I found a deal on a 05 sportsman. Owner said the engine knocks and it burns oil. around 3000 miles on it. He installed a new spark plug and said it ran better… what would be causing it to burn oil? valve seals? I wish i could run a compression test…he said he was going to get a different motor for it, he said he just doesnt have the time.

i think i can talk him down to 1900
what is everyone’s thoughts?