bought a proarmor tether for my 1100 turbo. been fighting with it to get it to work. even downloaded the instructions for the cat tether install. At this point I am assuming that the tether for the fourstroke it not the same as the 2 stroke models. Is the 4 stroke looking for a normally closed type tether? I really like the aftermarket tethers better than the cat ones. Has anyone had any luck installing one on thier 4 stroke?