Motorcycle Repair: revo 100 carburation, new spark, carburation

Question
hi there
i need some help. i have had my kids revo's at three different bike shops and dont seem to get to the bottom of my problem.
they get them to run fo two weekends at the most and then its back to the workbench. if i take the air filters off then they fine. if i leave the filters on they dont run at all.i have tried different jets ,float levels and new spark plugs. we do seem to have an issue with the needles in the carburettor though as no one can tell me how to set that.is there a manual on these bikes that can assist me and where can i get one from? any help would be great


Answer
Hi Tyrone,

I have no experience with this brand. In fact, I'm not even familar with the brand.

Try the place that sold you the Revo, or try searching on-line. I was able to get a few search results by simply typing "Revo motorcycles"

Respectfully,
Mark Shively