How to Rebuild a Kohler K321 Engine. The Kohler K321 is a single cylinder, four cycle, air cooled engine. Rebuilding an engine like the Kohler K321 is a way to ensure that it operates at peak performance, and that the engine has a long life....
Exercise cannot tighten your loose skin, but you can minimize the amount of loose skin you have. If you have excess skin, patience is key as you wait for your skin to adjust to your new size.
When you first start exercising, you may feel one kind of pain-a slow, burning ache in the muscles that is normal and not a cause for concern. This normal burning indicates you are reaching your anaerobic threshold, meaning you're at the limit of your endurance.The pain is believed to result from the buildup of lactic acid in your muscles, which occurs when your muscles are not getting enough oxygen (anaerobic means in the absence of oxygen).This burning is not an indication of an injury but that you're reaching your fitness limit.eeling sore after a workout does not mean that anything is necessarily wrong, especially if it occurs the next day. Unless you've actually sustained an injury, the pain will probably go away within a day or two, eventually producing lean muscle in place of flab.