Removing California Emissions?

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Mar 11, 2007 | 06:17 AM

bigassbunny

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Joined: Mar 2007

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Removing California Emissions?

Hello! I have purchased a '99 CBR 600 and I'm looking to remove the California emissions stuff. Specifically, the "charcoal can" is leaking gas, so I want to get rid of it. Anyone know of any sites or manuals that go through how to do this? Also, are there any specific CA emissions items I should be sure to remove in order to get more power, or is it more trouble than it's worth?
Thanks!

Mar 19, 2007 | 05:43 PM

mach9

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RE: Removing California Emissions?

If I recall the California edition bikes have different cams as well, so it very well may be more trouble than its worth.

Mar 30, 2007 | 01:53 PM

baja74vw

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Joined: Apr 2006

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RE: Removing California Emissions?

Quote:

ORIGINAL: bigassbunny

Hello! I have purchased a '99 CBR 600 and I'm looking to remove the California emissions stuff. Specifically, the "charcoal can" is leaking gas, so I want to get rid of it. Anyone know of any sites or manuals that go through how to do this? Also, are there any specific CA emissions items I should be sure to remove in order to get more power, or is it more trouble than it's worth?
Thanks!

Hey Bigassbunny,

I was looking for the same thing years ago for a F2 and LOTS of experimenting later, I have some answers.

I put them on my webpage here:
www.magneticdrainplug.com/Tech_Links/CBR_Desmog_1.html

Once you know what the difference is, it is really not that hard.

Hope this helps!

Tim

Dec 17, 2023 | 11:29 AM

Tarzan369

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Joined: Nov 2023

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From: Florida

Emissions delete

Do u have the write up of removing the emissions on the 99 cbr600f4

Dec 17, 2023 | 12:27 PM

dannoxyz

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Joined: May 2011

Posts: 1,988

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From: Mesa, AZ

None of CA emissions stuff lowers power, so removing won’t gain you any. Main benefit is weight-savings. I measured something around 0,15-0,20 sec/lap @ Laguna Seca after I removed: PAIR valves, EVAP canister, purge valve and all related hoses. Saved about 5-lbs. Got way better improvements in lap times of 0,25-0,30 sec/lap going with lithium battery which removed 9-lbs off bike.