Polaris ATV 2002 Owner's Manual page 71

OPERATION
Break-In Period
After the break in period the oil injection system provides the
necessary engine lubrication without the need for pre-mixed fuel.
Fill the oil tank when you refuel your ATV. If you don't serious
engine damage could result.
After the first tank of pre-mixed fuel has been used please verify that
the oil level in the oil tank has dropped, indicating that the oil pump is
functioning properly. If the level has not dropped, see your dealer for
oil pump bleeding and repeat the pre-mix procedure.
68
CAUTION