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Old 11-05-2012, 10:03 AM   #1
racingdynamics
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HELP!!!! ...Keihin Carb GURUS!

Hey Guys n Gals,

I need ur help pls.

I have just installed a set of 41MM Keihin Carbs on my CARB R1 and all is well apart from the fact that there is a metal on metal type clapping sound coming from the metal. I'm worried! Can someone pls help!?!?


Kris
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Old 11-05-2012, 10:46 AM   #2
thnakdone
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When is this sound happening? When you open up the throttle revving.... ??? also where is the sound coming from? all you state is from the metal... what metal where? from the carb base.. ??? Better details will greatly help anyone diagnose it..... plus when was the last time you had the vavles checked?
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Old 11-05-2012, 11:14 AM   #3
racingdynamics
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Oops sorry.

Well the noise comes during idle only and comes from inside the carb

Thanks in advance for the help

Kris

Ps. I just got the bike. I was riding it with the stock carbs n no issues... No noise. Thnks
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Old 11-05-2012, 11:27 AM   #4
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is it a smooth idle? it may be the throttle cam plates closing and hitting the throat of the carb if the idle isnt smooth..... vaccuum drops and partly closes the plate...if the idle is too low you can adjust it up some and that should prevent it.... also does it happen when the bike is at operating temp or just when it is still cold/ right after starting? having the bike warmed up will help the idle greatly
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Old 11-05-2012, 11:29 AM   #5
racingdynamics
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It is a smooth idle. Bike runs great. Just worried as first time and noise seemed weired. So if that is the case is it ok? Serious or can be left as is?
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Old 11-05-2012, 11:33 AM   #6
thnakdone
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as long as the idle is smooth and that it runs fine when revved I wouldnt worry about it.... also if you hear it without the airbox and tank over it, you will notice it quickly... carbs tend to be a bit noisier than FI.... it has been along time since I have had any keihins on a bike so I am reaching a bit on remembering how noisy they were... not since my old 81 gs1100r... LOL so it has been about 11 years or so.... LOL
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Old 11-05-2012, 11:38 AM   #7
racingdynamics
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Lol. Thanks bro. I'm releaved!!!

But I did not know u can rock the airbox! I tried so much but no way- would not fit. Unless it varies from bikes to bikes!?
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Old 11-05-2012, 12:07 PM   #8
zx7marsh
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FCR41's

Your probably refering to the rattle made by the throttle slides and its normal. The noise is FCR music
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Old 11-05-2012, 12:10 PM   #9
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Your probably refering to the rattle made by the throttle slides and its normal. The noise is FCR music
+1

It's the best sound ever for a carbed bike.
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Old 11-05-2012, 12:11 PM   #10
racingdynamics
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Hmmm.... If.that's.the.case let's danceeee !!!!!!
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Old 11-05-2012, 12:13 PM   #11
zx7marsh
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I have a video of mine I tried to attach but was unsuccessful.
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Old 11-05-2012, 12:14 PM   #12
thnakdone
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you have to modify the airbox to use it... fvck it, they get better air without it...LOL

I want a set for one of my 99's...
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Old 11-05-2012, 12:16 PM   #13
racingdynamics
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Try youtube bro
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Old 11-05-2012, 12:42 PM   #14
zx7marsh
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See if this worked. http://youtu.be/p2c3syR6RcM
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Old 11-05-2012, 12:47 PM   #15
racingdynamics
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Yessss ahahahaa! That's the noise! Ahahahaha .... I'm glad all is good then
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Old 11-05-2012, 12:49 PM   #16
zx7marsh
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Great music at WOT !!!!!!!!
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Old 11-05-2012, 05:38 PM   #17
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hahahaha... I didnt hear any noise... ok, it sound like it should to me...lol just messsing with you...
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Old 11-05-2012, 05:43 PM   #18
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Sexy time!
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Old 11-06-2012, 05:26 PM   #19
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Yep, miss those carbs.
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Old 11-06-2012, 05:34 PM   #20
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fawk they're noisy bitches...
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