Exhaust Servo Help Please - 600RR.net
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post #1 of 6 (permalink) Old 06-15-2014, 02:18 PM Thread Starter
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Exhaust Servo Help Please

Hey guys,
I know there is probably a thread out there, but I have not stumbled upon it yet. Every thread is always about trying to bypass the servo and people with slip on and full exhaust systems...
Anyway, here's my story/question: I just bought an 09cbr600rr with 3650 miles on it. It has the stock exhaust on it still. It is flashing code 34 (3 long, 4 short blinks). This has to do with the exhaust servo and something about high voltage or what not? So I want to know...how can i fix it or adjust it myself?? All wires appear to be plugged in tightly underneath the seat. I opened up the servo housing and watched the servo turn a little bit when i turn the key in the on position. (The servo only rotates the cable thing like 5mm maybe, doesnt seem like it's tunring it a whole lot). So why is the light coming on? I tried adjusting the cable myself a few times, all the way one way and all the way the other way and the code 34 still shows. Could it be that I didn't reset the computer or unplug the battery between adjustments? Is the servo motor shot because it's only moving the cables a little bit?
Also, if i just get a "servo buddy" that bypasses the whole system, that should make the light go away right? And then i can just unhook the servo and the cables? Would the exhaust valve be in the open position if i unhooked it? The bike runs and drives fine. Has seemingly all of its power, its just that the code 34 keeps flashing and its driving me nuts lol. Thank you for any insight and i apologize if this was posted somewhere else, I just couldnt seem to find the answer i was looking for... And i dont really want to take it to the shop just yet.
Thanks, Nick
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post #2 of 6 (permalink) Old 06-15-2014, 05:53 PM
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If you decided to do the servo removal which is not a bad thing to do if your servo is broken.

You have to tie the valve open using a safety wire
https://www.600rr.net/vb/showthread.php?t=392145&page=4

I'll take some pictures of mine if you want to see how to tie them. It's not pretty but it does the job.

There is a howto in here to make your own servo removal which I did and working just fine.
https://www.600rr.net/vb/showthread.php?t=103279
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post #3 of 6 (permalink) Old 06-15-2014, 06:55 PM Thread Starter
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Thank you for the quick reply! I may just end up removing it. Just curious, does anyone have any experience adjusting the cables if that could be the problem? And could anyone message me a link or download for the 09 service manual? I looked on google an all of the websites look sketch
Nick
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post #4 of 6 (permalink) Old 06-23-2014, 09:17 PM
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Servo valve may be stuck?

IIRC it cycles open/closed at key turn.
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post #5 of 6 (permalink) Old 10-07-2014, 05:37 PM
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Quote:
Originally Posted by rinonz View Post
If you decided to do the servo removal which is not a bad thing to do if your servo is broken.

You have to tie the valve open using a safety wire
https://www.600rr.net/vb/showthread.php?t=392145&page=4

I'll take some pictures of mine if you want to see how to tie them. It's not pretty but it does the job.

There is a howto in here to make your own servo removal which I did and working just fine.
https://www.600rr.net/vb/showthread.php?t=103279
Did you ever take pics of how you safety wired the valve open? My bikes throwing the FI 35 code too and I'm looking for a quick fix until I can replace it.
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post #6 of 6 (permalink) Old 10-08-2014, 06:51 AM
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Quote:
Originally Posted by BDT View Post
Did you ever take pics of how you safety wired the valve open? My bikes throwing the FI 35 code too and I'm looking for a quick fix until I can replace it.
Unfortunately no.. but here's how I did it:
Remove the spring
Take safety wire and loop it around whatever handle you can get to keep it open.

Then close the cover back.
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