Adjusted valve clearances. Now it's clicking...

[pekingduck]

I agree with Max about tracing the noise source. A stethoscope is an inexpensive and extremely accurate way to track the noise source. I have traced failing main bearings with one. You can buy one at Harbor Freight for less than $4.

Do not recommend oiling either side of the shim, or the cam follower bucket and valve stem where the shim contacts, only on the bucket's outer surface. These shims don't wear, and oil can prevent the shims from properly seating, and give an inaccurate reading.

[Jurlie_imp]

Guys, thanks for advices and suggestions. I'll go for stethoscope tomorrow.
Today I was hearing it using wrench. Doesn't seem like it is valves at all. Maybe PAIR valves (btw what is it for and how it works?) or whatever else is in between tank and engine head.

Tried to ride. Engine works well and smoothly as always. Ticking gets much louder when I accelerate agressively, and becomes almost indistinct when I close the throttle and roll by momentum.

Here is the the video from right handside
https://youtu.be/TX2Dk9sMrXU?t=21

and from left handside
https://youtu.be/UrfjDWVs74k

You can hear easily that ticking get louder when I open the throttle in first video. On acceleration during the ride (when the engine gets actual load) it gets much louder that this.
On left handside it is barely audible.

At least I don't need to open the engine again...

[max]

Pulsed Air valves are a secondary air ( Oxygen ) supply into the exhaust system to help burn the gas more complete thereby reducing emissions from the exhaust, this guy explains it fairly well;
https://www.youtube.com/watch?v=_xMykbzJWiQ

Listening to your first video ( see how useful that is? ) i would suggest having a look at the exhaust flange nuts on the cylinder head and see if any are loose, don't overtighten, just check if any are loose, could be exhaust gas escaping under load.
You could listen with a small plastic aquarium hose to pinpoint the noise if it is exhaust gas.
Congratulations on the fine job on the valves and all the notes on the measurements.

Peking duck thanks for the tip on ( not ) lubricating the shims, i see what you mean now.

[zirconxi_imp]

Guys, thanks for advices and suggestions. I'll go for stethoscope tomorrow.
Today I was hearing it using wrench. Doesn't seem like it is valves at all. Maybe PAIR valves (btw what is it for and how it works?) or whatever else is in between tank and engine head.

Tried to ride. Engine works well and smoothly as always. Ticking gets much louder when I accelerate agressively, and becomes almost indistinct when I close the throttle and roll by momentum.

Here is the the video from right handside
https://youtu.be/TX2Dk9sMrXU?t=21

and from left handside
https://youtu.be/UrfjDWVs74k

You can hear easily that ticking get louder when I open the throttle in first video. On acceleration during the ride (when the engine gets actual load) it gets much louder that this.
On left handside it is barely audible.

At least I don't need to open the engine again...

This right hand side video sound just like my bike. Mine sound like this after i drop the bike stationary and it hit my 4-2-1 full system. Mine the sound kind of emit from the joints pipe in between the header and mid pipe...maybe its related.

[GoldOxide_imp]

Guys, thanks for advices and suggestions. I'll go for stethoscope tomorrow.
Today I was hearing it using wrench. Doesn't seem like it is valves at all. Maybe PAIR valves (btw what is it for and how it works?) or whatever else is in between tank and engine head.

Tried to ride. Engine works well and smoothly as always. Ticking gets much louder when I accelerate agressively, and becomes almost indistinct when I close the throttle and roll by momentum.

Here is the the video from right handside
https://youtu.be/TX2Dk9sMrXU?t=21

and from left handside
https://youtu.be/UrfjDWVs74k

You can hear easily that ticking get louder when I open the throttle in first video. On acceleration during the ride (when the engine gets actual load) it gets much louder that this.
On left handside it is barely audible.

At least I don't need to open the engine again...

Actually, a good capture of the symptom. Sometimes people have trouble capturing these types of sounds.

[Django]

Guys, thanks for advices and suggestions. I'll go for stethoscope tomorrow.
Today I was hearing it using wrench. Doesn't seem like it is valves at all. Maybe PAIR valves (btw what is it for and how it works?) or whatever else is in between tank and engine head.

Tried to ride. Engine works well and smoothly as always. Ticking gets much louder when I accelerate agressively, and becomes almost indistinct when I close the throttle and roll by momentum.

Here is the the video from right handside
https://youtu.be/TX2Dk9sMrXU?t=21

and from left handside
https://youtu.be/UrfjDWVs74k

You can hear easily that ticking get louder when I open the throttle in first video. On acceleration during the ride (when the engine gets actual load) it gets much louder that this.
On left handside it is barely audible.

At least I don't need to open the engine again...

That supports my idea, that it's a PAIR valve. That's a metallic membrane at the outlet which opens by low pressure caused by the exhaust gas flow, to suck O2 into the exhaust gas to burn the rest of the CO.

I think you may have touched it, when removing the cover of the valve drive. May be the membrane now has some contact to the metallic case and thus transports its noise.

[Jurlie_imp]

Guys, thanks for advices and suggestions. I'll go for stethoscope tomorrow.
Today I was hearing it using wrench. Doesn't seem like it is valves at all. Maybe PAIR valves (btw what is it for and how it works?) or whatever else is in between tank and engine head.

Tried to ride. Engine works well and smoothly as always. Ticking gets much louder when I accelerate agressively, and becomes almost indistinct when I close the throttle and roll by momentum.

Here is the the video from right handside
https://youtu.be/TX2Dk9sMrXU?t=21

and from left handside
https://youtu.be/UrfjDWVs74k

You can hear easily that ticking get louder when I open the throttle in first video. On acceleration during the ride (when the engine gets actual load) it gets much louder that this.
On left handside it is barely audible.

At least I don't need to open the engine again...

That supports my idea, that it's a PAIR valve. That's a metallic membrane at the outlet which opens by low pressure caused by the exhaust gas flow, to suck O2 into the exhaust gas to burn the rest of the CO.

I think you may have touched it, when removing the cover of the valve drive. May be the membrane now has some contact to the metallic case and thus transports its noise.

Thanks for the idea! I'll check it as soon as I'll get to my bike.

[Django]

Part 3, 5 and 8 in the drawing:
https://www.bike-parts-honda.com/honda-m...01/1/14498

[GoldOxide_imp]

Guys, thanks for advices and suggestions. I'll go for stethoscope tomorrow.
Today I was hearing it using wrench. Doesn't seem like it is valves at all. Maybe PAIR valves (btw what is it for and how it works?) or whatever else is in between tank and engine head.

Tried to ride. Engine works well and smoothly as always. Ticking gets much louder when I accelerate agressively, and becomes almost indistinct when I close the throttle and roll by momentum.

Here is the the video from right handside
https://youtu.be/TX2Dk9sMrXU?t=21

and from left handside
https://youtu.be/UrfjDWVs74k

You can hear easily that ticking get louder when I open the throttle in first video. On acceleration during the ride (when the engine gets actual load) it gets much louder that this.
On left handside it is barely audible.

At least I don't need to open the engine again...

That supports my idea, that it's a PAIR valve. That's a metallic membrane at the outlet which opens by low pressure caused by the exhaust gas flow, to suck O2 into the exhaust gas to burn the rest of the CO.

I think you may have touched it, when removing the cover of the valve drive. May be the membrane now has some contact to the metallic case and thus transports its noise.

That supports my idea, that it's a PAIR valve. That's a metallic membrane at the outlet which opens by low pressure caused by the exhaust gas flow, to suck O2 into the exhaust gas to burn the rest of the CO.

I think you may have touched it, when removing the cover of the valve drive. May be the membrane now has some contact to the metallic case and thus transports its noise.
Forum member support at its finest!

[Jurlie_imp]

Part 3, 5 and 8 in the drawing:
https://www.bike-parts-honda.com/honda-m...01/1/14498

I didn't touch those...
I listened to my bike with the stethoscope, and wasn't able to localize this ticking sound to any particular part of the engine.
Everything being touched by stethoscope sounds differently that I can hear by ears, including PAIR valve places.
Maybe just this one I point by the needle in the picture. Rhythm is the same, but here it didn't get louder while throttling.
[url=https://ibb.co/KzFKXFd]
Have to check all bolts and nuts.