I have a minarelli v1 80cc polini kit with a mikuni vm20. I just swapped out the points for an hpi cdi and have the timing pretty dang close. My issue is that it is rough to start but once warmed up it is ok. I didnt have this issue with points and now with the hpi cdi it runs hotter. I am able to adjust the timing in either direction but it runs more poorly. I have spent many hours searching many forums and cant seem to find an answer. Some say not to use a resistor spark plug wire with the hpi cdi, which i am using a resistor, could this cause poor spark at low rpms? Does anyone have pointers? Rejet maybe?