'89 ZXR250 - engine noise slightly changed
This tuesday I went for an open training day at Ruapuna and absolutely caned my beautiful little bike. She ran really well and I thoroughly enjoyed myself.
I might have been a bit hard on her though - I hit the rev limiter on several occasions and hit a rather nasty false neutral shifting down from 5th at the end of the straight travelling 170 km/h.
Now she's been making a new noise since I took her home - she still pulls and runs as she used to, just a new sound.
It's like a whirring kind of sound that is present just around 8k RPM - and more pronounced when pulling than when just reving in neutral. Dunno if it is a combination of change of engine noise and some loose fitting somewhere hitting a resonance (that fitting would have had to have been shaken loose while at the track though).
Had a chat to my mechanic who seems to be a knowledgable chap and also has such a reputation. He said it wasn't anything to worry too much about - but I'm always a bit paranoid about such things.
Hope someone can offer some good insights!
Cheers
Mikkel
Edit: Typo in title - it's a 1989...
It is preferential to refrain from the utilisation of grandiose verbiage in the circumstance that your intellectualisation can be expressed using comparatively simplistic lexicological entities. (...such as the word fuck.)
Remember your humanity, and forget the rest. - Joseph Rotblat
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