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Discussion Starter #1
so heres the deal. I bought a 2011 zx10r last year after riding my buddies and was hooked. i put on pirelli corsa tires, graves cat delete slip on, kn air filter. the only mods. Im noticing a decent amount of vibration in those areas in the title more than what his has. Ive read through a bunch of posts but they either werent about my problem or they were about another model. The vibrations start at 4k rpm and become more noticeable as the revs go up in the pegs,bars and seat. The vibrations seem to stop when the clutch is pulled in so im guessing its something with the engine or chassis. Its nothing that seems dangerous but its super annoying.

here is what i have checked....
-torque of engine mounting bolts, tried adjsting the steering head bearing, redid alignment of front wheel, rechecked the mounting of the exhaust. adjusted my sag and suspension, adjusted drive chain, did a fresh oil change, serviced the brakes, adjusted the clutch cable.

its driving me nuts that I cant figure it out or maybe im over thinking it and this bike just naturally vibrates. any help would be great!
 

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I expect it needs a tune, chronic vibration can be caused by "Lean" AFR. Filter and cat delete with slip on is enough to cause that. Long term damaging if its causing vibration.
 

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Discussion Starter #3
I expect it needs a tune, chronic vibration can be caused by "Lean" AFR. Filter and cat delete with slip on is enough to cause that. Long term damaging if its causing vibration.
I was thinking that too but not sure that it would run that lean to really feel it in the seat like i do. at idle the mixture seems quite rich as you can really smell the unburnt gas. but i was planning on getting a tune done.
 

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No pro here, but I probably wouldn't run a stock map with a 3/4 system for a long period of time. My bike, like your friends, doesn't have much vibration in it either, especially compared to my friends GSXR1000R, which has a TON of vibration comparatively. My thoughts are similar to the last reply, that your new system coupled with the stock map is making things rough on the motor, and that you should correct the issue soon before it potentially causes more serious damages. I suspect that the tires you put on are going to play little to no role, presuming that you're getting vibration at 4K RPM regardless of whether you're rolling or not. If it were being caused by the tires I would think that you would feel it more exclusively in the handle bars and front end, even with a steering dampener. By the way, did disconnecting the exhaust servo throw any codes for you when you did your cat delete?
 

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Did you check front sprocket for tightness? Swap set of tires with your friend. My ZX10 is the smoothest bike I own. The only vibration I have ever had has been tire related.

I have had the dreaded PCV dead cylinders and did not increase vibration. I have had fouled plugs and the vibration did not increase enough to where I noticed.
 

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Discussion Starter #6
No pro here, but I probably wouldn't run a stock map with a 3/4 system for a long period of time. My bike, like your friends, doesn't have much vibration in it either, especially compared to my friends GSXR1000R, which has a TON of vibration comparatively. My thoughts are similar to the last reply, that your new system coupled with the stock map is making things rough on the motor, and that you should correct the issue soon before it potentially causes more serious damages. I suspect that the tires you put on are going to play little to no role, presuming that you're getting vibration at 4K RPM regardless of whether you're rolling or not. If it were being caused by the tires I would think that you would feel it more exclusively in the handle bars and front end, even with a steering dampener. By the way, did disconnecting the exhaust servo throw any codes for you when you did your cat delete?
Yea the vibration are pretty constant and go away when the clutch is in while rolling so really dont think the tires are too blame. no the servo didnt throw a code because it is still plugged in just took the cables off. when i get it tuned ill have the ecu flashed to remove that.

Did you check front sprocket for tightness? Swap set of tires with your friend. My ZX10 is the smoothest bike I own. The only vibration I have ever had has been tire related.

I have had the dreaded PCV dead cylinders and did not increase vibration. I have had fouled plugs and the vibration did not increase enough to where I noticed.
I actually didnt think to check the front sprocket. ill take a look at that.
 
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