2007 Honda Recon engine noise?

I bought a used 2007 Honda trx250tm Recon last week $1200.This is my first atv.I’ve owned 2-stoke dirt bikes before but never a 4-stroke atv.My question is the rattling noise I hear from the engine sound normal?It sounds alot louder in video for some reason.(see video)

I took it on a 4hr trail ride and it ran great and everything worked fine.It will pop wheelies in third gear.But I did keep smelling a oil burning smell but no smoke from exhaust or oil leaking nowhere.I just thought it was Armor All burning off.Seller sprayed the whole atv down to make it look new.

Today I tried to find where the oil smell was coming from.About after 30min running I started to see smoke coming from the engine.It is steady stream of smoke.It doesn’t smoke any worse if I throttle it up.(see video)

https://www.youtube.com/watch?v=JCssLXBWWmc

2007 Honda Recon engine noise?

I bought a used 2007 Honda trx250tm Recon last week $1200.This is my first atv.I’ve owned 2-stoke dirt bikes before but never a 4-stroke atv.My question is the rattling noise I hear from the engine sound normal?It sounds alot louder in video for some reason.(see video)

I took it on a 4hr trail ride and it ran great and everything worked fine.It will pop wheelies in third gear.But I did keep smelling a oil burning smell but no smoke from exhaust or oil leaking nowhere.I just thought it was Armor All burning off.Seller sprayed the whole atv down to make it look new.

Today I tried to find where the oil smell was coming from.About after 30min running I started to see smoke coming from the engine.It is steady stream of smoke.It doesn’t smoke any worse if I throttle it up.(see video)

https://www.youtube.com/watch?v=JCssLXBWWmc