What kind of oil is used in a 1991 Kawasaki KX 125 motorcycle?

From the OEM specs:

Transmission

Transmission 6 - speed

Transmission Oil 10w30 (factory recommended)

Transmission Oil Capacity 770 cc

First Gear 2.307 : 1

Second Gear 1.75 : 1

Third Gear 1.4 : 1

Fourth Gear 1.181 : 1

Fifth Gear 1.041 : 1

Sixth Gear 0.92 : 1

Overall Drive Ratio 12.611

Final Drive 12/48