Hey guys, long time lurker here! So yesterday while doing an oil change I also removed parts of the fairings. Upon closer inspection I discovered what appers to be small cracks on some parts of the engine / oil pan. The bike in question is a '91 VFR750F with 67000km that I've only had for ~3000 km. I've never seen these kind fo cracks on an engine before (although my mechanical experience is somewhat limited), so my question is how worried should I be? Is there anything I can / must do if I wanted to preserve the bike? Pictures of the cracks here: https://imgur.com/a/35wH1CU Thanks for any help in advance!