OutdoorKing Repair Forum Forums Finding and Swapping For Sale 1970s Impala Hi-Arch: Most Unusual Model on Ebay.

I have seen a lot of this design on American Briggs and Stratton motors used in ride on mowers.

http://www.ebay.com/itm/Fuel-Cut-Off-Shut-Off-Valve-In-Line-Pet-[Censored]-Lawn-Mower-Riding-Mower-1-4-line-/272284947192?hash=item3f657292f8:g:0gkAAOSw-4BXbWAN

I thought the design was simple it's not like a Desmodromic Valve.