Hi my grandson has a 90 scrambler that he is having problems with. When you give it gas it will go and then will stop moving. When you let off the gas and then give it gas again it will move but only a short distance. It does not die. Do you have any ideas what can be wrong? seiv5

 

you might get more help if you post on the kids quads and other atvs topic. and it sounds like a fuel problem. is it belt drive?

 

have you checked the air filter if not that check the carb or fuel filter