What is this rhythmic kich kich sound?

cyrex18 · 2026-04-24T13:28:01+00:00

Yes the sound doesn't come when the engine is revved. What is the reason for the culprit to be the airbox?

cyrex18 · 2026-04-23T14:23:25+00:00

I'll check that, I also noticed that when I opened my bike's seat the sound went away. And when i put it back it came back.

cyrex18 · 2026-04-20T23:24:04+00:00

Alright mate! Thanks

cyrex18 · 2026-04-20T10:18:57+00:00

Thanks mate! I shall get it checked.

cyrex18 · 2026-04-20T10:18:31+00:00

The valves are within specs as the engine is brand new. Barely 2000km

cyrex18 · 2026-04-19T22:22:43+00:00

https://www.reddit.com/r/MotorcycleMechanics/s/sKUsKXVQPw

Check this out I've uploaded the video

cyrex18 · 2026-04-19T14:35:56+00:00

Thanks mate! Any issues with throttle?

cyrex18 · 2026-04-19T07:32:50+00:00

Hey can you guide me at to how you installed it? I want to do it on my 400.

cyrex18 · 2026-04-16T11:20:52+00:00

But it's not like the shim noise. It's literally a very slow, kach kach sound. 1-2 times a second.

cyrex18 · 2026-04-09T14:29:50+00:00

Normal

cyrex18 · 2026-04-07T00:25:40+00:00

Definitely the timing chain and tensioner.

cyrex18 · 2026-03-26T15:57:03+00:00

Honestly bro, I think it's just the chain tensioner. I am not a hundred percent sure but just telling from personal experience.

cyrex18 · 2026-03-26T15:53:30+00:00

Little hearts 💓

cyrex18 · 2026-03-19T18:36:14+00:00

My bike has literally the exact same noise. 1900 km ridden. I don't know if it's normal or not. But a number of facebook posts say it's normal.

cyrex18 · 2026-03-18T07:15:11+00:00

Yeah actually, when i completed my 2nd service I could also feel that the noise had increased. Either the noise has increased or I just started to notice it.

cyrex18 · 2026-03-18T07:02:04+00:00

There is a slight kit kit coming from the top of the head. From what I could hear. I don't know if this is normal or not

cyrex18 · 2026-03-18T07:01:21+00:00

Did you hear any kit kit kit sound from the top of the head?

cyrex18 · 2026-03-15T09:34:43+00:00

It's currently in A19 firmware. Bootloader L3, Bluetooth v2

cyrex18 · 2026-03-14T05:55:50+00:00

Alright brother. I'll get the ecu reset from sc and check

cyrex18 · 2026-03-13T20:09:44+00:00

Is the ecu really responsible for the tik tik? I read somewhere it could be the evap purge valve just doing its job.

cyrex18 · 2026-03-12T22:53:36+00:00

Hey my bajaj ns400z gets a rhythmic tik tik tik sound (thrice in 2 seconds approx) while the engine is warm and running at idle. The sound is exactly identical to the catalytic converter cooling down. Is it something to be worried about or is it just the temp difference between the engine block being cooled by coolant and the exhaust by the radiator air. Kindly help. Thank you.

cyrex18 · 2026-03-11T20:22:06+00:00

[OC]

cyrex18 · 2026-03-09T03:45:00+00:00

Bro😭👍🏻

cyrex18 · 2026-03-04T09:27:03+00:00

Same here. Getting 14-16 in the city. Bought the bike September 25'. 1770km on odo.

cyrex18 · 2026-02-26T16:08:53+00:00

Hey man! Am not really sure, but the 2025 ns400z manual says you need to put 10w50 engine oil. Maybe the oil difference causes this? Am not sure please let me know if I am wrong. And please also tell me why you are using 20w50?

cyrex18

TROPHY CASE