Zontes: Firefly 125 FIREFLY, Javelin 125I JAVELIN125, Mantis 125 MANTIS125, Rocketman 125I ROCKETMAN125, Scorpion 125I SCORPION125. Kiden: Aquarius 125 KD125-G, Aries 125 KD125-J, Pisces 125 KD125-K. The crankcase cover plug in a motorcycle seals access points or openings in the crankcase cover.