I was wondering if there were any tricks in looking at how bad a bike has been used or not, a guy at my local shop said to try to stay away ffrom the bikes that say "never raced" because more often then not that means the guy didnt know wtf he was doing and was just riding it not taking time to change oil, top end, chain and exc. He also said to watch out for bikes that say they were bored out for more cc's and stuff, he said the cr125 stock piston were made to last and only needed o ring replacements everyonce and awhile, are there neways of checking a bike to see how it was takin care of, like checking the air filter or oil filter or somethin, i have no idea where those 2 things were, so if it does work by using one of those, tell me where they are on a cr125, i also herd some ppl put new plastic covering on bikes to make them look better, i just need to know the hints like i have said, so ne tricks you guys know of, plz post them