My UTV
2008 Yamaha Rhino Special Edition 700FI
Cooling fan over ride relay with 2200uf 50v capacitor...

The second switch from the left turns on the cooling fan ... it doesn't effect the normal fan operation.
The capacitor is from radio shack and placed on the lead going to the fan ... when turning on the fan I would see a 2v drop during spin up ... now its a .3v drop.
I wrapped the capacitor with tape and placed the relay in a plastic bag to keep it dry.
Remeber when using a capacitor ... the arrows point to ground.