Hey guys I just recently got a rm125 that runs amazing very quick bike. I love it. But when I got it it has a stripped drain bolt so I retreaded and it doesn't leak. But I fill it to the "fill hole" and run it for 5-10 min bring it back in the shop and it's low. At least a half cup most of the time. No signs of it leaking from the case anywhere and no water In the rads. Is there a trick I don't know about. Maybe a diff fill hole? Any suggestions appreciated thanks.