FZS 600 Rattling at tickover

[snikks]

Hi All,

My FZS600 '99 has developed a rattling noise at tickover recently. It's always been a little touchy with cold starts, particularly if we've had heavy rain, but never been rattly like this.

The sound seems to be coming from the top of the engine, near where the Carbs are. You can hear it in this video (can't see anything as it was recorded in the dark): https://www.youtube.com/watch?v=gMO4OkonUz0

Any ideas on what might be wrong, and how to fix it? I've investigated the process for changing the cam-chain, in case it's that, in the haynes manual and it seems to suggest basically stripping the whole engine apart to get at it, which I'd rather avoid, for obvious reasons.
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- CBT: 02/01/11 Theory: 26/04/11 Mod 1: 19/05/11 Mod 2: 19/08/11
- 2007 Honda XL125V Varadero (Sold), 1999 Yamaha FZS600 Fazer (Sold), 2001 CBR600F

[Paddy Blake]

I can't say if it's the cam-chain but I changed a cam-chain on a CB 500 by just splitting the chain and tying the new one to the old one to get it into place.

Easy and never had a bother with it.

[N cee thirty]

all old fazers have a cam chain rattle, more noticeable on very cold mornings.
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[janner_10]

As Rob said, they all do that. Normally a hearty blast sorted mine for a bit.

That said it started around the 15k miles mark and carried on with no problems until written off @ 38k

Usually around the £100 mark to sort if it bothers you that much though.
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Yamaha FZS600 (Now gone to heaven) > CBR600F4i (SOLD) > '99 YZF-R1

[snikks]

Well, just started recently so it should live for a while yet. It's at about 38k already and as I said, the rattlyness has only just started recently.

I will get it sorted but if it's not something that requires urgency I will probably leave it until cash is a bit less tight.
____________________
- CBT: 02/01/11 Theory: 26/04/11 Mod 1: 19/05/11 Mod 2: 19/08/11
- 2007 Honda XL125V Varadero (Sold), 1999 Yamaha FZS600 Fazer (Sold), 2001 CBR600F

[N cee thirty]

mine rattled at 25k when i got it, and still does it at 33k now, no change in performance.
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[andys675]

mine rattled from 3000 miles to when i got rid with 14000 on it, changed the oil once and gave it merry death everywhere everyday and it never got any slower, it was ok cold but worse when hot
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Some people feel the rain, others just get wet.

[RhynoCZ]

I think it's the chain, my GPz sounded much worse, like if you put rocks into a blender Check this: https://s970.beta.photobucket.com/user/RhynoCZ/media/New%20exhaust%20system/Video-0001.mp4.html?sort=3&o=0 The engine was warm, after a ride.

It also could be valves, when was the last time you've checked clearances?
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[MattJ]

Sounds like my FZR when it's cold. Did it at 21k when I got it, now at 27k and it's the same. It's something I should sort really but it's not serious yet so I'm not going to bother.