el_minkey

Definitely got my eye on this. I'm hoping to do something similar in the not too distant future. Can't wait to see more progress on this. :thumbup:

So, maybe it's a shot in the dark, but I'm looking for a throttle body for a 77' 620. The carburetor is a Hitachi DCH 340. Not sure if any more info is needed...

Well, I dropped the tranny again, popped the rear case off (that was quite a chore), got all the rods lined up in neutral, put the striker rod where it looked to be neutral and just a little further clockwise the fifth/neutral column, slid the case back on while keeping an eye on things inside through the mainshaft outlet, got it all set and moved the shifter over, and VOILA! IT WORKS! I hope it wasn't just luck getting it the first try. I'll definitely try a another one or two times before I seal it up just to make sure I've got it down. Which brings me to another question: Is there a certain sealer that I want to use, something specific to transmissions? Or will plain old RTV silicone do the trick? Thank you again for taking time share your knowledge. This has been a great learning experience : )

Thank you, Sir, for your help. I really appreciate all the info and the quick response time : ) I do have a question though: Will it be obvious where the neutral position is for the shift rods? I suppose just having the case off may answer that question, but I thought I'd ask just in case.

I have a 620 with a 5-speed (pretty certain it's an FS5W71B). My brother-in-law and myself dropped the tranny the other day to replace the clutch. Well, to make the dropping easier, we tried removing the striking guide, which turned out to be a bad idea apparently. Not only did we find out you can't remove it without disassembling the tranny, but it appears that we messed something up. I'm not really sure what all we did wrong, but with the transmission now back in place, the only time we can get the stopper guide pin back into it's place is when the control lever is in the third gear position (though I'm guessing that the tranny is not actually in third gear). Could we have disengaged the striking lever from a shift rod? Can this be corrected without dismantling the tranny? My knowledge of transmissions is very limited, in case that isn't obvious. Any help would be greatly appreciated.