Put some dish soap on the rubber, push into the tank hole, slip 1x2 into the handle of the tank and over the new part and pry down pushing it into the hole. Took about 2 minutes.
Mistreated Briggs & Stratton 206 CC Engine on MTD Chipper
Removed tank and drained old gas. Removed and disassembled carb. Needed new gaskets and seals, and had to clean corn syrup glaze (separated ethanol) from bowl and everywhere else with carb cleaner. Throttle linkage was de-plating/rusty. Steel wool and WD40 got it moving again. Cleaned spark plug electrode. Reassembled, poured Sea Foam in the bottom of the tank and gave it a few pulls. Let Sea Foam sit for a while, then filled the tank with Premium. Blew white smoke for a minute then ran like new. Shredded for a while, then changed the oil.
old valve dripped gas when opened on cold sub zero day
old valve easily pulled out with screwdriver and pliers
install difficult due to 40 degree cold temp and bushing didn't want to squeeze into fuel tank hole
install required lots of liquid soap on bushing, which popped into place by using upward prying pressure from 3"X24" plywood braced into under-shelf of gas tank
used same technique to insert valve upward into bushing