Here is a video of starting up and runing a MB290 engine conversion on a cold icy day. The engine cover blew off in the nite and the engine and test stand was covered with ice. well take a look how it starts and runs. Thanks For watching Capt,n P.S. Make sure you wear a firemans heavy leather glove when starting or stoping a engine like this. http://www.youtube.com/watch?v=c85M0Rq1TKE