So im a total newbie to quadzillas. Got this quad from a buddy and he said the stator was bad so I replaced the stator and decided to drop some oil down the cylinder just to be on the safe side. I put the oil down the cylider walk away and come back a few minutes later and its leaking the oil out of what I belive is a drain on the left side of the motor directly under the stator. It dosent seem to be a missing bolt because the threads are at the front of the plug like a drain would be. Its the same bolt size as the stator cover bolts. So my question is what is it for and can I or do I need to get a plug for it? I appreciate the help.