03 arctic cat 400. Won't start
 

It was clicking and have had to jump it by touch the starter solenoid with pliers starting it. That works but want to know if it's just the solenoid or more?

Simple test light or meter to see if power is jumping the solenoid posts. Also if battery voltage is low a solenoid can click and not be able to transmit enough voltage to the starter wire to crank.If the battery is ok and solenoid just clicks,then sounds like you may need a new one. Plus make sure the connections on the battery,solenoid and starter are free from corrosion that can interfere with starting.