Exact machineDo not buy parts from a broad answer.
Your exact machine, year, trim, VIN when needed, and the part number are required before treating any battery, starter, relay, cable, fuel pump, fuse, switch, sensor, or connector as the right fit.
Safety boundaryStop when the answer stops being enough.
Stop and get hands-on help if you smell fuel, see a leak, hear repeated backfires, feel hot cables, the starter stays engaged, or the machine could move unexpectedly.
Deeper pathUTV won't start guide
This answer links into the deeper guide before Traxer asks for the machine details that make the next step useful.
Read the guideWhy it stops hereHelpful first checks without pretending certainty.
Traxer reviewed this against the related no-start, cranks-but-won't-fire, and clicks/no-crank guides. It gives first safety checks, not a final diagnosis or final starter, battery, fuel, or electrical parts answer.