I have an '03 ST1300 which I've only owned for a few weeks. After I bought it, since I didn't have any service records, I took it to a experienced Honda dealer and had them change the fork seals and bushings and fork oil, change the engine oil to Honda synthetic oil, had the brakes and clutch bled and replaced, had the rear gear oil bled and replaced. had the coolant flushed and replaced, and had the valves adjusted. Even before the full service, and since the service, I occasionally hit a false neutral on the 4-5 shift and a very few times on the 3-4 shift, but that's rare. I've wondered if an occasional false neutral on the 4-5 shift is a known issue, or if I may have some kind of gear problem. Anyone with any information regarding this would by very much appreciated. I intend to keep this bike (I've had over 20 in the last 40-plus years), and I don't want to possibly shorten the life of my transmission.
By the way, I've had multiple bikes from all of the big four Japanese makers, as well as 3 Harleys and a Triumph. I find the ST1300 to be a very enjoyable bike to ride, I find the power and very smooth torque curve very satisfying, and the only problem that I feel a real need to fix is a better seat, as mine is much too hard for any long rides.
By the way, I've had multiple bikes from all of the big four Japanese makers, as well as 3 Harleys and a Triumph. I find the ST1300 to be a very enjoyable bike to ride, I find the power and very smooth torque curve very satisfying, and the only problem that I feel a real need to fix is a better seat, as mine is much too hard for any long rides.