree with Bert..... Some of those switches are dual switches either one is normally open and the other 2 legs will be normally closed..... 1 or 2 of the switches on most mowers are like that... Hence you just can't unplug the seat switch anymore most of the time..... Those switches can be confusing.......

That's my quarter since 2 cent's ain't worth nothing no more............

Plus Tard ~!~!