I was using my Redmax 7001 blower a week or so ago and it sounded like it sucked up something through the impellar but that isnt likely due to the screen so I shut it off to look at it and won't hit a lick and is noticeably harder to crank. I haven't had this blower very long , I aquired it from a trade on a trailer. The time I have had it it started easily and ran smooth until this point. I'm thinking a seized bearing or something serious. Any thoughts? I have been running Opti2, and none of my other 2strokers have been acting up. Thanks in advance for any replies.