First post here. Recently bought a CRF450 with a freshly rebuilt engine from a friend. Upon initial run in the stock auto cam chain tensioner plug/bolt has worked free and been ran upto half revs for 45 mins. I had done a few heat cycles before hand and never noticed the bolt missing, any oil leaking or odd noises. What damage could I have done if the cam chain was running slack? I don't think it has jumped any teeth as was running fine and oil loss was minimal and still well above the low mark after run in.
Is it possible to buy this plug/bolt on its own without a full auto cam chain tensioner? Is it just a standard bolt of a certain length that also seals oil in? Or does it push against a mechanism inside?
Sorry for my ignorance, thanks in advance for any replies.