tigris
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| posted on 13/1/08 at 09:36 PM |
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r1 carb stickythrottle
when hand turning the butterflies open, there is quite a restriction, letting off they gradually close. is this normal, I'd expect them to snap
back?
thanks
[Edited on 13/1/08 by tigris]
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zxrlocost
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| posted on 13/1/08 at 09:41 PM |
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they should snap back
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tigris
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| posted on 13/1/08 at 09:43 PM |
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hmm
where should I oil it then?
Also, does anyone have pics of a carb setup, I forget where all of these lines go.
Stupid efi guy!
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jacko
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| posted on 13/1/08 at 09:54 PM |
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My zx9r carb were the same i fitted a second spring and there ok know
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adithorp
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| posted on 13/1/08 at 10:53 PM |
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My R1 inj' was the same. Only does it when running, and then snapping it shut. No sign of it when the engine is off. Think its high vacuum in
the manifold caused by the snap shut that holds the throttle just open. I've added another return spring.
adrian
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mad-butcher
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| posted on 13/1/08 at 11:33 PM |
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hope this helps
 
Rescued attachment carburetor.jpg
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Coose
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| posted on 14/1/08 at 09:05 AM |
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You shouldn't need a second spring to make them snap shut. Either they've been stored in the sea or are full of muck and need some serious
attention, or the return spring has been removed/is broken. Fitting a second spring will not cure the problem and will probably cause further damage
if the butterflies/shaft is binding.
Spin 'er off Well...
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Bob C
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| posted on 14/1/08 at 01:56 PM |
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I remember when my engine was in boxes for a couple of years... the throttle spindle of the carbs seemed just a little reluctant to spring back to the
stop. Once on the engine, in the car, it has been fine. Maybe having petrol near it did the job, maybe the vibration of a running engine
Bob
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Johneturbo
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| posted on 12/4/08 at 06:28 PM |
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quote:
Originally posted by adithorp
My R1 inj' was the same. Only does it when running, and then snapping it shut. No sign of it when the engine is off. Think its high vacuum in
the manifold caused by the snap shut that holds the throttle just open. I've added another return spring.
adrian
adrian where have you added the extra spring? a pic would be great 
mines not snapping shut, i think due to the weight of the throttle cable.
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stuart_g
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| posted on 12/4/08 at 08:06 PM |
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John, I had exactly the same problem, I added a return spring and problem solved.
Here's a pic.
 
Rescued attachment Extra return spring.JPG
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adithorp
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| posted on 12/4/08 at 09:08 PM |
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Sorry, no picture of mine. I take some monday and post them. Here's another set up I saw at Donnington.
http://i189.photobucket.com/albums/z282/adrianthorp/skixmas07005.jpg
Quite neat and could be an upgrade from my braket and spring.
adrian
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Johneturbo
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| posted on 13/4/08 at 07:04 PM |
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thanks a lot guys, i've got a box of 100 springs somewhere plus the original cable so should be sorted
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Johneturbo
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| posted on 14/4/08 at 06:18 PM |
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Here's what i came up with. needs a bit of finishing, i used the orignal cable cut down and attached to a spring that runs inside that
tube
 
Rescued attachment Tcable.jpg
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