Topic: correct rebuild kit?

[norcalhondaman]

I have a 1974 cb750, my left two carbs are leaking gas where the fuel rail goes into the carbs. I am going to go ahead and rebuild the bottom of all of them with new gaskets and needle valves blah blah. Im planning on buying this kit on ebay, and just wanted to make sure that the little o-ring is the one that goes to the fuel rail. Thanks!

http://www.ebay.com/itm/FOUR-NEW-Honda-CB750-CB-750-K1-K6-Carb-Carburetor-Rebuild-Kits-Kit-/110863981661?pt=Motorcycles_Parts_Accessories&vxp=mtr&hash=item19d0021c5d#ht_2850wt_976

[nayto550]

The rebuild kits that I've bought typically don't come with the distribution rail o-rings.  I bought my o-rings from an auto parts store (I think I spent about $1.50 for all 8 ), but you can probably still get them from Honda.

[norcalhondaman]

So is the o-ring in this kit not the fuel rail o-ring?

[HondaMan]

Generally, no. Most of them are 8x2mm (7.9x1.9 in the parts fiche). I get them at local seal stores.

[faux fiddy]

Generally, no. Most of them are 8x2mm (7.9x1.9 in the parts fiche). I get them at local seal stores.

Any clues as to the sizes of the 350f o-rings?  The ones in my kits seem a bit thick and cookie cutter a little piece out or kiltered jet. 

I can't remember if I tried light grease.

[Eydugstr]

So is the o-ring in this kit not the fuel rail o-ring?

If it's a really small o-ring, should be the O-ring for the carb bowl drain screw.

[bollingball]

Or it could be the air screw o-ring any way I have never liked eBay after market kits poor quality control. The needles are the worst. I will go with SCI for o-rings and push in slow jets and Honda for all other hard parts. Just not worth the aggravation of poor fitting parts. jmo
Ken

[chewbacca5000]

Generally, no. Most of them are 8x2mm (7.9x1.9 in the parts fiche). I get them at local seal stores.

If you can't find a seal store in your area just Google 8x2mm oring and you will find a bunch.  Make sure it is gas resistant.  I think Vitron is what you are after.  If you want add Honda to your search and you should be able to find the exact OEM part.  Part No make the search part much easier.  Many vendors have microfiche on their site to help get the part number if you are that fussy like me.  That is what I did when I got my counter shaft oiler o-rings.