Okay guys. I bought a YZ426. There is a little hole on the cylinder/head on the right side (kick start side) of the engine, and the bike will spit a bit of oil out of said hole almost sequentially. It shoots far enough to touch the exhaust and sometimes hit your boot... does anyone know what that hole is for? I can provide pics if need be. The bike doesnt smoke, and has plenty of compression/power. Is that a breather or something? or is it safe to tap the hole and thread it for a bolt? I just dont want boiling oil on my leg, I dont mind adding a bit of oil to compensate for a leak or something, I just dont wanna burn the shit out of my leg!