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X-Flow/ Bike carbs
Ham - 20/11/06 at 06:37 AM

Any ideas on what bike carbs / sizes to look out for?
Any idea of performance increase/problems?

Cheers


Humbug - 20/11/06 at 07:22 AM

Try U2U'ing Surrey Dave and/or GeoffT - I think they have Xflow + bike carbs (though Geoff now has a K-Series)


alanf_uk2002 - 20/11/06 at 07:24 AM

I've got a set of R1 bike carbs ready to go if you're interested. Just needs an inlet manifold. PM me for details.

Alan


soggy 3 - 20/11/06 at 09:50 AM

surrey dave has a cvh
best idea would be to do a search.
[Edited on 20/11/06 by soggy 3]

[Edited on 20/11/06 by soggy 3]


Surrey Dave - 20/11/06 at 10:16 AM

I have 38mm carbs on my 1800cvh , robocog has 34mm carbs on his 2 litre, many people fit R1 41mm? carbs.

I personally have a feeling that most bike carbs are a little large.

If you fitted webers you would not have 38 - 41 mm sized chokes.

But because of the constant velocity design you can get away with the large carbs.

If I where fitting bike carbs to a xflow I would be thinking that 34mm would be large enough.,they come in a smaller neater package and usually have a tps fitted.

Most of the driving on large bike carbs is done on the pilot and needle settings it takes a lot to get fully up onto the main jet.

Thats why I'm thinking smaller could be better , you would use the main jet sooner and stronger.



Thats my opinion , others may differ


Dave-M - 20/11/06 at 12:40 PM

[Edited on 20/11/06 by Dave-M]


Ham - 20/11/06 at 01:21 PM

Thanks Surrey-Dave, am I correct in saying that I do not nessesarilly need carbs off a 1000cc bike?
When fitting bike carbs are there any other mods required (ignition etc)? I am currently running an electronic distrubutor.
Lastly what is the performance like?

Cheers


Surrey Dave - 20/11/06 at 01:55 PM

doesn't matter what bike, you will probably have to increase the main jets in amy.

you may have to raise the needle to richen the mid as well.

I think most get away with the standard pilot jets


Some people enlarge the air bleed holes in the slide to make it rise faster , Dynojet recommend this with some of thier kits.


Performance is good , you get the smoothness and economy of small carb and the top end power of large carbs

Very very flexible through tht whole rev range,

[Edited on 20/11/06 by Surrey Dave]


David Jenkins - 20/11/06 at 03:55 PM

Could I run a set of FZS600 carbs with the existing x-flow fuel pump? Any potential problems?

And is there a particular model/year I should be looking for?

(apologies for thread hijack - but it is slightly relevant! )

David

[Edited on 20/11/06 by David Jenkins]


Surrey Dave - 20/11/06 at 04:24 PM

Without a regulator the carbs would probably flood , they only need 1- 1.5 psi.

There's another thread on today discussing this.


thunderace - 20/11/06 at 07:32 PM

just get twin 40s Rescued attachment DSCFweb1.JPG
Rescued attachment DSCFweb1.JPG


givemethebighammer - 20/11/06 at 09:59 PM

that's a BIG picture.........


Deckman001 - 20/11/06 at 10:17 PM

I'm using R6 carbs(I Think) they are 34mm chokes anyway so should be perfectly choked for a mild x/flow, am awaiting their return from BB's I'll update on there use when I try them
Oh, am using an R6 fuel pump as well, which is all ready fitted and runs the dgav with no problems so far

Jason