Drivetrain service on #KTM “Baby-Duke” 390 after I measured the chain stretch and it was out of spec. Installed new rear spools, removed the old chain, old front and rear sprockets, removed 4mm of grime in the front sprocket housing, cleaned the chain guides and serviced the air filter. Now I must wait for new parts. I already changed the oil, bled the brakes and flushed with new brake fluid in the spring. 10k miles on this motorcycle so far!!

followup:

Hint: when degreasing filthy motorcycle or car parts, spray the grime with wd40! It is cheap, you probably already have it and it works!! Note: #wd40 is not a particularly good lubricant. But works great for cleaning, it displaces water, penetrates and even does alright as cutting oil.