I have a murray I found that was submerged during the storm last year. And when I got it running it runs waaaay over the rpms but shows no signs of problems except for the speed. I took it to my neighbor and he fixed the carb and said it was designed to run like that. Is there a way to fix it? And yes I tried the little spring and if you pull it forward or backward it just runs the same. Oh and my honda hr214 is in the shop and getting fixed.