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bike carbs- what are the best carbs to go for for a 1200cc??


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Posted

contemplating either bike carbs or 40s if i pick a set up cheaply at the swap meet, BUT i am thinking of doing bike carbs on my pre xflow, what carbs are the best to go for, for economy?? and what exactly do i need on top of the carbs themselves, as i can make the manifold myself.

last question to sum up how much will it cost all in all ready to bolt on, as i worked out 40's will cost about 250 all refurbed etc.. what about the bike cabrs??

 

any help much apprieciated :thumbsup::beer:

Posted

Yeah bogg bros are the chaps to speak to. :thumbsup:

Being a 1200cc, you'll need carbs with quite small chokes for em to work properly. You deffo shouldn't use big R1 carbs etc as you wont get the correct air speed flowing. Having said that I'll bet the jetting wouldn't be too far out :lol:

Posted

two major brands of bike carb are mikuni and kehein... mikuni are the full on beastly ones, kehein slightly more reserved for economy... but as has been said, you wouldn't want anything bigger than 600cc carbs! and has been said, talk to bogg bross, get them to advise on some carbs, then get the carbs on ebay!

 

you can send the complete carbs to the bros and they will strip, rebuild and base jet as well as bolt onto a bespoke manifold, all for a very reasonable price :wink:

Posted

I could be way off here but even 600cc carbs may be a tad too big possibly a set of cvs off the likes of a cbr,zxr, gsxr 400cc maybe be more suitable or maybe 250cc ones.

Posted
I could be way off here but even 600cc carbs may be a tad too big possibly a set of cvs off the likes of a cbr,zxr, gsxr 400cc maybe be more suitable or maybe 250cc ones.

 

think your more like bang on mate!

Posted
sounds good, but i think i will stay with webers for now, 400 pounds seems a lot for me for now, :thumbsup:

 

that depends mate, i think £400 is for R1 carbs? if your using less desirable ones surely they will be cheaper? also, if you get a set of good condition ones theres no need to get them refurbed?

 

also what happened about that other carb you were getting ??

Posted
sounds good, but i think i will stay with webers for now, 400 pounds seems a lot for me for now, :thumbsup:

 

that depends mate, i think £400 is for R1 carbs? if your using less desirable ones surely they will be cheaper? also, if you get a set of good condition ones theres no need to get them refurbed?

 

also what happened about that other carb you were getting ??

 

too expensive :oops:

 

and i might just go for webers now, toby kent may cry if i go for bike carbs :lol:

Posted
sounds good, but i think i will stay with webers for now, 400 pounds seems a lot for me for now, :thumbsup:

 

that depends mate, i think £400 is for R1 carbs? if your using less desirable ones surely they will be cheaper? also, if you get a set of good condition ones theres no need to get them refurbed?

 

also what happened about that other carb you were getting ??

 

Carbs off a 250-400cc bike wont cost that much i think its nuts that R1 carbs are that price, trawl ebay and check bike breakers and dont say there for a car as you will never get em, bikers can be funny like that :wink:

Posted
sounds good, but i think i will stay with webers for now, 400 pounds seems a lot for me for now, :thumbsup:

 

that depends mate, i think £400 is for R1 carbs? if your using less desirable ones surely they will be cheaper? also, if you get a set of good condition ones theres no need to get them refurbed?

 

also what happened about that other carb you were getting ??

 

Carbs off a 250-400cc bike wont cost that much i think its nuts that R1 carbs are that price, trawl ebay and check bike breakers and dont say there for a car as you will never get em, bikers can be funny like that :wink:

 

yeah i know, well i will see what my funds wil allow once body and paint is sorted, still bike carbs are a strong contender :thumbsup:

Posted

£400 is for carbs & a custom manifold all jetted correctly.... bargain if you ask me!

 

Twin webers are gonna cost you as well, I'd go fro the twin choke weber & inlet from a 1500 GT :thumbsup:

 

This is my 1200 with just a standard carb & K&N. I'd like to say it has a nice meaty system but it actually had no exhaust from the mani back when I filmed this :roll:

 

th_MOV05039.jpg

 

Love the sound of a pre crosser :P

Posted
£400 is for carbs & a custom manifold all jetted correctly.... bargain if you ask me!

 

Twin webers are gonna cost you as well, I'd go fro the twin choke weber & inlet from a 1500 GT :thumbsup:

 

but i love the noise from webers :sad: probs will have to go a 15gt carb and inlet, but induction choices will be more 'exotic' for me , shall we say :mrgreen:

Posted

Dazza, set of R1 carbs £50-80, a steel inlet flange off ebay £15, some s/steel tube, bout a meter £15 bend it to 45 degs and sorted

 

edit: just thought you may need either a bike fuel pump or a fuel pressure reg as bike carbs run on a lower pressure

Posted
Id like to give a DIY install a go, but would like to know what exactly is needed. Standard-ish 2 litre Pinto.

 

talk to capri-nerd... his bike carb set up on his cappa is semi-DIY :wink:

 

had to edit.... stooby mate, that engine sounds King wicked mate! :wink:

Posted
Dazza, set of R1 carbs £50-80, a steel inlet flange off ebay £15, some s/steel tube, bout a meter £15 bend it to 45 degs and sorted

 

edit: just thought you may need either a bike fuel pump or a fuel pressure reg as bike carbs run on a lower pressure

 

Nice one copey, that sounds relatively easy!

 

Ive seen the bank of carbs split and spaced to even things out a bit, is this aggro?

Posted
Dazza, set of R1 carbs £50-80, a steel inlet flange off ebay £15, some s/steel tube, bout a meter £15 bend it to 45 degs and sorted

 

edit: just thought you may need either a bike fuel pump or a fuel pressure reg as bike carbs run on a lower pressure

 

Nice one copey, that sounds relatively easy!

 

Ive seen the bank of carbs split and spaced to even things out a bit, is this aggro?

 

you would be best leavin them together, easier to sort out the throttle linkage that way

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