Topic: 550 transmission differences

[KrautKoffin]

Were there any? I've got a 75k bottom end that I'm planning on using and a guy locally has a 77f bottom end for sale. My question is are there improvements from year to year?

[dave500]

the clutch basket and last top friction disc changed along with a thicker two piece steel disc in the middle of the stack on the later models, i think youll find they are both the same?

[bwaller]

Yes apart from the clutch, the gearbox's should all be alike.

[Deltarider]

According to p. 17 of my paper copy Parts List CB550F2 [1978-07-20] (BTW, am I the only one that has one?) clutch was modified between serial number 1139188 and 1139189. I just made a scan (1,3 Mb) but don't know how to put it here.

[LesterPiglet]

According to p. 17 of my paper copy Parts List CB500F2 [1978-07-20] (BTW, am I the only one that has one?)

If that isn't a typo, yes.   

[Deltarider]

Thanks Lester, corrected previous post.

[KrautKoffin]

Thank you guys for the response, I'll just keep my 75k trans for now!