I installed a Polaris temp gauge into my triumph just a couple months ago. Mine works perfectly. What i am wondering is did you get a plastic fitting with your kit or not. The temp kit i bought for my sled came with plastic fittings that required me to cut my upper radiator hose and install the new temp sender at that point. The new sending unit should have 2 wires on it. One that goes to the gauge and one that needs to be bolted to an engine ground. On the back of the gauge there was a wiring harness that needed to plug into the "jumper harness" supplied in the kit. the harness required some wires in the factory harness to be moved so it would work properly. Is your gauge a polaris one or is it aftermarket?