TGB Blade 250 ATV Quad Service Repair Manual, Page 135Get this manual
12COOLING SYSTEM Preceding page
E-1Measure thermal switch to confirm voltage be changed (12+0V)?
EKeep eng3000-4000 rpm and inspect cooling fan was operating after the temperature gauge over 3
Replace thermal switch
FConfirm the cooling fan was convulsion?
E-2Connect cooling fan terminals with battery (12V) directly to inspect its operation?