What do the diode fuse do - ATVs

Question edited for clarity.
Question moved from Cars and Trucks to make model category.

The Solenoid Relay?

This? Test it.

https://www.google.com/search?q=2013+Polaris+Ranger+800+starter+relay

Wiring, these is also a 'Start Diode', not sure what that is about, a diode only lets voltage travel in one direction.

https://www.google.com/search?q=2013+Polaris+Ranger+800+starter+solenoid+wiring

The Polaris forums are a good source of information.

Service Manual

https://www.manualslib.com/manual/1068813/Polaris-Ranger-Rzr-800.html?page=368#manual

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You are not alone.

https://www.google.com/search?q=2018+Polaris+Sportsman+Highlifter+1000%2C+no+start%2C+no+electrics

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Videos

https://www.google.com/search?q=fuse+box+located+on+a+2007+Polaris+Sportsman+500+EFI

Manual

Polaris Sportsman 500 EFI Touring Owner's Manual [Page 105]

https://www.manualslib.com > ... > Owner's manual
1. Open the front box cover and. pull open the access door. · 2. Remove the suspect fuse from. the fuse panel. If the fuse is. blown, install a new fuse with.

I take help from online websites that have this service like helping in repair some like reliable-store have instant help.. others are a bit slow which I don't prefer... rest is up to u.. U can also get free manuals

Taped in the harness to the fan or near the relay for the fan.

could be the stator or rectifier. rectifiers are easy to test since they're just a diode bridge to convert ac to dc. you'll need a service manual to check the stator. check the bluetraxx forum for one maybe.

check the light switch for grounding

Maybe you dont have the right size fuse installed. It shouldnt get the wires that hot befor it blows the fuse.

see these diagrams. 2 different ones