So my 440 has been making a lot of noise when cold that goes mostly goes away when warmed up. It also chatters a bit when accelerating. So I decided to check the cam chain. It looked like it might be off a very little bit but I decided the re-set it for good measure. I started to tighten up the bolts that hold the gear on. Finer tight and i put a socket to it and applied some pressure. Dang thing snapped. Ok. No problem. It will be east to get out and replace. Started to take the cap bolts off to remove the cam shaft. Being careful I removed five of them. The last one snapped with just a bit of pressure. Ok. I went in the shop and removed the one from the gear with no problem. Spent the next hour flattening the cap bolt, center punch it and drill it out for an easy out. Put some Kroil in and tighten the easy out until it no longer move with some pressure. waited a bit and them using a heat gun I heated it until it was hot to the touch. Slight pressure to turn it, wait a minute, continue. then the dang easy out snapped. FML! I have a lot of time and money into this bike and now I need a new head. I just restored this one a few months ago. I am not sure where to go now. Do I find another head (only one new bare bones one for sale at $250 and no used ones I can find)? Try to find an entire engine as this one has the noise issues? Wait until I find a used bike for sale at a cheap price and use mine for the good parts? Sorry for the rant but I am really frustrated and disappointed. I have really enjoyed riding this bike this summer and now....