mad4x4
|
| posted on 1/6/08 at 04:38 PM |
|
|
Bike Carbs Fall Off
I'm having trouble with some zx750 bike carbs. The flange on the rear of the carbs is so short that I am struggling to get the silicaone hose
and Hose Clip to Stay on. I get them on and tighten up the hose clip and it will pull the pip off the lip.  what can I do. O when running on idle
the suction is manageing to pull in the silicone hose and pull it off the flange.
I have just cut lengths of silicone hose and used that. Surly bike must have a better fitting. Where do you get those green hoses Bogg borthhers
use?
Other problem I have is when running the carbs "bounce" about a good bit
Scot's do it better in Kilts.
MK INDY's Don't Self Centre Regardless of MK Setting !
|
|
|
|
|
Danozeman
|
| posted on 1/6/08 at 04:46 PM |
|
|
Mine bounce about. I have a bogg bros set and they have thing jubilee clips on.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
|
|
|
coozer
|
| posted on 1/6/08 at 04:47 PM |
|
|
When I was constructing my manifold I saw some similar post so I used the original bike inlet rubbers mounted onto plates welded to the tubes. They
have ribs on the inside the grip the grooves on the carbs. Just done a track day and had no problems in 90 miles.
 
Rescued attachment Inlet2.JPG
1972 V8 Jago
1980 Z750
|
|
|
r1_pete
|
| posted on 1/6/08 at 04:50 PM |
|
|
I've fab'd a pair of stabiliser brackets, to try and replicate the stabilising effect the airbox has when installed on the bike:
[Edited on 1/6/08 by r1_pete]
 
Rescued attachment DSCN0828.JPG
|
|
|
r1_pete
|
| posted on 1/6/08 at 04:51 PM |
|
|
The opposite end
 
Rescued attachment DSCN0827.JPG
|
|
|
rusty nuts
|
| posted on 1/6/08 at 04:54 PM |
|
|
Had to make some stabiliser brackets for my TBs , was able to drill and tap the manifold flange to bolt them on and used a couple of tapped holes in
the TBs Been OK for a year now. Silicon hose isn't the best stuff to use for carbs or TBs
|
|
|
jacko
|
| posted on 1/6/08 at 04:57 PM |
|
|
Supper glue the rubber pipe to the carbs then j/clip, that is what i have done had NO problems and they have been onabout 2 years know
Graham
|
|
|
mad4x4
|
| posted on 1/6/08 at 05:16 PM |
|
|
What can I use istead of silicone hose (dia is about 46mm)
My carbs are GSXR750 what are suitable "inlet rubbers"
Scot's do it better in Kilts.
MK INDY's Don't Self Centre Regardless of MK Setting !
|
|
|
r1_pete
|
| posted on 1/6/08 at 05:31 PM |
|
|
I'm using the 45mm version of THIS
|
|
|
matt_claydon
|
| posted on 1/6/08 at 05:39 PM |
|
|
You could consider using stainless exhaust clamps instead of jubilee clips. You can do them a hell of a lot tighter. Like these:
I'd recommend using fuel hose as above. Silicone isn't fuel resistant generally and the rubber stuff probably has higher friction.
|
|
|
mad4x4
|
| posted on 3/6/08 at 05:59 AM |
|
|
quote:
Originally posted by matt_claydon
You could consider using stainless exhaust clamps instead of jubilee clips. You can do them a hell of a lot tighter. Like these:
I'd recommend using fuel hose as above. Silicone isn't fuel resistant generally and the rubber stuff probably has higher friction.
Flange on back of carbs is very narrow so think they migth push off - ordered Original rubbers of of the Bay.
Scot's do it better in Kilts.
MK INDY's Don't Self Centre Regardless of MK Setting !
|
|
|
Jenko
|
| posted on 3/6/08 at 08:14 AM |
|
|
OK, not carbs, but I made up some brackets for my Bike TB's to hold them on, It still allows a little bit of flex.....
Click
|
|
|
02GF74
|
| posted on 4/6/08 at 10:44 AM |
|
|
quote:
Originally posted by coozer
When I was constructing my manifold I saw some similar post so I used the original bike inlet rubbers mounted onto plates welded to the tubes. They
have ribs on the inside the grip the grooves on the carbs. Just done a track day and had no problems in 90 miles.
Surely it is clear that this the problem when using smooth bore hose?
you need to somehow replicate this or use the original rubbers.
Probably cutting a grove in the hose and using an O-ring would solve this. How this is achieved is left to the reader to figure out. 
|
|
|
David Jenkins
|
| posted on 4/6/08 at 11:12 AM |
|
|
This is one of the pipes from my inlet manifold, just before it was welded.
You can see the groove where the bike carb connecting rubber locates.
David
|
|
|
myke pocock
|
| posted on 13/6/08 at 09:01 PM |
|
|
I have Honda Fireblade carbs on my Skoda Estelle trials car. I had the inlet pipes made up locally and welded to my own made manifold plate. The pipes
used had to be sleeved to fit the bike rubbers and didnt have any grooves in them. I made up mounting grackets rather like the plates in the photos,
using the cross shaft that secures all the carbs together in one line and fitting on to a manifold stud at each end. 7,500 rpm and bouncing up and
down a variety of rough tracks did nothing to dislodge them. RESULT!!!
|
|
|
DarrenW
|
| posted on 13/6/08 at 09:08 PM |
|
|
My manifold has groove cut in end of pipes.
I had same bother when using silicon - found it went mushy / slippy. Changed hose and no trouble since. Still have some hose left.
|
|
|
.jpg)
