2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 119Get this manual
28Connect the positive cable to the starter motor; then connect the ground (negative) cable to the crankcase29Fill the engine with the correct engine oil (viscosity and quantity) 26Place the exhaust header pipe up to the engine with the existing grafoil gaskets and springs
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30Install the battery and the battery hold-down bracket31Connect the positive cable to the battery first; then the negative cableConnect the high tension lead to the spark plug32Install the seatCH055D
33Adjust the auxiliary brake to within specifications34Remove the tie-down straps; then remove the ATV from the support stand35Tum the gas tank valve to the ON position