Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: hyperbimduke on January 23, 2022, 11:29:08 AM

Title: Xbr carb o ring question
Post by: hyperbimduke on January 23, 2022, 11:29:08 AM
Hi all.
Bought a refurb kit and there are 2 o rings, one small for slow running mixture screw but where does larger 7mm one go?
Title: Re: Xbr carb o ring question
Post by: mthee on January 26, 2022, 01:41:25 PM
Try it on the drain plug 👍
Title: Re: Xbr carb o ring question
Post by: hyperbimduke on January 28, 2022, 04:43:56 PM
Thanks for that, took out drain plug couldnt fid where an o ring would go, do you know if later XBR's do have an o ring on drain plug?
Title: Re: Xbr carb o ring question
Post by: mthee on January 28, 2022, 06:12:44 PM
Sorry, my XBR doesn't have the original carb. I had a look in the service manual and on cmsnl, but there doesn't appear to be any clear indication on the diagrams. Hopefully, someone will know, instead of guessing 👍

Or, Dave Silver do a refurb kit, so a phonecall to them might get you the result.

https://www.davidsilverspares.co.uk/XBR500/part_238011/
Title: Re: Xbr carb o ring question
Post by: hyperbimduke on January 29, 2022, 11:12:57 AM
Hey, had a closer look at the drain screw and there is an o ring groove and it fits. Thank you, mine didn't have one on but didn't leak either, happy now as nothing worse than having bits left over...
Title: Re: Xbr carb o ring question
Post by: mthee on January 29, 2022, 11:56:27 AM
Thanks for posting the result. All we need now is the master of ceremonies, Moto63, to declare an official happy ending...Michael?...😁
Title: Re: Xbr carb o ring question
Post by: Moto63 on January 29, 2022, 01:28:15 PM
Yes... ok. You have my blessing. This is defo a happy ending. Let’s face WHO doesn’t love a happy ending 😉🤘