[Proteus]

I have a 2011 ZX-10R with a Yoshimura slipon, still have the catalytic converter on there. Turning the ignition switch to "On" position but not starting the bike, I hear a rapid, annoying clicking noise that is coming from under the seat. It used to stop after a few seconds but now will keep making the sound as long as the switch is turned on. I assume it's the exhaust servo trying to find it's initial end position. There is no FI light coming on but I'm not sure if the servo gears are stripped or the servo just can't synch up. I need to get in there and take a good look at the exhaust valve and servo motor. Anyone had this happen and what's the fix?

 

[Lord-Blueberry]

Would have been my guess as well. My old ZX6-R had issues with the exhaust valve servo. It stripped its gears even though the valve was disconnected.

I think I had to get a new servo, as I did not get the gears alone.

 

[B.H]

I have a 2011 ZX-10R with a Yoshimura slipon, still have the catalytic converter on there. Turning the ignition switch to "On" position but not starting the bike, I hear a rapid, annoying clicking noise that is coming from under the seat. It used to stop after a few seconds but now will keep making the sound as long as the switch is turned on. I assume it's the exhaust servo trying to find it's initial end position. There is no FI light coming on but I'm not sure if the servo gears are stripped or the servo just can't synch up. I need to get in there and take a good look at the exhaust valve and servo motor. Anyone had this happen and what's the fix?

Are the cables still connected for the exhaust valve?

If so, you could do two things.

1. Remove cables and live with the clicking sound.
2. Remove servo and get a servo buddy or similar. No clicking sound and no fault code/light.

 

[apexxscout]

Are the cables still connected for the exhaust valve?

If so, you could do two things.

1. Remove cables and live with the clicking sound.
2. Remove servo and get a servo buddy or similar. No clicking sound and no fault code/light.

Yeah, and that's why no FI light, maybe. Once cables and that pully part, if I recall, are removed, then he'll have the FI light.

 

[B.H]

Yeah, and that's why no FI light, maybe. Once cables and that pully part, if I recall, are removed, then he'll have the FI light.

Mine still has the servo, but, no cables.

No light or fault.

 

[Proteus]

OK, if I disconnect the servo cables, there will be no FI light as long as I keep the servo plugged in? I really don't care about the sound, I'm wondering about whether the servo gears are stripped and what effect this is having on my exhaust valve position? If the servo gears are stripped, what position does the exhaust valve stay in? I assume it is spring loaded in one direction or the other, either to full open or fully closed? If it's fully open, the only thing I should notice is a slight loss of low end from the loss of exhaust back pressure, if it's fully closed it won't make power on the top end. Bike seems plenty powerful on top, so I don't know. Thanks!

 

[Proteus]

Mine still has the servo, but, no cables.

No light or fault.

Are the cables still connected for the exhaust valve?

If so, you could do two things.

1. Remove cables and live with the clicking sound.
2. Remove servo and get a servo buddy or similar. No clicking sound and no fault code/light.

I'd like to go option 1, just wondering what the default position of the exhaust valve is going to be with the cables off there?

 

[B.H]

I'd like to go option 1, just wondering what the default position of the exhaust valve is going to be with the cables off there?

I'm not sure on our bikes.

On the Gixxers, the valve would be spring loaded open by default.

 

[apexxscout]

Mine still has the servo, but, no cables.

No light or fault.

Trying to remember; the pancake pully I pulled with the cables. The servo's attached to that pully or is the pully the servo. Been awhile, near 10 years for the '13