What gas oil mix you using 25 to 1, 50 to 1?
Used or new? you build it or a dealer? how many cc 49 or 66/80?
we need more info to help
your right MBR I missed the 49cc comment, sorry
I'm wondering if it could be the oil gas ratio, any thoughts?
and yes let's see a pic to few are the women riders I've met