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Googledave
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Joined: 03/26/2017
Posts: 2

Completely confused here. I own a 1971 r50/5 with an 74 r75/6 motor that the previous owner swapped in.. it's a four speed. I also own an original 72 r75/5 that I'm restoring.... well I've riding the r50 quite a lot and the tranny started to leak from cover. Actually from the kickstart shaft. The previous owner only used the kickstart since he wired the starter incorrectly and couldn't get it to work. I since have resided and only use the starter. I've read a ton of post that scared the poop out of me that basically the kickstart shaft would fall into the tranny at any given moment. So I decided to go ahead and take out the tranny and take the cover off to rapair it. I took tranny off and cleaned all off to notice that the shaft protrudes from the cover about 5mm and has a groove into it which hold a circling..... no bolt with washer like I've seen some owners do.. the /5 I'm restoring has nothing and the shaft is actually flush with the outer cover... any ideas what this is? Thanks!!

mark_weiss
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Arizona
Joined: 11/17/2013
Posts: 172
It sounds as if someone has

It sounds as if someone has already made a shaft improvment. Rather than drill and tap the original shaft, maybe one of your bike's previous owners opened the gearbox and replaced the OE shaft with something that is probably better.

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Mark
qualitycycleservice.com

RickR90s
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Farmington Hills, MI
Joined: 11/28/2016
Posts: 63
FWIW, the original 4 speed

FWIW, the original 4 speed tranny is up to the task of using it on a regular basis.

The /6, 5 speed tranny's are the ones with the weak kicker shaft that bends over time with repeated use.

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RickR90s

Googledave
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Joined: 03/26/2017
Posts: 2
Ok great! And thanks!!!

Ok great! And thanks!!!

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