My daughters 50 from the day we bought it the smoke out of the exaust was always heavy, much more then my nephews t-rex 90 or the blaster. is it the 2-stroke oil or is it running to rich any help would be great.thanks

 

Unless you are fouling plugs then you are fine as far as rich goes. The 50's smoke alittle more than the 90 because of a few things that are different. Basically speaking, smoking 2 strokes are good. If you go to a better oil you can cut out some of the smoke. If you take the tank off and premix, then you can get it perfect.