Matt_C
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| posted on 27/8/13 at 11:12 AM |
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Can some body recommend me bike carbs?
Morning guys,
I have had enough of my dellorto carbs, I have spent far to much on them already and having just priced up getting the correct jets I have decided to
go down the bike carb route rather than taking the plunge on the jet expense.
Could somebody recommend a good package to go for as my experience with bike carbs is zero. After messing around with my carbs for so long I would now
like a working package I can simply bolt onto my 1.8 Zetec Silvertop engine.
I have read a few articles others have posted and got a quote for DanST engineering which does not seem too bad, have people had good experiences of
them or are there other companies people would recommend? They have priced me up a ZX6R kit including manifold, does this seem reasonable?
A few other little questions -
- Will my electric solid state fuel pump still be ok to use?
- Are there any other components I will need to make the change?
- How do chokes on bike carbs work? I have been told to use 32mm on my Dellorto's but then 37mm on the ZX6R carbs, does this sound right?
Cheers for the help guys,
Matt
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Charlie_Zetec
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| posted on 27/8/13 at 11:33 AM |
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Whilst I've not dealt with DanST on here, I have dealt with Bogg Brothers. I bought a set of ZX9R carbs (from a C model, with TPS for my
Megajolt) from the local bike breakers for £75, then sent them to Boggs asking them to clean and jet them so I can run my engine. They also made me a
pukka inlet manifold for it, which was £150 from memory. For best results, I'd stick with a bike fuel pump to match the carbs. I'm still
gonna need a rolling road session to set them up properly, but it's all bolt-and-go to get you started.
I suspect that if you were to sell the inlet manifold, carbs, fuel pump etc. on eBay or similar, you wouldn't be too far out of pocket for the
conversion....
Artificial intelligence is no match for natural stupidity!
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Matt_C
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| posted on 27/8/13 at 11:41 AM |
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Cheers Charlie,
Yeah the idea was to hopefully cover the cost of bike carbs from selling my dellorto carbs. I don't fancy spending the £220 I priced up for new
chokes and jets to set it up properly.
Matt
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coozer
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| posted on 27/8/13 at 11:54 AM |
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Go for ZX9R ones with a TPS, dead easy to set up, cost me £80 at Boggs to set mine up.
You need a bike pump to be safe as they only need about 1~2psi and cut out when the float chambers are full.
1972 V8 Jago
1980 Z750
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Andy S
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| posted on 27/8/13 at 12:12 PM |
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what size chokes do you have in the Dellorto's?
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Andy S
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| posted on 27/8/13 at 12:15 PM |
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what size chokes do you have in the Dellorto's?
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JeffHs
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| posted on 27/8/13 at 12:16 PM |
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Can't say I blame you, Matt. I'm still pratting about with my DCOEs and I'm getting completely fed up with them.
I think I'll go back to the original Weber downdraught and vacuum dizzy!
Jeff
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Paul Turner
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| posted on 27/8/13 at 12:58 PM |
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There is absolutely nothing wrong with set of Dellortos or Webers, when correctly set up they are 100% reliable, the only adjustment they need is
occasional balancing which is an easy DIY job with a suitable balancing device.
The problem with them is the number of experts out there who pretend they can tune them or the bar room experts who tell people what jets they need
when they simply don't have a clue.
Bike carbs and Weber/Dellortos both need setting up by people who have the expertise and jets to do it properly. A good tuner will not charge you for
new jests, I was only ever charged a small exchange fee in the 16 years I used Webers. Only ever needed to change jets when I made major engine
changes, once set up it would run for years.
But before you start find out if the carbs you have are a good matched pair or simply total carp like the usual E-Bay stuff is. They tend to originate
off ancient Fiats/Lancis/Alfa/Lotus's, some did not even have serviceable jets. I know more than a few people who have bought such rubbish and
then had to spend a fortune tryng to sort them.In some cases thaey were scrap.
Find out from locals who they use for tuning their Webers/Dellortos, ask on here giving people a clue where you live.
Bike carbs will do nothing for you if you don't get them set up expertly.
[Edited on 27/8/13 by Paul Turner]
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Charlie_Zetec
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| posted on 27/8/13 at 01:10 PM |
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quote:
Originally posted by Paul Turner
There is absolutely nothing wrong with set of Dellortos or Webers, when correctly set up they are 100% reliable, the only adjustment they need is
occasional balancing which is an easy DIY job with a suitable balancing device.
The problem with them is the number of experts out there who pretend they can tune them or the bar room experts who tell people what jets they need
when they simply don't have a clue.
Bike carbs and Weber/Dellortos both need setting up by people who have the expertise and jets to do it properly. A good tuner will not charge you for
new jests, I was only ever charged a small exchange fee in the 16 years I used Webers. Only ever needed to change jets when I made major engine
changes, once set up it would run for years.
But before you start find out if the carbs you have are a good matched pair or simply total carp like the usual E-Bay stuff is. They tend to originate
off ancient Fiats/Lancis/Alfa/Lotus's, some did not even have serviceable jets. I know more than a few people who have bought such rubbish and
then had to spend a fortune tryng to sort them.In some cases thaey were scrap.
Find out from locals who they use for tuning their Webers/Dellortos, ask on here giving people a clue where you live.
Bike carbs will do nothing for you if you don't get them set up expertly.
[Edited on 27/8/13 by Paul Turner]
I couldn't agree more! I've owned a couple of cars previously that I've run on Webers without a problem once they're setup
correctly, but when it came the kit I thought I'd try something a bit different. Plus the fact that Webers aren't cheap to purchase (even
less so from new) when compared to bike carbs, so there's a potential saving to be had. Unfortunately I think you've just had a bad
experience that's put you off - but hopefully a new route and direction will brighten things up! 
Artificial intelligence is no match for natural stupidity!
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mcerd1
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| posted on 27/8/13 at 01:13 PM |
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ZX6R / R6 carbs's would be fine for a mild tune on a 1.8
ZX9R / R1 carb's would be better if you want a bit more power (~40mm)
just make sure they have a TPS on them for your ignition system
(there are also some similar sized suzuki carb's, but I can never remember which ones they are....)
as above a pump from any similar bike with carb's is best (the ZX6 /ZX9 ones are nice and neat)
I also got my carb's & manifold from bog bros and would highly recommend them, but danST gets a good name and his DIY manifold kits are fair
bit cheaper
as for tuning your carb's - dave at bogg bros is your man and not just for bike carb's he's got a good name for the webbers etc. too
(although I'm guessing you'll be looking for someone a bit closer to home...)
[Edited on 27/8/2013 by mcerd1]
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Paul Turner
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| posted on 27/8/13 at 01:27 PM |
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Just spotted you are in Derby, I am near Mansfield. When I was using Webers (now on Jenveys) I used Nobles in Chesterfield for many years but John
Noble left and the kids who worked there did not have a clue. Clive Bussey at Autotronix who was trained and worked for John had set up on his own
just south of Sheffield and I used him. He knows what he is doing and his mother made a nice cuppa while you waited.
http://autotronixdevelopments.co.uk/
Also used Dennis Vessey near Grimsby when I had Weber Alpha ignition, Clive could not access the ECU. He was good but way more expensive.
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Matt_C
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| posted on 27/8/13 at 04:26 PM |
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Cheers for all the reply guys, I think I am going to now go down the bike carb route.
The price for my dellortos were off the internet and the dellorto/webber official uk site. I have a matched pair but an odd mix of jets contained
within.
30 choke
160 mains
210 airs
772.7 emulsions
55 idles
33 pumps
70 starter
The guy at dellorto recommended (for 1.8 Zetec)
32 choke
150 mains
200 airs
772.11 emulsions
60 idles
40 pumps
Sure it would run on my setup but would still have the expense of replacing everything further down the line, hopefully I can fund the change from the
sale of the carbs, manifold and fuel pump.
Cheers,
Matt
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cryoman1965
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| posted on 27/8/13 at 06:44 PM |
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Hi, will you be looking for a set of R1 carbs in good nick. I had them from an abandoned project from a few years ago. Have ups attached. I can send
pics if you are interested.
Cheers
Nige
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redturner
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| posted on 29/8/13 at 12:12 PM |
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I fully agree with all the above about Webers/ Dellorto carbs.If set up correctly they are brilliant Sadly they are also very expensive and even more
so some idiot has completely cocked it up whilst making 'adjustments' for a mate type thingy. I went the R1 route for the BlackTop in my 2
seater race car and they run brilliant, with the Megajolt and and using the map sensor. The carbs cost me £85 locally, I bought the manifold from
DanST engineering, a masterpiece in ally. I fitted 180 Weber main jets, (go straight in) and we plugged the air correctors and redrilled to about
.075mm to get the afr correct on the rollers. Peter Bowley at UKcarb-specialists is one of the UKs top Weber men and will give good advice before you
spend any money he is in Derby area.or if in Nottingham area I can recommend Tony at D & B carbs.
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