Mr. McPheeters's weekend ended early, when he busted a piston on Saturday, sending his snowmobile to the bottom of the lake.
WSJ: Snowmobile Riders Race Over Water on Minnesota Lakes
2.
When a machine goes under, very little high-octane racing fuel gets into lakes, which are used all summer for swimming, fishing and boating, Mr. McPheeters said.
WSJ: Snowmobile Riders Race Over Water on Minnesota Lakes