Why is there 1 carb per cylinder when a car has one carb for multiple cylinders?

Absolutely not. Fess up, say "I goofed", move on. Well done.

 

Gilera 'bialbero' Nordwest/RC singles use the same Teikei twin choke
carb. Simplest tuning mod is therefore to junk it and replace with twin
CR33 Keihin smoothbores. 3 or 4 BHP instant improvement when properly
jetted. They even start better.

I read somewhere that despite an effective choke area of 70mm it still
works better than one 70mm choke carb (now that would be an awesome
sight) - twin port head I suppose.

Can make for a little inflexibility at low revs.In fact a little
judicious fiddling allows you to put the slides just a tad out of synch
so that one opens very slightly before the first but they are both wide
open at full throttle.A more free flowing exhaust also seems to help.
Standard Nordie (558) 45BHP ish. Nordie bored to 604, gas flowed head
higher CR, twin CR33s and a 'race' exhaust = 55 BHP (dyno). With
special cams you can get to 60+ but then the crankcases split between
the main bearing and the balance shaft (whatever gear you rev it too
hard for too long in).

Sorry if this eventually get duplicated but Demon's news server is
still down and the original post last night has not appeared yet.

 

Here's your answer:
http://motors.search.ebay.co.uk/xj6...trefZC12QQfromZR40QQfsooZ1QQfsopZ1QQsacatZ422

They've all been hacked around with.

 

The SRX250 has one-and-a-half carbs ...

-----sharks

 

Damn! Beaten to it by a crustacean!

[In case anyone is wondering: from memory, it's a four-valve single with
two separate inlet tracts, and a very odd carb which looks like a slide
carb and a CV carb next to each other and sharing various linkages and a
float bowl. One feeds each inlet valve. I have no idea why.]

-----sharks

 

They were ace bikes indeed - slightly gutless below 6k, but really,
really solid. The XJ750 Seca that followed was a huge disappointment -
some markets got an XJ750 which was identical to the 650 in all buit
capacity, and it was a shame we never saw it.

Not always. Like many Hondas they were susceptible to 'oil neglect', but
if you changed the lube religiously they were great.

Again, dodgy carburation was their downfall. They were jetted lean for
the Yanks and then Honda had to stick accelerator pumps on to make up
for the wet bottom end response. Mine was utterly stock, and ran
appallingly weak at the top end. I went up two sizes on the main jets
and it was perfect.

They steered superbly, did 120, were very comfy, well braked and easy on
fuel. I wouldn't mind another (sorted) one.

 

Nope. Dual throat carbs have sometimes been used in cars because they
give better mixing over a wider range of throttle and revs. The reason
they're not used on bikes is that the carbs are often jammed for space
and nobody cares much about mpg.

 

[/QUOTE]

Better mixing over a wider range of conditions, giving a smoother
torque curve and either better mpg or more torque depending on taste.

 

The tricky thing, now, will be to design an engine with
one-and-a-half cylinders to go with it....

Bob M.

 

The pistons made it over here which made for very easy big bore kits
for XS2 Yams. Liners were dirt cheap and the pistons were the same
price as standard items.

 

You could power it from a wind turbine in the exhaust flow. The real
problem would be getting the signal into the pipe.

 

I'm sure an old book I read many years ago had a switched open/muffled
exhaust in the hero's car. Might have been...

The Saint?
Bulldog Drummond?
James Bond?

 

power

 

Fuckwit.