I have a 2 hp. jiffy stealth that is about 5 yrs. old. I think it was the first year Jiffy came out with the stealth. I have replaced the recoil spring twice. My questions is am I doing something wrong or is this a common occurrence?? I should add that it happened both times when my buddy used it and maybe he forgot to push in the decompression button. Would this cause the spring to break or not work??