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Hey All, So in fixing my last problem with a valve opening while the piston was on a compression stroke, the camchain tensioner guide slipped into the crankcase. I didn't think this was possible, but as have not found the guide laying around my garage, and I forgot to reinstall the tensioner...

So... I am reassembling the cylinders, Pistons slide in and everything goes fine. I put on the Cylinder Head, again, no problem. On goes the camshaft, timing chain, tensioners, etc. just great. When I manually turn the crankshaft with my wrench, everything moves easily and without...

I will post some pics tonight, but generally speaking, how serious of an issue is pitting on the valve contacting side of the valve adjustment screws? They are cheap parts so i will most likely replace them, but is it critical to replace them prior to running the bike? They appear to be about...

For anyone in the Seattle area, and this may be known already, there is a wonderful bike shop: Seattle Used Bikes. They are a shop that focuses on import bikes and somewhat "specialize" in vintage bikes (i.e. yamaha xs's etc.) They are super friendly, quick turn around, and super...

First off, I have a 1980 XS400G (That's what the PO told the other PO who relayed that to me when I bought the bike at least) but the VIN is 3F8, which the forum says is a XS400G Special 2 3F8 12/79 1980. The PO posted on here for a bit (Hey Kyle), and it seemed as though there were some...