For fun and practicality, we’ll start with this weed whacker bike. It uses an Echo SRM-210 trimmer motor. The pedals of the bike were replaced with a second sprocket driven by a chain attached ...

To get it going, a gas-powered Echo weed eater motor needs fuel and a spark to ignite it. Gasoline can go off, so if it's the first time you've tried the tool since winter, drain and refill it.