Fix trans

[BA80]

They probably have them at your local hardware store. They ain't nothing special.

[donebysunday]

They probably have them at your local hardware store. They ain't nothing special.

I'll check it out, Thanks !

[trbig]

Now I just have to wonder why that parts fiche showed 2 washers and the bolt on the end of the trans drive shaft ?

Because that's how it came from the factory?

[donebysunday]

Hey there Done,

I also have an 81SH that I've been into the tranny with, and I did NOT have that smaller washer!!! Just the washer/bolt combo and the narrow extra washer that fits around the groove/shoulder of the large washer head bolt. That bolt should have ~50 ft/lbs of torque!!!!

T.C.

So T.C. did not have 2 washers, the smaller washer under the gear shaft stepped bolt but that's not how it's supposed to be as shown in the fiche ?
Then I'm still missing a washer that should be under this stepped bolt !
After looking again at the fiche doesn't that larger washer look even bigger than the bolt head, where's that coming from/supposed to be/do ? ? ?
We already determined that the smaller washer in my pic that fell to the floor goes behind the outer C clip on the shift pawl shaft.
What am I missing ?

Thank You for all your help !!!!! Done };~) Trying to be the kind of person my dog thinks I am, smarter than I am !

[BA80]

That larger washer centers up on the inner race of the bearing that the shaft comes through. It only rides on the outer edge of the shoulder of the bolt.

[donebysunday]

That larger washer centers up on the inner race of the bearing that the shaft comes through. It only rides on the outer edge of the shoulder of the bolt.

OK let me ask this from looking at the fiche please ?
In the fiche it shows #32, in my photo this would be the larger washer, yes ? The smaller washer in my pic goes on the oil pump drive between it and the C clip.
Going back to the fiche where did I loose #29, it's not on the bearing/in the case or on the garage floor. It also appears to be bigger than the bolt head ?

Thank You ! I'm going nuts, well more nuts, maybe a beer or 20 ?

[BA80]

Man, you got me there. According to the fiche it was only used in LGs all the 81s and XJs.

Once again, maybe trbig knows.

[3Phase]

Done,

The #29 washer is the same ID and OD as the #31 bearing outer race. If it's in there it's pressed in the hole along with the bearing.

....

Greg,

It's not just the '81s that use the skinny bearing and washer. It's not in the parts fiche but my '80G has the skinny bearing and the washer along with the extra washer to put under the 'special' bolt.


.

[BA80]

I was just going by what the Powersports parts fiche says.

This is the list of fitment for that particular part:

This Yamaha 90201-252A4-00 WASHER,PLATE is used on these models and components:




1989 BREEZE - YFA1W TRANSMISSION


1991 BREEZE - YFA1B TRANSMISSION


1992 BREEZE - YFA1D TRANSMISSION


1993 BREEZE - YFA1E TRANSMISSION


1994 BREEZE - YFA1F TRANSMISSION


1995 BREEZE - YFA1G TRANSMISSION


1996 BREEZE - YFA1H TRANSMISSION


1997 BREEZE - YFA1J TRANSMISSION


1998 BREEZE - YFA1K TRANSMISSION


1999 BREEZE - YFA1L TRANSMISSION


2000 BREEZE - YFA1M TRANSMISSION


2000 BREEZE - YFA1MC TRANSMISSION


2001 BREEZE - YFA1N TRANSMISSION


2001 BREEZE - YFA1NC TRANSMISSION


2002 BREEZE - YFA1P TRANSMISSION


2002 BREEZE - YFA1PC TRANSMISSION


2003 BREEZE - YFA1R TRANSMISSION


2003 BREEZE - YFA1RC TRANSMISSION


2004 BREEZE - YFA1S TRANSMISSION


2004 BREEZE - YFA1SC TRANSMISSION


2004 GRIZZLY 125 - YFM125S TRANSMISSION


2005 GRIZZLY 125 - YFM125GT TRANSMISSION


2005 GRIZZLY 125 HUNTER - YFM125GHT TRANSMISSION


2006 GRIZZLY 125 - YFM125GV TRANSMISSION


2006 GRIZZLY 125 HUNTER - YFM125GHV TRANSMISSION


2007 GRIZZLY 125 - YFM125GW TRANSMISSION


2007 GRIZZLY 125 HUNTER - YFM125GHW TRANSMISSION


2008 GRIZZLY 125 - YFM125GX TRANSMISSION


2008 GRIZZLY 125 HUNTER (Yamaha Black (Hunting)) - YFM125GHX TRANSMISSION


2008 YFM125GX-B TRANSMISSION


2009 GRIZZLY 125 - YFM125GYB TRANSMISSION


2009 GRIZZLY 125 - YFM125GYGR TRANSMISSION


2010 GRIZZLY 125 - YFM125GZGR TRANSMISSION


2011 GRIZZLY 125 - YFM125GAGR TRANSMISSION


2011 GRIZZLY 125 - YFM125GAL TRANSMISSION


1980 XS1100LG TRANSMISSION


1981 SR500H TRANSMISSION


1981 TT500H TRANSMISSION


1981 XS1100H TRANSMISSION


1981 XS1100LH TRANSMISSION


1981 XS1100SH TRANSMISSION


1981 XT500H TRANSMISSION


1982 XJ1100J TRANSMISSION


1988 ENTICER LTR (LONG TRACK+REVERSE) - ET340TRM TRACK DRIVE 2


1990 ENTICER LTR - ET400TRP TRACK DRIVE 2

[3Phase]

I was just going by what the Powersports parts fiche says.

Well, it just shows to go you that you can't always believe everything that you read in the fiche. It confused me too when I was working on the transmission and the fine factory service manual and the online parts fiche didn't agree with what was in my hands at the time, trust me.


.

[donebysunday]

The end

Took my most powerful flashlight and my strongest carb cleaning glasses/specs and went to have a look see.
There is a hardened steel washer in the case against the bearing.
It's solid and keeps the outer bearing race face from touching the case, could only be removed if the bearing was taken out from the inside.
At the bottom it is level with the case, with a dental pick I was able to catch just a little bit of the edge of it at the top.
I think this is the big washer #29 that shows up in the fiche.
Must be there in case the bearing would fail ? and start spinning on it's outer race instead of on the bearings inside.
If this happened I would think ALL HELL would be released in the engine case and if it did not stop the engine dead and maybe crack the case would enlarge the bearing seat in the aluminum case and ruin it anyway ?
Maybe it would not take teeth off the gears by keeping them in alignment.
At least the bearing going bad would not drill through the case and into the clutch, would it matter at that point ?
Also locking up the rear wheel or breaking some part of the drive line.
Why not on the earlier models ? it would not make a difference anyway the case would still be ruined ?

Thanks For Putting Up With Me All of You Great XSives !!!!! Done };~)

[trbig]

I'll check a couple of motors when I get home, but I think there's no washer normally there. All I remember is that c clip holding the bearing in the case. Not that it matters really. If the washer didn't belong there, the c clip wouldn't fit into the groove, so apparently it goes there.

[3Phase]

The washer is there because Yamaha changed the bearing (look at the bearing part numbers) and the old bearing was thicker than the new bearing: double-row ball vs single-row ball.

It was probably a lot easier to add shims for the new skinny bearing in the engine case and the 'special' flanged bolt than it was to redesign the case and tool up and mark a new flanged bolt to fit the new skinny bearing.

As for why some 1980 and up transmissions use the skinny bearing and shims and some don't you'd have to ask Yamaha.

While you're there, find out how they made a carbureted outboard motor for almost a decade that used pilot mixture screws but did not list them in the parts fiche either. If anyone asks where to find one of those unlisted mixture screws for an earlier carburetor....


.

[BA80]

I thought of that Scott but in the parts fiche it lists the bearing as #93304 20504 00 for 78 - 84.

[TopCatGr58]

Hey Greg,

There was a tech bulletin that described what Scott said, that they went to a narrower bearing and used that #29 washer as a spacer in the engine case. Was done for I think the late 80's models late in production and the 81's and such. This was also why they went to the large shouldered bolt and extra external washer vs. the single washer head bolt of the earlier models.

T.C.