Do "SF" rated oil have any special requirements I need for a Kayo S-200?

[Megadan]

Yes, SF is just a rating for API classification that has to do with additive packages and their affect on catalytic converters and other environmental factors. Zinc, Sulfur, and Phosphorus content all playing a roll.

Rotella T4 and T6 are both wet clutch rated and contain a higher zinc level than most typical oils on the market since they are not classified as automotive oils, and instead as general purpose oil. Until I swapped out to roller cam followers I was running T6 15w-40 in my Hawk (and even after) and it LOVED that stuff. I now run the same oil I run in my Royal Enfield 650, which is a 10w-50 Synthetic.