Originally posted by chris
also have you got the vent pipes open [/quote
What are the vent pipes bud? Are thEse the two small pipes sticking out above the carbs. There's also one larger one or are these vacum pipes. Sorry for the silly questions quite inexperienced with these but want to give them a go.
chris - 25/8/16 at 02:48 PM
if new how to post pictures it would be a lot easier to explain but the vent pipes are usually at the top of the carbs and should be left open to vent to atmosphere if you have fuel coming out of these I would say that your floats are stuck or not level
ProjectSi - 25/8/16 at 03:00 PM
quote:
Originally posted by chris
if new how to post pictures it would be a lot easier to explain but the vent pipes are usually at the top of the carbs and should be left open to vent to atmosphere if you have fuel coming out of these I would say that your floats are stuck or not level
Fuel doesn't come out of the pipes it comes out the carbs themselves by the looks of things. However I did have two small black pipes blanked off as I assumed these were for vacuums so that maybe the issue :/
mcerd1 - 25/8/16 at 03:10 PM
quote:
Originally posted by ProjectSi
quote:
Originally posted by mcerd1
quote:
Originally posted by ProjectSi
The carbs seem to be weeping a bit of fuel when I try start/turn over the car. The carbs came off a zetec and were allegedly running spot on. Any ideas what could be causing this?
what fuel pump are you using ?
Said in the first post Mate using the cbr600 pump
but is that from a carbureted or fuel injected bike - it makes a big difference !
you said at the top that the carb's are from a CBR600RR, but as far as I know all the RR versions were fuel injected - I believe the F4 was the last one with carbs (although I'm not an expert on these bikes)
[Edited on 25/8/2016 by mcerd1]
ProjectSi - 25/8/16 at 03:22 PM
quote:
Originally posted by mcerd1
quote:
Originally posted by ProjectSi
quote:
Originally posted by mcerd1
quote:
Originally posted by ProjectSi
The carbs seem to be weeping a bit of fuel when I try start/turn over the car. The carbs came off a zetec and were allegedly running spot on. Any ideas what could be causing this?
what fuel pump are you using ?
Said in the first post Mate using the cbr600 pump
but is that from a carbureted or fuel injected bike - it makes a big difference !
you said at the top that the carb's are from a CBR600RR, but as far as I know all the RR versions were fuel injected - I believe the F4 was the last one with carbs (although I'm not an expert on these bikes)
[Edited on 25/8/2016 by mcerd1]
It is allegedly from a carburettor powered bike. Slight mistake the pump I've bought is for the cbr600f, it says it should pump around 1.5-2psi which is about right for carbs isn't it? Is there a way to upload pictures on here?
chris - 25/8/16 at 03:23 PM
don't think there are any vac pipes on bike carbs just fuel pipes vent and de ice circuit
mcerd1 - 25/8/16 at 03:46 PM
you should be able to upload pics here: http://www.locostbuilders.co.uk/photos.php
then link to them by copying and pasting this bit in you posts:
quote:
Originally posted by ProjectSi
It is allegedly from a carburettor powered bike. Slight mistake the pump I've bought is for the cbr600f, it says it should pump around 1.5-2psi which is about right for carbs isn't it?
only asking as its been a common problem - I believe the carbd bike pumps self regulate to about that kind of pressure (which saves the need for any extra regulator)
there are a few old posts about connecting up bike carbs - this is the best one I can find for now (ZX9R so slightly different type of keihin carb to what I think you'll have, but it should give you the right idea)
http://www.locostbuilders.co.uk/viewthread.php?tid=100648
[Edited on 25/8/2016 by mcerd1]
Charlie_Zetec - 25/8/16 at 03:48 PM
I thought the F4 was the first of the fuel injected bikes? I used to have an CBR600 F3 (S-reg), which was one of the last carb'd models. If the pump is from a CBR 600f, just check the year of the bike it came off. Pretty sure that anything 2001 or newer will be injection, and not what you want/need.
mcerd1 - 25/8/16 at 03:49 PM
quote:google says its the F4i rather than the F4 (99 to 2000)
Originally posted by Charlie_Zetec
I thought the F4 was the first of the fuel injected bikes?
I guess the name makes sense at least
[Edited on 25/8/2016 by mcerd1]
chris - 25/8/16 at 03:56 PM
don't want to hijack this thread but all my pictures are in photobucket and I just cant upload them onto this site
ProjectSi - 25/8/16 at 05:03 PM
So am I correct in saying bike carbs lack vacumm lines all together then? If so then this could be my issue, as there was one large pipe and two smaller ones on the top of the carbs which I assumed were vacuum lines. One I've hooked up to servo and the other 2 I've blanked so no wonder the fuel isn't getting through if that's the case
chris - 25/8/16 at 05:32 PM
To connect your servo you will need to have a take off point on each of the inlet branch of manifold with those four take offs going to a plenum and then onto servo some people only use one take off but I like belt and braces
ProjectSi - 25/8/16 at 05:58 PM
That's fine I'll work out how to get servo working just want sure what those pipes on the carbs were. I thought they were vacuum lines but I guess they are vents?
David Jenkins - 25/8/16 at 06:17 PM
I don't know if this helps, but here's the link to my web page regarding the CBR600 carbs I fitted to my crossflow:
Bike carbs
mcerd1 - 25/8/16 at 06:41 PM
quote:
Originally posted by ProjectSi
That's fine I'll work out how to get servo working just want sure what those pipes on the carbs were. I thought they were vacuum lines but I guess they are vents?
that's probably the case, but some pics would hopefully confirm it
if your struggling to upload them then you can email them to me and i'll put them on if you like
chris - 25/8/16 at 07:40 PM
if I post up a link it allows access to everything in my photobucket
[Edited on 25/8/16 by chris]
[Edited on 25/8/16 by chris]
chris - 25/8/16 at 07:46 PM
hang on how did I do that ?????????
chris - 25/8/16 at 07:49 PM
any way you can just see the vent pipes sticking out of the top between 1&2 & 3&4 these are just left open to atmosphere
chris - 25/8/16 at 08:01 PM
this is a plenum I made up to do vac advance on dizzy same thing needed to work brake servo but the nipple that's left on number four inlet could
be used for servo
[Edited on 25/8/16 by chris]
[Edited on 25/8/16 by chris]
chris - 25/8/16 at 08:16 PM
eh getting the hang of posting pictures now eh!!!!!!!!!
ProjectSi - 25/8/16 at 08:26 PM
Cheers guys, that's cleared it up a bit. I had all of those vent pipes blanked off...Would this cause the fuel spilling out the carbs issue with them being blanked? I'll be able to go to the car tomorrow so I'll remove the blanks and see how it goes. One of the flaps on cylinder one though is quite stiff, it doesn't open or close near as niceley as the rest do.
chris - 25/8/16 at 10:02 PM
I would take it out and clean the slider all four have to work the same
ProjectSi - 25/8/16 at 10:18 PM
quote:
Originally posted by chris
I would take it out and clean the slider all four have to work the same
Okay will do. Need to change the inlet gasket anyway. All being well should be able to get it going