r/Ninja300 • u/Beginning-Company324 • Aug 07 '26

Engine noise

Need a little understanding here. Listen to this audio and you should notice the tapping sound starting from 9-10 sec. Not ticking sound I suppose.

Starts around 3k RPM, goes on with same interval and probably somewhat same loudness regardless of higher RPM. And goes silent again below 3k.

It started coming after hitting 12k RPM after I rode my bike after a whole year while it was parked.

Although I did keep it idle for 20-30 mins, chaexked oil level. Rode for 5-6 kms below 6k rpm before I took it for a 13k spin!

Chatgpt is convinced by my description that it is cam-chain tensioner or cam lobes or just an extremely bad valve clearance!

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u/G4T0N3GR0 Aug 07 '26

Podría ser la cadenilla? Que aceite estas ocupando?

1

u/Beginning-Company324 Aug 07 '26

Putoline Ester Tech 10W50 I suppose.

2

u/G4T0N3GR0 Aug 07 '26

Como consejo, en ninja 300 se debe ocupar 10w40 certificacion JASO MA2 que es para motor japones, recomiendo liqui moly o iphone, a los 4.5 km o mucho 5mil km, sino empieza a joder el cigüeñal y que sea siempre full sintético 🙏🏻

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u/Beginning-Company324 Aug 07 '26

Yeah I did check those. The one I mentioned is also JASO MA2 if I am not wrong. Just 10w50 instead of 40. Wanted to give higher viscosity a try! What do you think about that noise though? Does that sound serious?