CBR954 EGCV Valve Position Issue - Honda Motorcycles - FireBlades.org
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post #1 of 5 Old 07-05-2014, 2:55 AM Thread Starter
 
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CBR954 EGCV Valve Position Issue

Hey all,

After reading the FSM and doing some searching on the EGCV, I've come to ask if anyone has an idea on how to fix this position issue, or even if it makes any difference to the performance of the bike.

Basically, the EGCV will rotate to 180deg fine and I've aligned it to the mark using service mode. I've warmed the bike up and revved the bike to 3k RPM and the valve rotates to 0deg fine. But it seems no matter how much I adjust the cables the valve will never go back to 90deg, it always reverts to around 94deg every time.

I've checked the valves rotation manually and it seems smooth and I have no FI indication/error.

Just want to check if this can be corrected, or even if it's anything to worry about before I decide to bolt all the covers back on.

Cheers, Marc.
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post #2 of 5 Old 07-05-2014, 3:35 AM
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Re: CBR954 EGCV Valve Position Issue

Quote:
Originally Posted by akeizm View Post
Hey all,

After reading the FSM and doing some searching on the EGCV, I've come to ask if anyone has an idea on how to fix this position issue, or even if it makes any difference to the performance of the bike.

Basically, the EGCV will rotate to 180deg fine and I've aligned it to the mark using service mode. I've warmed the bike up and revved the bike to 3k RPM and the valve rotates to 0deg fine. But it seems no matter how much I adjust the cables the valve will never go back to 90deg, it always reverts to around 94deg every time.

I've checked the valves rotation manually and it seems smooth and I have no FI indication/error.

Just want to check if this can be corrected, or even if it's anything to worry about before I decide to bolt all the covers back on.

Cheers, Marc.

I can't see four-degrees causing any problems, don't worry about it.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder

Last edited by bladeracer; 07-05-2014 at 7:35 AM.
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post #3 of 5 Old 07-05-2014, 7:20 AM Thread Starter
 
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Re: CBR954 EGCV Valve Position Issue

Thought so to bladeracer, just wanted to check anyway.

Wonder if the servo is starting to die, or a signal issue to the servo.
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post #4 of 5 Old 07-05-2014, 7:36 AM
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Re: CBR954 EGCV Valve Position Issue

Quote:
Originally Posted by akeizm View Post
Thought so to bladeracer, just wanted to check anyway.

Wonder if the servo is starting to die, or a signal issue to the servo.

Have you opened the servo up to see if the teeth are good?
Have you removed the airbox flap to reduce the load on the gears?

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #5 of 5 Old 07-06-2014, 4:39 AM Thread Starter
 
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Re: CBR954 EGCV Valve Position Issue

No I haven't. I'll check those out when I next get time to work on it. Thanks for the suggestions.
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