Other than a little deception in the owner's manual... I've been loving this bike. thanks for the assist... I also called Bueller, who gets to hear all of my mechanical tales of woe. He confirmed the washer. Remind me to tell you of the time I changed the oil on my new Wrangler, and the factory filter was on so tight, it left the gasket on the block and I didn't notice... oy vey!