Rattle/knocking

karl1963 · Two Stroke Sniffer Joined: 22 Aug 2014 Karma :

Hi please can anyone advise, Just took my 1998 900 diversion out for a short run and noticed on tick over there's a slight rattle/ knocking coming from the engine. It's done 68000 and apart from that the engine is very smooth and quite, is this anything to worry about as I'm not really used to 4 strokes.Cheers.

davethekwak · Nitrous Nuisance Joined: 25 Jan 2017 Karma :

Where abouts in the engine does the knocking seem to be coming from?
Top, middle or bottom?
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ZX6R G2 (1999) & ZX6R F2 (1996). I like ZX6!

jaffa90 · World Chat Champion Joined: 06 Apr 2016 Karma :

Is it quieter after pulling the clutch in?

skatefreak · World Chat Champion Joined: 06 Feb 2010 Karma :

How does the knock present under acceleration/deceleration?
Could be Cam Chain Tensioner?

karl1963 · Two Stroke Sniffer Joined: 22 Aug 2014 Karma :

Thanks for the replies, the noise seems to be coming from the middle to top I would say. I'll try the clutch tomorrow. I

spottedtango · Trackday Trickster Joined: 04 Dec 2015 Karma :

When was the carburetors last balanced?

karl1963 · Two Stroke Sniffer Joined: 22 Aug 2014 Karma :

I got the bike in June last year and it has had a full service in February so I would have thought the carbs were done then. The carbs seem ok as it starts runs and ticks over really well. It's just the knocking sound. I don't know if it was just me but it seemed less loud when I put the bike away

jjdugen · World Chat Champion Joined: 03 Jun 2011 Karma :

You have a bit of crank shaft end float. Divi's seem to show it more than most. Ride on into the sunset, it'll probably go round the clock, twice. Belting bikes.
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The CBR900RR has been sold. Aprilia Falco worms its way into my heart.
Try Soi 23 on Amazon for a good read.... Self promotion? Moi?

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

jjdugen · World Chat Champion Joined: 03 Jun 2011 Karma :

Had a few Divis through my hands, including my brothers, five of them.
One made exactly this kind of noise. Once they got above 40 - 50,000 miles they all had a touch of this rattle.
I should have added, does it do it on the sidestand? If so, its as definite as I can be without physically seeing/hearing it.
____________________
The CBR900RR has been sold. Aprilia Falco worms its way into my heart.
Try Soi 23 on Amazon for a good read.... Self promotion? Moi?

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

jjdugen · World Chat Champion Joined: 03 Jun 2011 Karma :

If the rattle is more pronounced on the sidestand, I'll put money on it.
How many Divis have you had....?
____________________
The CBR900RR has been sold. Aprilia Falco worms its way into my heart.
Try Soi 23 on Amazon for a good read.... Self promotion? Moi?