Noisy K3 - SV650.org

lukemillar · 25-09-06, 09:00 AM

Okay, I'm going to have to admit defeat here. My K3 (8500 miles) seems to have got very noisy recently - Most notably a tapping from the top of the front cyclinder from the rocker cover. It only seems to happen once the engine has warmed up to 'normal' operating temperature for a while. The bike is running fine, I'm just a liitle worried that it could develop. I have recently done a lot of service bits and pieces - some because they were due, others because of this rattle. These are:

New oil + filter.
Throttle Bodies sync.
Cleaned, re-lubed and adjusted sprockets and chain.
Rebuilt cam chain tensioners. <---Before you all shout!
Checked valve clearances (all good, though they were at the bottom end of tolerance).

I have had a search - one person replaced their cam chains as they had been stretched (and that was a K4), but I can't see it stretching that much that the tensioner can't pick up the slack. Other than that I'm fresh out of ideas other than living with it. Someone also mentioned that K3's are noisier than other pointies, though I can't see the logic behind that.

So - does anyone have other ideas on what it might be? Or is it really just one of those things that you have to live with? Main reason for asking is that I'm wondering whether to take it to a garage and let a more experienced ear have a listen - but don't want to get into the thing where they are charging me for labour to take things apart to try and diagnose the problem, and then charge me more labour and parts to fix it!

25-09-06, 11:32 AM

when an engine runns in they do get quite alot louder, remember you are sitting on top of it and you will hear every noise, stick some ear plugs in its cheaper.

lukemillar · 25-09-06, 06:37 PM

You know what Kwak, your right! Riding home tonight - The bike was absolutely spot on! Sounded and felt smooth, speed and rpm in each gear matched what I expect (It was revving a little too much for a while for a given speed). Stopped at the lights and there is the tapping/rattle.

Sod it - i'll live with it!

25-09-06, 07:09 PM

mine has done 6.5k and ive noticed the same rattling noises.

25-09-06, 07:47 PM

my k5 makes a daft ticking noise when warm only noticable when you tilt your head a little.

the green foam ear plugs sorted that out

25-09-06, 09:00 AM	#1
lukemillar Member Mega Poster Join Date: Feb 2006 Location: Wellington, New Zealand Posts: 2,460	Noisy K3 Okay, I'm going to have to admit defeat here. My K3 (8500 miles) seems to have got very noisy recently - Most notably a tapping from the top of the front cyclinder from the rocker cover. It only seems to happen once the engine has warmed up to 'normal' operating temperature for a while. The bike is running fine, I'm just a liitle worried that it could develop. I have recently done a lot of service bits and pieces - some because they were due, others because of this rattle. These are: New oil + filter. Throttle Bodies sync. Cleaned, re-lubed and adjusted sprockets and chain. Rebuilt cam chain tensioners. <---Before you all shout! Checked valve clearances (all good, though they were at the bottom end of tolerance). I have had a search - one person replaced their cam chains as they had been stretched (and that was a K4), but I can't see it stretching that much that the tensioner can't pick up the slack. Other than that I'm fresh out of ideas other than living with it. Someone also mentioned that K3's are noisier than other pointies, though I can't see the logic behind that. So - does anyone have other ideas on what it might be? Or is it really just one of those things that you have to live with? Main reason for asking is that I'm wondering whether to take it to a garage and let a more experienced ear have a listen - but don't want to get into the thing where they are charging me for labour to take things apart to try and diagnose the problem, and then charge me more labour and parts to fix it! __________________ #24 - Honda VFR400R NC30

25-09-06, 06:37 PM	#3
lukemillar Member Mega Poster Join Date: Feb 2006 Location: Wellington, New Zealand Posts: 2,460	You know what Kwak, your right! Riding home tonight - The bike was absolutely spot on! Sounded and felt smooth, speed and rpm in each gear matched what I expect (It was revving a little too much for a while for a given speed). Stopped at the lights and there is the tapping/rattle. Sod it - i'll live with it! __________________ #24 - Honda VFR400R NC30

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25-09-06, 11:32 AM	#2
kwak zzr Guest Posts: n/a	when an engine runns in they do get quite alot louder, remember you are sitting on top of it and you will hear every noise, stick some ear plugs in its cheaper.

25-09-06, 07:09 PM	#4
kwak zzr Guest Posts: n/a	mine has done 6.5k and ive noticed the same rattling noises.

25-09-06, 07:47 PM	#5
Apophes Guest Posts: n/a	my k5 makes a daft ticking noise when warm only noticable when you tilt your head a little. the green foam ear plugs sorted that out