hoi alfredo,
the problem might be inside the carburator...problebly the carburator has dust or dirt inside...
the thing you best do is,take the carburator of the motorblok (the 4 screws), disconnect the bottom with 2 screws
then you might see the little bit of orange u form plastic with a little pin,yeah disconnect the pin
(watch out,even a more little tiny pin with a black point is inside the pin witch one you just disconnected)
you got to remember you got to fix it back when its all cleaned like you disconnected it...
when you take out al te little parts use a air-compressor,and blow al the chanels where dirt or dust can be,
do it very good and desent...
now put the tiny little black pin in its place,take the orange u form and connect it with the pin...
you got to place the bottom of the carburator with the little pipe to its right...
turn the 2 screws tight...
never let any dirt in the open motorblok...place the carburator back on its place,turn the 4 srews tight,bud not with al your power you have,just tight...if you use to many power the screws will be broken, and then you have a broken srew in your blok...
good luck
