Hey, I recently got a new 20mm mikuni carb (VM20) as mine was having a few leaks thanks to broken gaskets. I put in all the same jets. worked great. few weeks later, my cylinder needs replacing due to broken rings and a chunk out of the barrel lining (obviously not down to the carb being changed). I put on a new standard 125 barrel last night, after about a million kicks it started up for a bit (my battery is dead, so no button start) Just basically want to check what you would suggest jetting wise as I do think it's a carb problem, spark is great so I doubt it's electrical. It's a 125 typhoon, 180 varitor, kundo exhaust, vm20 carb, cone filter. Nothing special, just a cheap run around so I don't spend so much in petrol as my car loves to drink it. Cheers guys