My 2014 Hyperstrada had some work done on the engine ( a cracked crankcase was replaced ). The engine seems to run fine and there is nothing that feels 'off'. However, since I brought the bike home, I have noticed that the oil pressure warning light, that goes off when the engine is first started, comes on whenever the engine RPM drops below 2000. Is this normal and have I just noticed this now or is something up with the sensor or the oil ?