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NotTaR of small Gasoline Engines and Rotary Lawn Mowers : Lawn mower fuel tank leaking            
 Copyright © 1994-2007, Samuel M. Goldwasser. All Rights Reserved. Reproduction of this document in whole or in part is permitted if both of the following conditions are satisfied: 1. This notice is included in its entirety at the beginning. 2. There is no charge except to cover the costs of copying. I may be contacted via the Sci.Electronics.Repair FAQ (www.repairfaq.org) Email Links Page.

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Lawn mower fuel tank leaking

Fuel tanks can leak for a variety of reasons including defects in manufacturing, abuse, corrosion, etc. However, before you buy a new tank, a couple of notes:

  1. If this is on an Briggs and Stratton engine there are known problems with some models - check with your local small engine repair shop as it may be under a (hidden) warranty.

  2. A tank that is filled to the top may appear to be leaking when in fact it is just seepage from the cap vent hole. It may even attempt to fool you into replacing the tank by appearing to come from the seam!

If the tank is truly leaking, DON'T use the mower and drain the gas - you don't want to take chances with a possible engine fire or worse.