YZ 125X gearbox bearing troubles.

[steveo247]

Hey everyone. I need some help with getting the correct bearing for my yz 125 x engine.

Its #8 in this diagram. The part number is listed (in my 125 x parts list, aswell as cmnsl) as 93311-31522.


The bearing that has been sent isint the right one. The package had been opened and re sealed so i took it back and thought that maybe when it got opened before they out the wrong one back in the packet. But no, they ordered another and it came in a sealed bag same size wrong bearing.

The one on the right in this photo is the old one pulled out of the motor, and the one on the left is the one that has turned up twice as part number 93311-31522.


I took the old one to my local bearing shop, and tried to get one. they had one same outside diameter, same inside diameter but its 2mm narrower? So i dont really want to use this one.

In this photo the one on the right is the old one out of the motor, the number on it is 15NQ2412A.
The one at the top of picture is the one from local bearing shop, right size but 2mm narrower overall.

the one on the left is the 93311-31522 which you can see isint even close.


Anyone have any suggestions?
Ill try some more bearing places (only have one local) but i thought maybe someone could point me in the right direction so we can get this motor finally back together!

[steveo247]

one like this please 

[Freakshow]

i think its the same as the mx125c as that has a funny size bearing too in thats case shaft we had to sorce one as the normal 125A is differant, i thik its a 5 vs 6 speed box thingy.  they are on ebay and also in old stock.  but the bearing shops on had the 1216 not the 1215. the A model is 93315-31502 - let me check an old one of those at home maybe you actually need that one.

i think the thickness gives you the space or lash in the box so you have to use the right size. 

i think the Ag200 is the same ? or was that the one i used in the YZA125.  anyhow you need to ebay it ! there out there.  but the bearing shops i checked where the same nothing, in the end i got some out the states for fork all.

Part # = 93311-31522-00
Part Description = BEARING
Model Count = 7
MX125C 1976 125 MX125 Off-Road
TZ125G 1980 125 TZ125 Road Racer
YZ100C 1976 100 YZ100 Competition Motocross
YZ100D 1977 100 YZ100 Competition Motocross
YZ125C 1976 125 YZ125 Competition Motocross
YZ125X 1976 125 YZ125X Competition Motocross
YZ175C 1976 175 YZ175 Competition Motocross

[Freakshow]

you might need to double check whats stamped into them as they still look like the one you have.  but if the numbers stamped into them are the same go for it.

Dumb question are you sure the one thats came out of it  was the correct one ?  maybe they couldnt find one and used the short one of the shelf ??

http://cgi.ebay.com.au/NOS-YAMAHA-MX125-TZ125-YZ100-YZ125-YZ175-TRANS-BEARING-/200580233299?pt=Motorcycles_Parts_Accessories&hash=item2eb3837853

[GMC]

Are you sure you ordered #8 and not #26 or #32?


FWIW
Part # = 93311-31522-00
Part Description = BEARING
Model Count = 7
MX125C 1976 125 MX125 Off-Road
TZ125G 1980 125 TZ125 Road Racer
YZ100C 1976 100 YZ100 Competition Motocross
YZ100D 1977 100 YZ100 Competition Motocross
YZ125C 1976 125 YZ125 Competition Motocross
YZ125X 1976 125 YZ125X Competition Motocross
YZ175C 1976 175 YZ175 Competition Motocross

[Freakshow]

geoff stop typing and post my pipe !!!!!! 

[steveo247]

you might need to double check whats stamped into them as they still look like the one you have.  but if the numbers stamped into them are the same go for it.

Dumb question are you sure the one thats came out of it  was the correct one ?  maybe they couldnt find one and used the short one of the shelf ??

http://cgi.ebay.com.au/NOS-YAMAHA-MX125-TZ125-YZ100-YZ125-YZ175-TRANS-BEARING-/200580233299?pt=Motorcycles_Parts_Accessories&hash=item2eb3837853

freakshow your a legend, i search ebay but i might be a little bit retarded becuase they never show up in my searches. i think i need to search more / different keywords. Thanks very much for that!

Are you sure you ordered #8 and not #26 or #32?
 

i thought that for a second too but i ordered all bearings and this one was the only one that showed up wrong size, #26 and #32 went in well.

[Freakshow]

well if that one dont fit then you know you have weither the wrong shaft - gearbox in there or the old one was a 'Made to fit one" and wasnt right anyway.  the 6 speed uses a differant bearing than the 5's thats all i know.    good luck HTH