I would say leave the chain job until you get home as long as it's mot rattling. An easy way to check is to remove the chain spanner and check if it's at the end, but first remove the spring otherwise it will jump out of position. How many kilometers has the chain?
You cannot check compression on a 660 due to the automatic decompression built-in in the camshaft which only stops when the engine runs at more than 650 rpm if I remember correctly. You can take a leak test though. Works about the same, put pressure on the combustion chamber through the spark plug hole and see if it drops. But this will not tell you if your oil scraper ring is stuck in the groove. But then again, you should see blue smoke if this is the case. And if the bike is running ok and has enough power, probably the piston rings are ok.
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Fred, XTZ660, Holland.
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Fred, XTZ660, Holland.
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