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I have a LT1500, 420 cc lawn tractor' model 247.288820. Last…

Customer Question
I have a LT1500...

I have a LT1500, 420 cc lawn tractor' model###-##-#### Last summer, it would stall out with a 1/2 tank of gas. I changed the fuel filter, changed oil and air filter. Nothing worked, but when I refilled the tank to full, it worked again. This year, that's not working. I put on a new gas line, insulated it thinking it was vapor lock. I replaced the fuel rollover valve, I actually took the gas cap off to see if that helped. I checked for spark on the solenoid. The mower will run for approx. 40 seconds and stall. It will start immediately again, however I let it set for 40 seconds and it runs again for 40 seconds. I see this tractor on a lot of uTube videos for this same problem.

Mechanic's Assistant: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean?

I have brand new summer blend 87 octane in the tank and it is full.

Mechanic's Assistant: Do you plan on doing the work yourself?

I hope to

Mechanic's Assistant: Anything else we should know to help you best?

I have talked with several of our mechanics at work and have tried their suggestions, like seeing if the fuel runs better when I raise the gas line and to try Seafoam to clean the carburetor

Submitted: 2 months ago.Category: Small Engine
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Answered in 5 minutes by:
5/31/2018
Technician: MowerDocMD, Small Engine Technician replied 2 months ago
MowerDocMD
MowerDocMD, Small Engine Technician
Category: Small Engine
Satisfied Customers: 343
Experience: Sole proprietor of LaGrange Small Engine
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Hi, my name is ***** ***** I am here to help you! What engine do you have?

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Customer reply replied 2 months ago
420 cc MTD is what it says. Craftsman LT1500
Technician: MowerDocMD, Small Engine Technician replied 2 months ago

Well, the engine was made by Kohler or Briggs probably. Somewhere on the engine it will have it's own model and serial number. Can you find those?

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Technician: MowerDocMD, Small Engine Technician replied 2 months ago

OK, I see what you mean now. I'm not sure who made this engine, but, never the less, what is the part you call a "fuel rollover valve"?

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Technician: MowerDocMD, Small Engine Technician replied 2 months ago
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