Manx Grand Prix newcomers will lead out Monday's opening practice session, after Saturday's action was cancelled due to heavy rain around the course.
The session, which will be reduced in time, will start with the event's 60 newcomers completing a speed controlled lap of the Mountain Course.
The newcomers will be followed by the Senior, Junior and Supertwins.
Over 500 machines across all classes are scheduled to participate in this year's races.
The session will get under way at 18:20 BST.
American racer, Chris Sarbora, had hoped to get his first closed road experience of the Mountain Course.
"It was a real shame not to get a few laps on the bike but we did at least get out in the morning with Chris Palmer on a coach and he gave us a real insight into racing the course.
"I'm just raring to go on Monday now," he said.
The final session will see the Classic Superbikes, Junior Post Classic and Lightweights take to the course.