RZ vs ??? Unknown transmission parts

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evan_calgary
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Joined: Tue Nov 12, 2013 2:34 am

RZ vs ??? Unknown transmission parts

#1 Post by evan_calgary » Sat Feb 17, 2024 4:40 am

Hi guys, bought a bike off a fellow forum member here.

Putting the motor back together and the transmission has me stumped. The gearsets in the transmission are different than another spare I have here but i'm not 100% positive my spare is a RZ.

Does anyone know which transmission fits a RZ and what the other transmission is for? RDLC maybe?

Trans in motor:
long shaft, 220mm long, 20mm clutch shaft end nut threads
large gears shaft, 210mm long.
circlip space on bearing by front sprocket on outside.


My trans here:
long shaft, 217mm long, 18mm clutch shaft end nut threads
large gear shaft, 199mm long.
circlip space on bearing by front sprocket on inside.

My dims are as close as I could get, using veniers that are 150mm long to measure.

I noticed this when trying to fit the bearing clip in case into the big bearing slot by the front sprocket. Figured it may have been put on backwards until looking at another transmission.

Pics here
https://drive.google.com/file/d/1gn0FDx ... drive_link
https://drive.google.com/file/d/1mwRaXl ... drive_link

evan_calgary
Posts: 1375
Joined: Tue Nov 12, 2013 2:34 am

Re: RZ vs ??? Unknown transmission parts

#2 Post by evan_calgary » Sat Feb 17, 2024 4:46 am

One answer that would help me the most up front is what is the ID of the clutch hub nut for the RZ?

silverstrom
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Re: RZ vs ??? Unknown transmission parts

#3 Post by silverstrom » Sat Feb 17, 2024 4:36 pm

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Last edited by silverstrom on Sun Feb 18, 2024 3:12 pm, edited 1 time in total.

evan_calgary
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Joined: Tue Nov 12, 2013 2:34 am

Re: RZ vs ??? Unknown transmission parts

#4 Post by evan_calgary » Sat Feb 17, 2024 8:06 pm

Looks like a clean install and even coating of yamabond John!

I'm mostly in need of the dims of the clutch hub nut ID to confirm that this other transmission is not RZ. Given the orientation of the clutch hub bearing im thinking its not for a RZ.

evan_calgary
Posts: 1375
Joined: Tue Nov 12, 2013 2:34 am

Re: RZ vs ??? Unknown transmission parts

#5 Post by evan_calgary » Tue Feb 20, 2024 12:50 am

For anyone that runs into something like this again albeit unlikely I think its been figured now.

The RZ transmission as the 20mm nut ID and the roughly 220/210mm shafts.

Looks like someone pressed the front sprocket bearing on the wrong direction and broke some dogs.

The other transmission with the shorter rods and 18mm threads is likely a RDLC transmission.


Final question i've got, can the dog gears on the LC transmission be moved over to the RZ transmission? I've still got some damaged gears on there but this good LC transmission sitting here.

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