I HAVE A CUSTOM BUILT PERFECT FIT SOCKET TO REMOVE THE THERMASTAT CAP ON EVINRUDE ENGINES. I KNOW THAT THEY QUIT MAKING THE ENGINE BUT THERE ARE STILL A LOT OF THEM IN USE AND NEED THIS TOOL. I HAD IT MADE WHEN I HAD MY ETEC 200 WHICH I SOLD AND FORGOT TO GIVE THEM THE WRENCH. I ALSO HAVE A GALLON OF 2-STROKE OIL I'LL THROW IN WITH IT.