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'04 ZX6RR, was a street bike for ~12k mi, now a TD bike. It seems to be drinking oil. After ~5-6 TDs, the oil level went from middle of the sight glass to out of sight. Took maybe .5-.75Q to bring it back.
Coolant is perfectly fine and no oil latte. Leakdown test #'s seem good: 97%, 96%, 97%, 95% (cyl 1-4, in that order). The only clue I've seen is what seems to be slightly excessive oil in the air box. Its not serious puddling, but enough to weep around the #1 intake boot and the drain hose nipple. There are no drips and no blue smoke.
Problem? Or keep humping the bike into submission?