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I'm in total agreeement with you johnny. My AIH is gone. It's been down into the teens and single digits, and no running problems. The EPA is the reason for things like the AIH, CCV going into the intake, catylitic converters, less fuel going into the engine, etc..
Heck, I had to have my Ducati (motorcycle) re-mapped to run richer because it was running poorly from the factory due to a lean condition. I asked the tech why it was so lean from the factory and he said, "It had to be that lean to pass EPA regulations."
The EPA sure does give us a lot of work to do if we want to unlock the true potential of our engines. Sorry I'm off topic. I just got all worked up and couldn't stop.
dont feel bad... if you are off topic, i'm sure it's my fault..! lol..! as for the epa, all the lawnmowers and snowblowers we sell and work on have carbs on them that can not be adjusted, and they all start and run like CRAP compared to the older engines...! you want a new snowblower to run right, find an old machine with an adjustable carberator that you can get to fit on your new machine...!