Hi, I have a problem with my 17.5mm carb on my 2005 yama Jog r, I recently purchased a stage6 pro replica to replace the broken stage6 street exhaust, bike was running fine with the street exhaust pulling approx. 55mph, now with the new exhaust it runs crap, no power bogs down when pulling off at full throttle, the jet that was in the carb was a 92 so I changed it to 100, still the same, so im thinking either a 95 or 98 jet would solve this. The scooter has a 70cc polini(I think) conversion and polini air filter. Any ideas on how to rectify this?
