Lawn mower. When I push primer bulb, gas comes out hole on side of air intake.

[Gandalf]

Hi,

I have a 9 year old Weedeater Quattro push lawn mower from Walmart with a Briggs and Stratton 4 horsepower engine.

It runs fine once it starts. I was checking it out around the primer bulb, thinking I might need to replace it, since I have to pump the bulb about 10 times to get any gas into the carb.

What I found was that when I push the primer bulb, gas gets pumped out of a small hole on the left side of the air intake tube, just to the left of the primer bulb, and runs down onto the gas tank, instead of squirting into the carb. If I hold my finger over this hole and pump the bulb, gas starts to squirt into the carb after about 3 pumps.

The hole the gas is coming out of looks like it used to have something over it, since the metal around it is very clean and shiny.

In the photo, it is the thing that looks like a small pipe jutting out to the left from the bottom of the air intake.

Maybe I can just plug this hole up and everything will be fine again !

I have attached a pic of the hole. It is right behind the closest philips head screw.

Anyone know what this hole is for? And should it have something over it?

Thanks a million.

Gandalf

 

[GetTechnicalWithJd]

That hole should be plugged with a metal ball.

The hole is made when they machine the carb.

Replace the carb.

 

[Gandalf]

That hole should be plugged with a metal ball.

The hole is made when they machine the carb.

Replace the carb.

Thanks for that information. :smile: