Need help 2011 800 rzr

Took my dads rzr for a 5 minuet ride tonight……. Little did I know he drained the oil for an oil change!!! Light never came on dash and I didn’t think to check the oil. It makes a clicking noise in motor! Thinking a pushrod maybe? If you know what I could have done too it and cost to fix that would be huge help! Still runs idles and everything just slight clicking nose

Need help 2011 800 rzr

Took my dads rzr for a 5 minuet ride tonight……. Little did I know he drained the oil for an oil change!!! Light never came on dash and I didn’t think to check the oil. It makes a clicking noise in motor! Thinking a pushrod maybe? If you know what I could have done too it and cost to fix that would be huge help! Still runs idles and everything just slight clicking nose