This is our Yamaha 450 EFI 09-Newer aftermarket wiring harness key on fan on single fan coolant line sensor kit for faster dead engine starts.
This is our Yamaha 450 EFI 09-Newer aftermarket wiring harness key on fan on single fan coolant line sensor kit for faster dead engine starts. The EFI with key on fan on big single fan setup have very slow dead engine starting. This is our fix for faster starting we are taking that key on fan on power and running it through our 200 degree coolant line sensor so your fan waits until 200 degrees to run and will run until coolant temps drop to 180
