I own a Craftsman 28M707 riding mower with a Walbro carburetor.
Gas is leaking into the air filter housing. I removed the carburetor and disassembled it (removed the bowl, main jet, needle, float).
I cleaned it using my ultrasonic cleaner, re-installed on mower. No change, it still leaks.
The float wasn't full of gas so I assumed it was OK and didn't have a crack or hole in it. After reassembly the float moved freely. The needle didn't look damaged.
So I am not sure what to do next. Obviously want to avoid buying a whole new carburetor. So several questions:
- Is it a bad needle seat?
- Could it still be the float?
- What else would cause gas to leak into the air filter housing?
- What else should I do to troubleshoot the issue?
Thanks!
Gas is leaking into the air filter housing. I removed the carburetor and disassembled it (removed the bowl, main jet, needle, float).
I cleaned it using my ultrasonic cleaner, re-installed on mower. No change, it still leaks.
The float wasn't full of gas so I assumed it was OK and didn't have a crack or hole in it. After reassembly the float moved freely. The needle didn't look damaged.
So I am not sure what to do next. Obviously want to avoid buying a whole new carburetor. So several questions:
- Is it a bad needle seat?
- Could it still be the float?
- What else would cause gas to leak into the air filter housing?
- What else should I do to troubleshoot the issue?
Thanks!