I have a Bolen BL 100 trimmer and when I put choke lever in partial choke or run position and try toaccelerat it just dies?

Your carb is about the size of a grape and it needs to be cleaned or rebuilt. One thing to try before taking it apart or to a shop is to mix SeaFoam carb cleaner with the gas per the instructions on the can, dump current tank and refill with this new mix. Start the trimmer and keep it on full choke and throttle as well as you can to give the carb time to get a taste of this new mix, you have a about a 1:4 chance this will save you a trip to the shop. I rebuilt one of these little carbs once, just once.