Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: BrendanO on October 31, 2009, 06:10:39 PM

Title: CB250RS carb info please
Post by: BrendanO on October 31, 2009, 06:10:39 PM

Here's one that I don't think is in the Haynes manual!

Just took off the float bowl of my (roughish) RS.

It has always leaked a bit, and has a small bolt stuck up the rubber overflow tube, otherwise petrol pours out.

Anyway, float height & valve sealing seems fine, but brass tube that allows petrol overflow if floats don't float is missing , presumed snapped off! Anyone know how tall this tube should be? I have spare CX carbs and hope it's same diameter of pipe, but would be nice to get length right!!! Height abovegasket face would be useful info please!!!

Ta!

Brendan

Title: Re: CB250RS carb info please
Post by: robG on October 31, 2009, 10:11:52 PM

Brendan,

Bit late now and have a few Bombardiers on board but will check mine tomorrow and let you know.

Rob .

Title: Re: CB250RS carb info please
Post by: robG on November 02, 2009, 12:17:48 AM

Brendan,

Apologies work interfered with essential bike stuff. Will try again tomorrow.

Rob .

Title: Re: CB250RS carb info please
Post by: guest27 on November 02, 2009, 09:29:36 AM

I would guess it is a couple of mm mre than float height.  But then the operative word is guess.

R

Title: Re: CB250RS carb info please
Post by: mini-thumper on November 02, 2009, 06:40:26 PM

Just measured my spare carb. and the overflow tube is 6mm above the level of the gasket.

Boyd

Title: Re: CB250RS carb info please
Post by: robG on November 02, 2009, 09:55:50 PM

Cheers Boyd.

Got sidetracked by XS 11 front brakes.

Rob .

Title: Re: CB250RS carb info please
Post by: BrendanO on November 02, 2009, 10:44:57 PM

Thank-you folks! Have tomorrow morning off work, so after I replace the CX choke cable...


...although I did have a text from a friend whose colleague is interested in a not-quite-running RS. Hmmmmmm!!

:)  Brendan