You got it, the new parts are junk, that is why you buy a pack of 5 needles in the faint hope you might get one to work. I haven't had any problems with new primer caps sealing, just can't get the needles to work. Great mowers let down with shoddy replacement parts. I can get them to idle and have full throttle control, (just finished doing one for Tiger) but there is quite a bit of modifying bits and it is a bit lengthy to explain. Getting the kill switch to work is an art form and the design was not one of Victas famous moments