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Draco87
Renault 5 Driver



Joined: 04 Oct 2013
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PostPosted: 12:55 - 27 May 2016    Post subject: Carb Jets Reply with quote
Hey guys hopefully someone can help,

First off ill give you the symptoms; I have a 2000 R6, which has aftermarket exhaust and air filter(K&N) carbs have been balanced correct. But the I cant the idle to regulate properly; at 1500 rpm it oscillates (needle in tach going up and down) and pulling off is slightly hesitant. After research I found I could have the wrong pilot jets installed which was my assumption. After further research I found the carb to be a Keihin CVRD37 (apparently). So set about trying to find jets I can only find jets for different models I.e FCR, NCR424. Can anyone explain to me what jets I need exactly and what would fit? I will be buying one size up and one size down to see which works best.

Thanks

Craig
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1992 Yamaha SR125, 2005 Honda XR125, 1998 Yamaha XJ600S, 2000, 2004 Yamaha R6, 2002 Yamaha Fazer, 2004 Honda CBR
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Meatybeaty
World Chat Champion



Joined: 10 Apr 2016
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PostPosted: 14:37 - 27 May 2016    Post subject: Reply with quote
Hi , you will find the jet sizes in your Workshop Manual, specifications page Thumbs Up
https://www.bikechatforums.com/viewtopic.php?t=21133&view=next
https://www.jetsrus.com/a_jet_kit_street/yamaha_600_YZF-R6.htm
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Draco87
Renault 5 Driver



Joined: 04 Oct 2013
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PostPosted: 17:12 - 27 May 2016    Post subject: Reply with quote
Meatybeaty wrote:
Hi , you will find the jet sizes in your Workshop Manual, specifications page Thumbs Up
https://www.bikechatforums.com/viewtopic.php?t=21133&view=next
https://www.jetsrus.com/a_jet_kit_street/yamaha_600_YZF-R6.htm


Most helpful dude 😊 thank you ill have a look in my manual and strip out current carbs to determine which size are in now
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1992 Yamaha SR125, 2005 Honda XR125, 1998 Yamaha XJ600S, 2000, 2004 Yamaha R6, 2002 Yamaha Fazer, 2004 Honda CBR
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Ariel Badger
Super Spammer



Joined: 02 Dec 2006
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PostPosted: 21:26 - 27 May 2016    Post subject: Reply with quote
I wonder why California has different settings., emission laws?
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Draco87
Renault 5 Driver



Joined: 04 Oct 2013
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PostPosted: 22:22 - 27 May 2016    Post subject: Reply with quote
Ariel Badger wrote:
I wonder why California has different settings., emission laws?


From doing all the research its something to do with atmospheric pressure, what with all the hills and all Laughing. But hey i might just be talking out my arse!
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Ariel Badger
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Joined: 02 Dec 2006
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PostPosted: 22:34 - 27 May 2016    Post subject: Reply with quote
A friend of mine rode a Royal Enfield through the Himalayas and they had to re-jet because of altitude.
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Draco87
Renault 5 Driver



Joined: 04 Oct 2013
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PostPosted: 22:41 - 27 May 2016    Post subject: Reply with quote
Ariel Badger wrote:
A friend of mine rode a Royal Enfield through the Himalayas and they had to re-jet because of altitude.


Would make sense as lack of air the higher you get (poor poor bikes)
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jjdugen
World Chat Champion



Joined: 03 Jun 2011
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PostPosted: 23:53 - 27 May 2016    Post subject: Reply with quote
California runs everything lean for emissions. Most Jap bikes run at least one size down from ideal.
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