MTD-B&S 6.75 HP help to stay running

[silver1]

I have a MTD or Weedeater walk behind that will start when pumper/primed and I can keep it running by pumping the bulb
on the carb. It does have a bowl on the carb. but hard to get to. Does it have needle and seat? The fuel tank leaks at
the seem by oil fill. What is a good sealant?

120602 0131 E1

LB

 

[reynoldston]

The best sealant I have found for gas is called seals-all. It comes in a yellow tube and can be bought in most hardware stores.

 

[davbell22602]

The best sealant I have found for gas is called seals-all. It comes in a yellow tube and can be bought in most hardware stores.

Does that hold around heat and gas? How will it hold up?

 

[reynoldston]

Does that hold around heat and gas? How will it hold up?

As far as heat go's I don't know. I have been using it for years on gas tank repairs on cars and trucks. One of the things I do find it works best on a clean surface. Its called Seal-All and if you would like to more just look it up on the Web. eclecticproducts.com

 

[Carscw]

I use KBS
http://www.kbs-coatings.com/Tank-Sealers-C29.aspx

 

[silver1]

The best sealant I have found for gas is called seals-all. It comes in a yellow tube and can be bought in most hardware stores.

$5.99 @ Autozone. Thanks

 

[silver1]

I use KBS
http://www.kbs-coatings.com/Tank-Sealers-C29.aspx

Thanks for the reply......That stuff is for big jobs!

 

[Fish]

Just replace the tank with a good used one, if you got one off of e-bay it would cost just a little more than the sealant that you will buy. Just try removing the nut on the bottom of the carb, and cleaning all of the holes in it first. Don't fuss with the bowl much, with luck it will stay stuck on the carb while you do this. The little holes
in your nut/jet will likely be scummed over a lot with varnish goo, partly from the molten baggie juice from the gas cap area. The molten plastic will eventually destroy
your engine, so you may want to get that new/used tank soon...

 

[Fish]

Briggs Gas Tank 699374 | eBay

Well around $20 or so, you could likely find one cheaper locally.

 

[Rivets]

To solve your carb problem, you are going to have to remove the carb and give it a good cleaning. When you reassemble it make sure that you install a new float needle and seat. Briggs part number 398188. What has happen is the seat has expanded and when the needle shuts off the incoming fuel it does it to soon and the level of fuel in the float bowl is not high enough for proper operation.