The official book the Washington motorcycle knowledge test is based on — where to get it and how to study it.
The Washington State Department of Licensing publishes the current motorcycle manual on its official site. Always study the latest edition.
Every question on the Washington 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 Washington State Department of Licensing, 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. Washington uses two knowledge tests — a 50-question motorcycle permit test, then a separate 25-question endorsement test.
Source: Test details are confirmed on the official agency page. Washington uses TWO knowledge tests: a 50-question motorcycle permit test, then a 25-question endorsement test. Passing scores are not officially published; ~80% (permit) and ~68% (endorsement) are third-party estimates.