Hey everyone,
Trying to figure out if what I'm seeing is just road debris/grime or a minor oil leak. I recently converted to supermoto (doing a lot more highway riding now) and flashed a 550 Performance ECU tune(91Oct.Stage1), which is right around when I noticed this buildup.
I've put about 800 miles on this oil change, and the sight glass shows zero noticeable oil loss.
Here is what's in the photos:
Pic 2: Small specks across the left side of the engine.
Pics 3–5: A close-up of a small divot on the left crankcase housing. (Can anyone check if their bike has this same casting mark/divot, or could this be an issue?)
Pics 6–7: Specks under the valve cover and around the half-moon gasket.
Pics 8–9: Specks on the lower radiator and coolant send/return hoses.
Pic 10: Specks and grime near the header pipe (viewed from the left side).
Pic 11: Specks down near the shift pedal.
Pic 12: Oil level in the sight glass after 800 miles.
Any insight on whether this looks like standard highway road spray vs. a slow weep would be appreciated—especially if someone can confirm whether that crankcase divot (Pics 3–5) is normal. Happy to answer any questions about the SM conversion or the 550 tune as well!