carb coughing???

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firestorm1980
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Joined: Thu Oct 03, 2013 6:05 pm

carb coughing???

Post by firestorm1980 »

Ok brainiacs!!
Every now and then when either sat stationary or slowing down i can hear what sounds like the carbs coughing and the revs drop!!
Any ideas??
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lloydie
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Location: In the garage somewhere in Coventry

Re: carb coughing???

Post by lloydie »

Normal ,don't worry you'll get used to it
Virt
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Re: carb coughing???

Post by Virt »

Mine does it too, there's two options.

1) Ignore it.

2) Keep the revs high so it doesn't happen :wink:
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firestorm1980
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Re: carb coughing???

Post by firestorm1980 »

Its driving me insane!!!!

Must be a way of stopping it?? :Argue 1:
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lloydie
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Re: carb coughing???

Post by lloydie »

firestorm1980 wrote:Its driving me insane!!!!

Must be a way of stopping it?? :Argue 1:
Yep run it a little rich and fit a +4 ignition advance and a fuel pump
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E.Marquez
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Re: carb coughing???

Post by E.Marquez »

Proper jetting, synced carbs, no exhaust air leaks, PAIR gone.. ...and the carb fart is gone as well.

There is no need to live with it.
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gl_s_r
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Re: carb coughing???

Post by gl_s_r »

E.Marquez wrote:Proper jetting, synced carbs, no exhaust air leaks, PAIR gone.. ...and the carb fart is gone as well.

There is no need to live with it.
That told you Lloydie... :lol:

I'm starting to think you know nothing about these bikes!
Why ask... sometime you just go to do it and find out?
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Hairy biker
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Re: carb coughing???

Post by Hairy biker »

Mine used to do it all the time and would cut out as well, set the tps sensor and sync the carbs made a world of difference, it still does it occasionally bit no longer cuts out,it's probably running a sniff lean bit if I remember correctly you need a weird looking gizmo to adjust the mixture with the carbs on the bike
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VTRDark
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Re: carb coughing???

Post by VTRDark »

Yep run it a little rich and fit a +4 ignition advance and a fuel pump
Explain yourself young man. :lol: :Ball Kick:

A tune up is what's needed. Make sure your timing and valve clearances are all good to start with or skip that bit (but better to check first :wink: ) then as E.Marquez says + the TPS adjustment helps alleviate it.

These are the biggest carbs you will find on a production bike and are sensitive to small changes!! Things like carb balancing make a difference. You may want to fit a front vaccum take off for ease of carb syncing.
http://www.vtr1000.org/phpBB3/viewtopic ... 31&t=18430

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lloydie
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Re: carb coughing???

Post by lloydie »

gl_s_r wrote:
E.Marquez wrote:Proper jetting, synced carbs, no exhaust air leaks, PAIR gone.. ...and the carb fart is gone as well.

There is no need to live with it.
That told you Lloydie... :lol:

I'm starting to think you know nothing about these bikes!
I don't . The only time I tuned to cough out was when I fitted standard carbs and cans .
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lloydie
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Re: carb coughing???

Post by lloydie »

cybercarl wrote:
Yep run it a little rich and fit a +4 ignition advance and a fuel pump
Explain yourself young man. :lol: :Ball Kick: (:-})
From what I've read and done there's many old wife's tales on how to get not to do it .
Some work some don't even with the carbs set up perfect it still did it now and then .
Yes cleaning balancing the carbs and setting the tps helps as dose a full service but it will still happen now and then .
If you've managed to stop it from doing it great
Or I'm just talking nonsense again :wink:
Virt
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Re: carb coughing???

Post by Virt »

lloydie wrote: Or I'm just talking nonsense again :wink:
"Again"? When did you stop? :wink:

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lloydie
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Re: carb coughing???

Post by lloydie »

Virt wrote:
lloydie wrote: Or I'm just talking nonsense again :wink:
"Again"? When did you stop? :wink:

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:Lol: I have a condition /-(
Virt
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Re: carb coughing???

Post by Virt »

Living in Cov?

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lloydie
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Re: carb coughing???

Post by lloydie »

Virt wrote:Living in Cov?

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It's not helping !
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