Hi :waving::waving:if you means the gears a clonking when changing ,,this is the way 1500 are ,,The goldwing has never been known for its smooth gear changes ...unless you are really light,small and no strength ,then an electric is not worth the money ,,there are posts here if you search that tell you the easiest way to get the bike on the main stand ...
If the transmission is really "Notchy" and/or shifts hard, it's probably the oil you are using.
I don't want to start the oil debate again, but just try an oil change with Honda oil, see if it makes a difference. If not it's only a couple of dollars different than cheap oil so you're not out very much cash.
My '89 shifts very smoothly, with only the downshift to first while rolling having any clunkiness to it.
It's hard to get a clean quiet shift with the Wing unless you match speeds with the throttle, on upshifts the drop in rpms is around 500 for each gear, kick it up 500 for down shifts. A little preload on the shift lever and a speed match and it goes quietly. Different oils can affect the notchinessas Tony said.
Col, one of the problems on the Wings is the hardiness of the transmissions. They use large gears with big dogs to transmit all the torque so shifting is slow & notchy.
Try preloading the shift lever prior to the shift with your foot (about as hard as you can without actually shifting it). Then when the clutch is momentarily pulled in the shift will be very quick. That preloaded shift allows the sliders to move & engage the next gear before the engine/trans shaftRPM has a chance to change much so the gear match speed is closer. Try it & see if it helps you, it sure does on mine..