I am in the process of a 100% rebuild of my vn750 motor and have finally gotten the parts I need to reassemble to bottom end. I have put all the transmission gears back in the their respective places, however I am not able to manually shift through "all" the gears by hand if the case is in the upright position. To get the 4th gear and idler to move and engage the next gear I have to place the crankcase down on it's side. When it is there I can get through everything with no problems. I did not put any grease ect. on the three little ball bearings that go into that gear and it seems it is those balls that is causing an issue. My question is, is this normal ? Does something line up differently when the other crank case side is on that makes the tranny work better. I don't want to put the crank case back together if I am not 100%: sure it is done right. :rockon:

assuming you haven't already tried this...with the engine upright rotate the output shaft while you attempt to change into the next gear. if you are then able to get it to change I'd say you've got it back together right.

Another thought assuming you didn't oil up the gears and shafts when you reinstalled them, is the internal shift mechanism (what actually moves the shifter forks) does like to be well lubed. The fork might simply not want to move easily.

heh '~' I reread your post...yes the other crankcase is instrumental in aliening the shafts that the gears ride on and I bet you have it together right

Well I have the whole bottom end back together. Once both case halves were together I was able to run through all the gears with no problems, so I would think it is assembled correctly. Now I have to get the top-end together.

Just make sure that the system rotates in 5th gear. It's very easy to put the 5th gear on the shaft inverted. If you have done this, the holes in the gear line up perfectly with the bumps on the gear below and the whole thing comes to a sudden stop. There are a couple of other gears that do this but for them it's normal. I almost made that mistake and fortunately figured it out in time. I hate to think what would have happened on my first test ride at speed if I'd left it that way.