Yamaha 450 EFI 14-Newer Dual Fan Kit for aftermarket wiring harness setup for key on fan on.
Yamaha 450 EFI 14-Newer Dual Fan Kit for aftermarket wiring harness setup for key on fan on. This wiring setup takes power for one key on power sources and takes it to 2 coolant line sensors for faster dead engine starting. Depending on how hot you got your coolant temps you might not have any fan running for the dead engine start but best case you will only have on small fan running at dead engine starting. This is a key on key off single power source setup. 684 combined CFM
