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CBR 600F4 1999 - 2000 Honda CBR 600F4 Forum

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Old 05-17-2018, 12:26 PM
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Join Date: Mar 2018
Location: South Jersey
Posts: 17
Default I need help

So I have a 2000 600f4. It has a short exhaust and I just put a k&n air filter on it. I'm told I have to rejet the bike now. Cause of the weather here in Jersey I haven't been able to ride to see if it is performing any better or worse. I bought the bike used and don't know if the previous owner jetted the bike already. So for sake of arguemea, what am I gonna have to do. Please PM me .Thanks

Last edited by CaBaRet; 05-18-2018 at 12:35 AM.
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Old 05-18-2018, 12:39 AM
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Join Date: Oct 2016
Location: UK
Posts: 1,325

Hi , not a good idea to put up your email address ,so changed that to PM, as regards the site try using Google as your browser I have the same trouble with
Windows EDGE, here is some information that might suit you
Jet Kits How to :: Before you start Re-jetting! - Jet kits for Carburetors
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Old 05-19-2018, 02:28 PM
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Join Date: Jan 2017
Location: Allyn, WA USA
Posts: 61

Depending on the exhaust you may or may not notice a need for rejetting. I have a '99 that has a Delkevic exhaust and a K&N air filter. My son-in-law (who had the bike before me) added the air filter and I know he never rejetted the bike. The only thing I've noticed is a slight hesitation at very low RPM and the usual "popping" on deceleration. Other than that the bike runs fantastic.

So, before diving into a rejetting project ride it and see how it runs.
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