i am putting a box of 064 parts in to a saw .the carb on it now is a wj 10a. also in the box is a wj 35 with the air hood on it. the backing plate in the box did not have the port for the wj 35.but it will not run with the wj 10a. it will pop a few times and ran for 1 sec,after 35 t0 40 pull starts my arm gave out. the wj 35 looks like it will work, but no port for the air hood?in my parts list it shows wj 41 48 35 51 42 52 and wj 65 . thanks