Not sure which category this would fit in so if it needs to be moved please feel free to. I have a CB450 K7 which I rebuilt the carbs and petcock and replaced the coils, plugs, and points among other things. When trying to accelerate I get to about 40 mph and start to lose power no matter what gear I am in and it eventually dies. I have noticed it happens more often going uphill - not sure if that matters. I made sure there was a full tank of gas and tried switching to reserve to avoid a possible clog in the main section of the petcock. I have also set the timing properly. Any suggestions/help is greatly appreciated.