good people I have a mondial 150 4 years ago and at that time every so often burns the gasket of the cylinder cover, after that it has not brought major inconveniences despite being Chinese, the truth is that they are quite good or spend oil despite of the treatment that was never the best since the use on the road and the engine always changed the relationship to take it at less revolutions, but I only managed to go a little faster hehe I accept suggestions that it is not to change it not because I don't want to but not give me the budget