Topic: 1972 Honda cb 350 four jack shaft install into starter clutch

[pablo63]

I did a practice run for case assembly & had some difficulty getting the shaft to go through the starter clutch but after 15 min of fiddling it lined up .I then seperated the cases and applied hondabond & torqed to specs
Now after hrs of trying I just cant get the shaft into the starter clutch as it seems to be unable to line up properly .Just wandering if someone has had this problem  .& where did I go wrong .
  Thx

[Flyin900]

What’s a jack shaft? Some pictures would help visually see what issue your dealing with there.

[bryanj]

Primary drive shaft, problem is probably a tiny "kink" in the primary chain you can try slighlty rotating crank back and forth to see if start clutch/primary gear move to to the rear a fraction.
Occasionaly you get one the is awkward and usualy responds to the mechanic going away for tea/coffee!

[rotortiller]

What’s a jack shaft?

It's a close cousin to the "Johnson Rod". lol

[Tracksnblades1]

Occasionaly you get one the is awkward and usualy responds to the mechanic going away for tea/coffee!

Works almost every time with very large double reduction planetary covers too…more troublesome ones you may just have to go home and try again in the morning…

[HondaMan]

If you're talking about the Starter Reduction Gear on the 750...
you must install the gear into the pocket first, then rotate it to the left a little until the hole in the gear aligns with the hole in the case. Then set the shaft in, put the flat washer on the top, then install the cover.