Yes Max, I know, I haven't looked at the Tecumesh needles, I tried it with the Briggs needles a few years back before the Viton tipped needles came on the market. I thought they would fix the problem but I have wasted hundreds of hours fighting them to get the odd one to work. At the moment I am trying to get some full crank motors for 24's but even those I am struggling with. One I have spent hours on, bore hone,new rings, new seals and I still can't pull start it. Drill starts ok and runs fine. I have 2 of them here at the moment doing the same thing. Might be I just no longer have enough strength in my arms