UK BRIAN......HELP

[Jonesy]

Geoff
I just fitted the 4 big red un's onto 581's barrels they do seem a tad big in section but with a bit of patience and your tongue sticking out to the left a little they will eventually work into the groove

[steptoe]

I,ve always thought that,s where they belonged, but after considerable time trying different ways of making them fit they always came up as being to large, and always stopped the base gasket seating properly,

came up with the theory maybe the kit also fitted a water cooled engine

[petejw1966]

the locating dowels don,t have o-rings on them, the one dowel that does is the internal crankcase near the oil pump, it forms part of the oil galleries

the red o-rings that you,ll get with the kit don,t fit anything either {I,ve never been able to make them fit anyway}

hey geoff, are u refering to the 4 large o rings in the kit?
there for the bottom of the barrel for the cylinders.

[Jonesy]

looks like I'm gunna have 2 "O" rings left over as well, Nuth'n obvious has come to mind where they'd go.
O rings are over rated anyway

[AussiXS11G]

yup - I still have red o-rings left over from the re-build....

[steptoe]

the locating dowels don,t have o-rings on them, the one dowel that does is the internal crankcase near the oil pump, it forms part of the oil galleries

the red o-rings that you,ll get with the kit don,t fit anything either {I,ve never been able to make them fit anyway}

[Brian]

It's not those, 93210-13361-00 are too big

"Approx Dimensions: Thickness 2.4mm / Outside Diameter 17.64mm / Inside Diameter 12.43mm"

[excess.11]

http://www.ebay.com.au/itm/NOS-YAMAHA-XJ750-XJ1100-XS1100-XS750-CRANKCASE-O-RING-/200316830761?pt=Motorcycles_Parts_Accessories&hash=item2ea3d04429

Here s a good start......send this guy an email asking the size of these
or
Click on the schematic to enlarge......item # 4

http://www.cmsnl.com/yamaha-xs1100e-1978_model8671/o-ring-2h7_9321013361/

[Jonesy]

11mm ID X 14mm OD
Do those locating dowels between the barrels and head have O rings?
 

[Jonesy]

Ok
thanks fellas
I will get the sizes this arvo.
Just thinking out loud I thought the oil pipe O rings may have been red viton hi temp  stuff

[Brian]

Yep, I'm with the other guys, PO reused the bag. 

The part number is for the valve shim tool.  Sizes of them o-rings would help.

[steptoe]

at a quick guess and look,, o-rings look very similiar to the oil cooler pipe flanges,, being 2 of them as well

[Eveready1100]

Can you tell us what size those O rings are? That'll help immensely.

[melbxs]

Convenient bag I think ....

http://www.boats.net/parts/detail/yamaha/Y-90890-01245-00.html

[Jonesy]

I've been to the part finder site and entered the 10 digit part number in the photo but it comes up a blank. I'm doing a top end rebuild on a bike that a PO bought most of the parts for but these 2 "O" rings I cant figure out where they are meant to go.
The bag was opened, so it may not be the proper contents? just a convenient pack for the PO to put these mystery  o rings in?