I switched to Semi synth only at ~4k kms. The bike became smoother and more refined (very noticeable).
If you want to switch to semi synth wait till 4k or 5k kms. Fully synth oil only after 10k kms.
If i were you i'd escalate. I didn't spend so much money on this bike for shoddy after sales service. But now its your call. Lodge a complaint if you want to

P.S. You might want to take the bike back when the spares are available. No point going there and just getting a check-up done. Its the oil filter thats needs a replacement... not cleaning. Air filter can be cleaned at home itself. Search the DIY threads for this or on you-tube. IIRC, one of the xBHP magazines covered this article in detail.
One more thing, i change the oil every 5k kms and oil filter every 10k kms. More frequent than what the manual suggests and its good to do so since its a high revving bike and the oil would lose its lubricating properties faster. I know people who have changed oil every 3k kms too in their ninja's.




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