The information on this post solved my issues so I want to say thanks! This shifting issue has been driving me crazy for some time. I got hung up in the dark on the side of a mountain and decided to find the solution. My 350 FE has been shifting strange for a while, not going right into gear when you shift. Then getting stuck in gear and the blinking shift indicator requiring pulling out the tool to get to neutral- then shut off the bike and wait and restart hoping the blinking stops. I bought a angle sensor for 55 of eBay. Found the service manual link on this page, identified the location of the AS in the manual- general info, page 1-26, 2-7, learned about the ES system 2-8, 2-9, went out and tore into and replaced the sensor. Tools= socket wrench with small extension and. Allen wrench - 45 minutes. Test ride = completely different bike, slides into gear each shift. No blinking light! Prior to finding this solution I did som routine maintenance. My battery had a 60% charge. I filled the cells with acid and charged to 100% and the frequency of th blinking light decreased. Battery charge has something to do with how the ES system operates. Reading the service manual, the entire system is operated by multiple electronic components and a control box. Anyway thanks again. No getting stuck again- at least due to the shift issue.