Capital tree services ltd

Hi. Really struggling to identify this tree and it’s related problem of die back on the ends of branches. Any help would be great. Thanks.

Hi all. Having major problems with two ms201tcm saws. Both start perfect and run fine until put under load and hot. After this they with not start unless throttle is pulled full. Then if chain brake is on and you rev the throttle they will cut out and won’t start unless full throttle again whilst pulling the start cable. Then if they are left in the holder in the cherry picker they will drip fuel from the tank breather filter. Both do exactly the the same. Please help.