Z650 fuel linkage O rings

[mattc]

I am looking to put new O rings on the three metal fuel linkage pipes that fit between the carbs on a Z650B1, one T piece and 2 straight pieces.
(92005-1010 & 92005-1009)

They seem to be the same sizes so need 12 O rings in total. Anyone know what sizes O rings I need or where I can get them from? You can buy the complete parts from Z-Power and CMS but they are pretty expensive.

Thanks for any help
Matt

[KeithZ1R]

7.5 id x 1.8 cross section give or take have a troll around 'O' ring suppliers you should find something close to that, the ports are around 11mm id from memory. If I am incorrect somebody will be along to let you know

[z1bman]

if you still have the original joints fitted the part that looks like an o ring is part of the fitting & cannot be removed. you will have to purchase the stainless steel kit that you can buy from z power & has separate o rings fitted

[warren3200gt]

650 B1's do have removable o rings from new. Later models had o rings moulded into the t and straight piece.
Halfrauds do a viton multi o ring set which has the correct size in it. Cant recall how many in the set so you may need two.
Cheap enough and you get some spares and a stock of other sizes to boot.

[z1bman]

https://www.z-power.co.uk/z650/carb-link-pipe-z1000650

https://www.z-power.co.uk/carb-t-piece-z1000z650

[mattc]

7.5 id x 1.8 cross section give or take have a troll around 'O' ring suppliers you should find something close to that, the ports are around 11mm id from memory. If I am incorrect somebody will be along to let you know

Thanks for the detail Keith...looks about right. Matt

[mattc]

if you still have the original joints fitted the part that looks like an o ring is part of the fitting & cannot be removed. you will have to purchase the stainless steel kit that you can buy from z power & has separate o rings fitted

No these O rings definitely come off, and the metal parts do look like they are original 43 years old...the sizes that Keith suggested look about right. Thanks, Matt

[mattc]

650 B1's do have removable o rings from new. Later models had o rings moulded into the t and straight piece.
Halfrauds do a viton multi o ring set which has the correct size in it. Cant recall how many in the set so you may need two.
Cheap enough and you get some spares and a stock of other sizes to boot.

Good suggestion Warren, thanks Matt

[KeithZ1R]

7.5 id x 1.8 cross section give or take have a troll around 'O' ring suppliers you should find something close to that, the ports are around 11mm id from memory. If I am incorrect somebody will be along to let you know

Thanks for the detail Keith...looks about right. Matt

Just had another measure whilst not under the influence they are 8mm id and 1.8 cross section

[mattc]

7.5 id x 1.8 cross section give or take have a troll around 'O' ring suppliers you should find something close to that, the ports are around 11mm id from memory. If I am incorrect somebody will be along to let you know

Thanks for the detail Keith...looks about right. Matt

Just had another measure whilst not under the influence they are 8mm id and 1.8 cross section

Thanks, I have just checked the od of the grooves in the metal linkage pieces and they are 8.2mm.....so an O ring id of 8mm or slightly less should be good. Cheers

[warren3200gt]

8 X 2 is the size you want Matt. Nice tight squish fit. They are in the Halfrauds pack.

[mattc]

8 X 2 is the size you want Matt. Nice tight squish fit. They are in the Halfrauds pack.

Thanks Warren. Squishy fit it will probaby be.... Matt

[z1bman]

kawasaki never made them with a seperate o ring fitted it was moulded to have the same effect as an o ring someone has probably fitted suzuki gs750b fittings that have seperate o rings & are available to buy seperate & are the same size as the kawasaki

[warren3200gt]

Yes they did z1bman. Both my 650's have them fitted. One of which I have owned from new. Both are 650 b1's as is Matt's.

[z1bman]

i worked at cradley for over thirty years as a mechanic & have stripped many of these carbs & have never seen them with removable o rings if they had removable o rings they would be shown in the parts diagrams or parts microfiche. contact dave marsden at z power if you want more confirmation

gs 750b