08-26-2014, 10:26 AM
I have learned not to trust the sight glass on my CB1100. Apparently the oil does not always flow back into the engine after turning it off at the same rate. I followed the instructions for checking the oil level in my owner's manual and I was shocked to discover the level was low (down to the lower level line) when I knew it was filled to the upper level line less than 200 miles earlier. I waited an additional 15 minutes to see if additional oil would drain into the engine (from the oil cooler?), but this never happened. I added enough oil to bring the level in the sight glass back up to the upper level line. After my next ride I rechecked the oil level (exactly as the manual defines), only to discover the lever is too high; the sight glass is completely covered. I haven't decided if it is worth draining the excess oil out or not yet.