How to walk into the DOL office prepared and pass the motorcycle knowledge test on your first attempt.
Days 1-2: read the Washington Motorcycle Operator's Manual and this study guide. Days 3-5: take a practice test each day and review every missed question, focusing on cornering, braking, and lane position. Days 6-7: take full practice tests until you pass comfortably, and review the Washington-specific laws (helmet, eye protection, 3-second rule, lane splitting).
Skim the cheat sheet, take two or three practice tests, and spend the rest of your time on your weakest topics. Lock in the basics: both brakes to stop, Slow-Look-Press-Roll, a 3-second following gap, and the universal helmet law.
Two- and three-wheel are separate. A two-wheel endorsement does not cover a trike or sidecar rig — each needs its own training, tests, and endorsement.
Permit restrictions. On an instruction permit you cannot carry passengers or ride at night, the permit lasts only 180 days, and you may hold just two in five years.
Eye protection unless a windshield. Washington requires eye protection only if your motorcycle has no windshield — but the manual still recommends a face shield.
Three-day wait. Even after you pass, you must wait three business days before the endorsement can be added at a licensing office.
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.