Preflight engine and airframe. Filled header tank to 3 gal. Started engine for first time ( other than factory test cell time). All Temps normal. No leaks noted. Ran for approx 7 minutes. 1500 RPM max. Idle at 670. Idle mixture is lean. No rise in rpm at Idle cutoff. Will adjust. Checked ignition operations. Turned off IGN #2 and engine quit. Turned off IGN #1 and engine continued to run normally. Will troubleshoot.