[Dave]

ok so my 83 cm 450c has a really bad hangup at around 4k which goes away completely with more choke so i figure i need to up the jets. problem is after lots of searching i cant find anything resembling a stage one jet kit. anyone know where i could find one or approximately how much id have to go up? they are keihin carbs and according to bike bandit it has a #38 slow jet, a #115 main jet, and a #72 fast jet. help?!