Why is this motor blowing oil all over the rear shocks, out the tail pipe and all over the heatsink? This is not normal I am assuming. The inside of my chassis is a mess after 1 day of running. Does this motor need a rebuild? I am new to nitro rc's and jut got this revo used, its fast, but seems to overheat and not want to start untill cool, its tuned right, not too lean. I know about the tuning and such. Help please.