Pure speculation, but I think the sight glass inconsistency is due to there being two chambers in the oil pan (hence 2 drain bolts), that are separated by a cast wall and a gasket as below. The sight glass appears to show the level in the rear compartment.
I bet if one turns off the bike while pointed downhill, more of the oil will have been pumped into the front compartment and the level will show low, and if one turns off the bike while pointed uphill, more of the oil will be left in the rear compartment and it will show high. Something to try tomorrow...
I bet if one turns off the bike while pointed downhill, more of the oil will have been pumped into the front compartment and the level will show low, and if one turns off the bike while pointed uphill, more of the oil will be left in the rear compartment and it will show high. Something to try tomorrow...
Attachments
-
54.7 KB Views: 92