The official book the Oregon motorcycle knowledge test is based on — where to get it and how to study it.
The Oregon Driver and Motor Vehicle Services publishes the current motorcycle manual on its official site. Always study the latest edition.
Every question on the Oregon motorcycle knowledge test is drawn from the official motorcycle operator manual — a different book from the regular car driver handbook. Always study the most recent edition published by the Oregon Driver and Motor Vehicle Services, because rules and numbers change between revisions.
Read one chapter at a time, then test that chapter with the practice test before moving on. Pay extra attention to chapters on gear, the pre-ride inspection, hazard awareness (SEE), and emergency maneuvers — these are the most heavily tested sections. Score 20 of 25 correct (80%) to pass.
Source: Test details are confirmed on the official agency page. 25 questions confirmed on the official page; the manual states you must answer 20 correctly (80%) to pass. To add an endorsement you must complete an approved Team Oregon rider-education course.