What is this second hose on my lawnmower carburetor?
There is the fuel inlet and that I understand, But there is a softer hose coming out of the top of the carburetor which leads to some kind of plastic deviceup to the rear of the flywheel. Hard to explain without a photo. Too late in the day for a photo.
This is a Tecumseh engine and a Yardman mower.
- StpaulguyLv 78 months ago
It's a crankcase vent to suck blowby back into the carb so it can be burned and not vented to the atmosphere
- 8 months ago
This is a gas pipe!
- BertstaLv 78 months ago
It is a return hose that allows fuel back into the gas tank. When you press the rubber primer bulb and the carbie fuel bowl is full, the float stops any more fuel going in.
- Anonymous8 months ago
The second hose goes to the crankcase PCV vent.
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- Free AdviceLv 68 months ago
a picture is worth a 1,000 words