Re: New member needs help w/ 48cc 4-stroke (chinese)
I always have my drain hose to point down, if it was pointed up on yours I would say that is a vent and not a drain hose.
I have never owned one of those motors so I would need to see some good pics to see where to drain and fill. Usually the fill will have a dipstick and you unscrew it and set back down without screwing it back on to check oil level.
The drain usually is on the left lower side of the motor or underneath. And the fill usually is on the right. But who knows what the Chinese have done.
It is possible that thier is no screen, without being familer with this motor I am going by all other ATV/Dirt Bikes I have owned.