Gen 2: 2006-2007 Engine Tapping what could it be? - Page 2 - Kawasaki
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post #11 of 19 Old 05-13-2018, 02:18 AM Thread Starter
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Yeah I agree, something is hitting something but can't imagine what else it could be. If it were a rod knock (or rod tap) then the rod bearings would have looked abnormal when I had that apart. I'm sure it has to be the valve tapping the head or the valve hitting the top of the piston (which would normally bend it or shatter it). I will keep you updated I am going to break it apart again this week to see if I can see anything that I may have missed.
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post #12 of 19 Old 05-13-2018, 05:09 AM
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I think if you don't find anything on your gonna split the cases measure out little & big ends check for broken rings and damaged skirts, was there any unusual marks on the cylinders? Mate i hope someone comes along with a fresh idea.
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post #13 of 19 Old 05-13-2018, 07:52 AM
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I always carry one of these on my service truck. Lots of different sources sell them.....

They help when you have a noise ,like yours, where you are not 100% sure of where its coming from.
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post #14 of 19 Old 05-13-2018, 09:14 AM
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Originally Posted by parson.phillip View Post
Alright everyone knows about the Kawi Tick right. I have a Tapping sound coming from the engine. Sounds like it's coming directly from the exhaust ports. I have removed the head and checked for any play in the pistons (for possible slipped bearing) no play in all 4 pistons still tapping. I have replaced the cam chain tensioner still tapping. I did a valve clearance check all are well within spec (I checked the manual for the proper clearance) still tapping. I thought maybe it could be the valves so I replaced piston 2 and 3's exhaust valves and its still tapping haha. Any thoughts ?

What I have done to it:
1) Replaced cam chain
2) Replaced cam chain tensioner
3) Checked for rod knock
4) Checked valve clearance
5) Replaced piston 2 and 3 exhaust valves

Any help would greatly be appreciated.

Do you have a quick way to check the crankshaft straightness and connecting rod straightness? If it is not in the tolerances then may be check for straightness.
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Last edited by ZX10; 05-13-2018 at 09:16 AM.
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post #15 of 19 Old 05-13-2018, 01:00 PM
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sticky valve, the sound is more on the number 1 cylinder. replace valve guides.
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post #16 of 19 Old 05-13-2018, 08:06 PM Thread Starter
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I will try that tonight and see if it helps it.
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post #17 of 19 Old 05-25-2018, 02:16 PM
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In the video, the sound seems to go away when it is revved. Does it make the same sound when riding it?
Had a similar experience with a friends gen 3 zx10r, ended up removing the clutch and pressure plates which eliminated the sound. He replaced the clutch fixing the issue.
I do suggest checking if the sound goes away when driving it, this places a load on the clutch. Pressing the plates against the basket eliminating any sound produced by worn clutch discs.

Using a Car Engine Block Stethoscope works well to find the source of a particular noise, I can highly recommend one.
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post #18 of 19 Old 05-29-2018, 03:26 PM
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Any new information on this?

Have a wheelie nice day!

Winter sucks.
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post #19 of 19 Old 06-13-2018, 09:01 AM
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try tightening the cam could be slapping pretty bad

Although I'm young I am still intelligent, wise, and certain times I just choose not to be...

Really though, anyone who mounts up on something that has as much horsepower as a Lotus and weighs as much as the average bloke from Wisconsin must be flipping bonkers...
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