Greetings,
Brand Noob member here. The site/forum looks like the lion share of knowledge, guidance, and advise for small gas engines. I have a Simplicity Express Tractor Mower with a Briggs and Stratton 15.5 HP Intek. It is a used Lawn Tractor (Simplicity Express 15.5HP) that appears to have been well cared for by the prior owner. It has many new parts, 4 Tires, Battery, Mower Blades. I purchased last May 2023 for $500.
Summary; the engine has developed a run, smoke (a lot), and cut off issue. I was not able to get past the issue and keep it running after about a dozen attempts.
Briggs and Stratton 15.5 Intek (Simplicity Express Riding Tractor Mower)
The numbers were a little hard to see, engine identification:
Model: 285707 (could be 28S707)
Type: 1150-E1
Code: 9903222D (It could be 99G3222
Problem(s):
- Engine will start and runs for about 15-20 seconds then Cuts Off.
- Whether using choke or no choke Fast or Slow carburetor setting.
- Has white smoke coming out of exhaust.
- There is what appears to be Fuel that is black and tainted with oil coming out of the exhaust pipe.
- I had noticed this liquid coming out of exhaust the last few mows but it was a small amount.
- Now there is a puddle of the black mixed Fuel/Oil.
The white smoke it produces is of a Ginormous amount in the 15-20 seconds of running.
The neighbors asked if something was a fire, however I couldn't see them for the smoke just hear them LOL!!!
*The last 2 mows engine would start, smoke white for about 10 seconds, then would run fine with no issues. Completed mow with no issues.
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I am very mechanically inclined and handy. I suspect/hope it is something in the fuel/air delivery regulation re: carburetor.
Ask:
- Advise on the potential problem(s) and recommendation for replacement or rebuild parts. If it is the carburetor I am inclined to do a full rebuild when the carburetor is apart versus replace a one or a few carburetor components.
- Best Parts store with good reviews/reputation, especially for getting the right part(s) the first time.
- Any other preventive maintenance advise. I have already purchased a fuel petcock on/off valve and new fuel line. As I was informed this prevents carburetor issues with above located (gravity) fuel tanks.
Thanks in advance for input and guidance!
-Rascal
