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I just tuned up my Briggs and now the RPM are way too high. This is a Toro that's about 12 years old. I have easy access to the spring simply by taking off the air filter. Anyone know what I need to adjust? Is it a matter of playing with the spring and linkage until the RPM drop? Or is there a...

Hi, I'm interested in purchasing a few diagnostic tools so that I can more accurately find the source of lawnmower problems. Is there such a thing as an air/fuel ratio sensor for a lawnmower? If so, can anyone recommend one? What's the best compression gauge? Any opinions? It would be really...

Hi, My mower starts up, but then quickly shuts down after one second. I've done the following: Used carb cleaner to clean out main jet holes. Used starter fluid to try to get the mower started. There is a crack in the primer bulb, but since I'm using starting fluid, does the crack in the...