From https://legislature.maine.gov/statutes/29-A/title29-Asec1304.html

>>E. Unless the permittee is operating a motorcycle or moped, the learner's permit requires the permittee to be accompanied by a licensed operator who:
(1) Has held a valid license for at least 2 years;
(2) Is at least 20 years of age;
(3) Is occupying a seat beside the driver; and
(4) Is licensed to operate the class vehicle operated by the permittee.

So no…