Question about Troy Bilt 5.5hp Self Propelled Mower

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Self-Propelled Model Starts, then dies after about 15 seconds

The mower is new -- bought earlier this summer. It ran fine the last time I used it, 2 weeks ago. The oil level is fine and it has a full tank of new gas. Since I started having this problem, I have to prime the mower at least 15 times to get it to start at all. The engine revvs up full throttle, runs for about 15 - 45 seconds, then dies. Then I have to prime it 15 more times to get it to start again. Every time I get it to start, it dies after 15-45 seconds. Someone suggested that I try cleaning the air filter, but I don't know where the air filter is.

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I posted same problem as this couple days ago. Took mower to shop. The governor spring (located just under the air filter) had come off. So glad it was something so minor!

Posted on Jul 25, 2009

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Your owners manual should tell you where the air filter is. It could also be a blockage in the gas tank at the fuel pickup point. Also check for a leak in your fuel lines. Many movers these days also have fuel filters if yours has a filter I would suggest replacing it. If all else fails the mower is under a year old you may have some kind of warranty coverage still in effect.

Posted on Jul 21, 2009

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Did you check the voltage in the battery, better yet load test the battery. I bought a battery last summer and found they only warranty them for 60 days. There are safety things which will not let the mower try to start. I changed my seat switch last summer. on mine you raise the seat and you see the switch. I can not remember if I pulled the wires off and connected them or left them separated from one another. It ran till I could order the switch. The seat switch will not let the mower even try to start. On mine the PTO has to be off. You might want to make sure the brake is on and you have it in neutral. These are a couple issues I have had.

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Have a 19.5 HP Twin B&S with a 46" cut model father in laws whioch hasnt started for years. He has neen cutting his yard with a push mower, but had a heart attack 2 weeks ago and has asked me to...
Hi and welcome to FixYa, I am Kelly I just answered another post and your question appeared after my posting. I see it is 2 days old. I am right now looking up the engine and the wiring diagram.
To get ignition you must have:
1. A full oil level. The engine has a low oil level sensor that will kill ignition if the oil level is low.
2. A a working clutch brake pedal switch
3. Someone sitting in the seat.
4. PTO clutch dis-engaged
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Without all of the above you will not get ignition and the start solenoid will not cycle. (Start solenoid does not go through the oil level sensor.)

From what I can tell this is the 19.5 Hp Briggs and Stratton 42E707-2631-E1

I tried crossing the model number to a manual and the closest I could get was the manual with the same model number as yours except the last digit is a 1 vs a 3 Manual link below.

http://www.managemylife.com/mmh/lis_pdf/OWNM/L1003205.pdf

^^-

Mower parts are here:
http://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Riding-mower-tractor-Parts/Model-917258673/0247/1509200/10052812/00005?blt=06&prst=0&shdMod=917258673
Note the diagrams under the picture. Each of those thumbnail pictures will open a new section.

I think once you sort out the switches that you will get both the start solenoid and the ignition to work.
Since this mower has been sitting for sometime you should probably check out the PTO clutch gap. There are 3 spring loaded bolts / nuts and there are 3 slots in the PTO clutch. Static the gap in the clutch must be 0.020. Otherwise you will not only have starting problems but blade engagement problems. Adjust the 3 bolts/nuts until you get a 0.020 gap. That should make the switches in the PTO clutch work. Just look at the wiring for any damage around the PTO clutch also... A previously thrown belt can trash the clutch wiring.

After the PTO clutch your checkin Brake.clutch pedal switch and the seat pedal switch.
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I recommend you get the starter to work normally first and then troubleshoot ignition. Because except for the low oil level sensor they are common.

Safety switches can for troubleshooing only be bypassed by running a jumper wire from the white wire of the key switch to the starter solenoid white wire connection. If the starter works by doing this and does NOT work without the jumper... you have safety switch problems.

Hopefully with this information you can revive this mower from hibernation.
Feel free to ask any questions anytime I will stick with you here until we figure it out.
Thanks for choosing FixYa,
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My snapper ride on mower wont start i used mobile jump starter , unfortunatly the starter moter isnt even turning , , is there anything easy to check begore taking to mower repair facility ?

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