need help to identify my engine

[2stroketunah]

Hello i need some help to identify this engine so I can purchase the correct bearings for it.

The seller said it came off a 1994 yamaha Jog Cute.   I looked into that model and looks like a vertical motor not horizontal.

I read through some threads and seems the difference between the chinarelli and OEM JOG motor is the final driveshaft.

my issue is looks like the motor came with OEM JOG50 gears but the case that I received has a big hole (needs needle bearing) for the rear shaft.   from what I understand the JOG50 case does not require the needle bearing as the final shaft sits on the case itself.  

why does my motor have JOG50 gears but the case looks like different.

please help me identify this motor










these are pics of the final driveshaft hole.  what bearing setup do I use?  the final shaft is a JOG50 final shaft 16 splined.

[monsterunderyourbed]

It almost makes me think a vino 2t with the reed cage well.

[2stroketunah]

thanks for the input i appreciate it. only problem is the rear driveshaft area. looks like it needs a needle bearing also there is 2 slots for circlips.

all the Yamaha stuff doesn't require a needle bearing and only 1 circlip holding in the final drive bearing.

the Yamaha Jog50 cases have a 22mm opening for the rear driveshaft to fit snugly through. the case I have is a 30m opening where the Jogs are 22mm.

I read the post about the chinese cases but the opening on those are 33mm and the needle bearing ID is 25mm.

this is why I am stumped. I need a needle bearing with OD30mm andID22mm to fit the final driveshaft that I have.

[2stroketunah]

49ccscoot.proboards.com/thread/27992/90cc-shortcase-clone-rear-wheel

according to this post I have a Jog50 rear Driveshaft. Same dimensions and teeth count as JOG50. problem is my case does not match the Jog50 case opening to fit the Jog50 driveshaft.

also the case that requires the needle bearing has a 33mm opening where the needle bearing sits. My case only has a 30mm opening.

need help.

[aeroxbud]

Can you not just order a bearing and seals to match the diameters from a bearing supplier?
It you have a jog 50 drive shaft. Just order a bearing to match that inner diameter, with a 30mm OD.