Chain noise - SV650.org

ophic · 21-06-14, 08:10 PM

I'm getting a ticking noise from my front sprocket at low speed, and a sort of squeal from the same area at higher speed. The chain and sprockets are fairly new, and has always been kept oiled with a scottoiler. I can't detect any wheel misalignment although I'm not ruling this out. I can reproduce it on a paddock stand. The tick seems to occur with every link.

It's an SV650SK3.

Any ideas chaps? Should I check wheel alignment first?

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muzikill · 22-06-14, 07:09 AM

Chain too tight?

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ophic · 22-06-14, 08:07 AM

Seems OK. Appeared a bit slack when I first heard the noise so I tightened it a bit, as per manual, on side stand. I spose I could!d slacken it off a bit and see if the tick goes away. The two noises I hear at different spends might not be related.

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mkr · 22-06-14, 08:12 AM

If front sprocket has 'nylon' insert, ie not solid steel, it can sometimes ride up on the nylon insert which can cause ticking sound , not sure if that explains the squeal? well known on Bandits.

Solid steel best.

ophic · 22-06-14, 08:20 AM

The sprocket looks entirely normal. Just a star shaped lump of metal.

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mkr · 22-06-14, 08:24 AM

Does it make clicking noise with chain off?

Don't really want to say it, bearing behind sprocket?

Hoping I'm way off now!

Plan B - if its solid steel sprocket, wait for some of the more experience SV guys to wake up this morning and come up with simpler solution!

ophic · 22-06-14, 08:28 AM

Not removed the chain yet. The squeal noise does sound like a bearing. The tick sounds like something to do with the chain.

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ophic · 22-06-14, 01:39 PM

Chain off, no noise at all. Also I can confirm that it's not related to chain tension or wheel alignment as I played around with both and it made no difference. The tick could be just normal chain noise - apparently some chains and sprockets are noisier than others. The squeal could also be just normal noise, perhaps a squeal isn't the best way to describe it. Maybe I've just 'tuned in' to these noises as I've been doing 30mph commutes lately instead of motorways. Also the chain and sprockets are quite new in terms of miles.

If it's anything bad I'm sure it'll get worse before anything catastrophic happens!

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mkr · 22-06-14, 02:32 PM

with chain off I would expect no noise as they would be no tension on the bearing to make it squeal, but if they is no wobble (play) in the bearing with chain off I would leave things as they are, just keep a eye & (ear?) on it so to speak.

ophic · 22-06-14, 03:07 PM

Thanks for advice. What happens if the bearing fails?

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21-06-14, 08:10 PM	#1
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Chain noise I'm getting a ticking noise from my front sprocket at low speed, and a sort of squeal from the same area at higher speed. The chain and sprockets are fairly new, and has always been kept oiled with a scottoiler. I can't detect any wheel misalignment although I'm not ruling this out. I can reproduce it on a paddock stand. The tick seems to occur with every link. It's an SV650SK3. Any ideas chaps? Should I check wheel alignment first? Sent from my Nexus 7 using Tapatalk __________________ Silver SV650SK3, Fuel exhaust

22-06-14, 07:09 AM	#2
muzikill Member Mega Poster Join Date: Jul 2005 Location: Dunfermline Posts: 1,712	Re: Chain noise Chain too tight? Sent from my GT-I9505 using Tapatalk __________________ Learn to maintain your bike, take it apart, rebuild the engine & more (using better bolts ), drop it & fix it again! K3 Job c.v: Engine:remove/split/rebuild/refit. Replace:Gearbox,Fuel pump,Gaskets. Piston clean,rings. Overhaul:Throttle body,Injectors,Brakes,Forks. Remove/refit:Exhaust,Radiator,Oil cooler,Throttle,Air filter,Tank. Replace: Oil,Coolant,grease,brake hoses & bleed.

22-06-14, 08:07 AM	#3
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Re: Chain noise Seems OK. Appeared a bit slack when I first heard the noise so I tightened it a bit, as per manual, on side stand. I spose I could!d slacken it off a bit and see if the tick goes away. The two noises I hear at different spends might not be related. Sent from my Nexus 7 using Tapatalk __________________ Silver SV650SK3, Fuel exhaust

22-06-14, 08:12 AM	#4
mkr Member Join Date: Sep 2013 Location: Lincoln Posts: 31	Re: Chain noise If front sprocket has 'nylon' insert, ie not solid steel, it can sometimes ride up on the nylon insert which can cause ticking sound , not sure if that explains the squeal? well known on Bandits. Solid steel best. Last edited by mkr; 22-06-14 at 08:20 AM.

22-06-14, 08:20 AM	#5
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Re: Chain noise The sprocket looks entirely normal. Just a star shaped lump of metal. Sent from my Nexus 7 using Tapatalk __________________ Silver SV650SK3, Fuel exhaust

22-06-14, 08:24 AM	#6
mkr Member Join Date: Sep 2013 Location: Lincoln Posts: 31	Re: Chain noise Does it make clicking noise with chain off? Don't really want to say it, bearing behind sprocket? Hoping I'm way off now! Plan B - if its solid steel sprocket, wait for some of the more experience SV guys to wake up this morning and come up with simpler solution! Last edited by mkr; 22-06-14 at 08:32 AM.

22-06-14, 08:28 AM	#7
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Re: Chain noise Not removed the chain yet. The squeal noise does sound like a bearing. The tick sounds like something to do with the chain. Sent from my Nexus 7 using Tapatalk __________________ Silver SV650SK3, Fuel exhaust

22-06-14, 01:39 PM	#8
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Re: Chain noise Chain off, no noise at all. Also I can confirm that it's not related to chain tension or wheel alignment as I played around with both and it made no difference. The tick could be just normal chain noise - apparently some chains and sprockets are noisier than others. The squeal could also be just normal noise, perhaps a squeal isn't the best way to describe it. Maybe I've just 'tuned in' to these noises as I've been doing 30mph commutes lately instead of motorways. Also the chain and sprockets are quite new in terms of miles. If it's anything bad I'm sure it'll get worse before anything catastrophic happens! Sent from my Nexus 7 using Tapatalk __________________ Silver SV650SK3, Fuel exhaust

22-06-14, 02:32 PM	#9
mkr Member Join Date: Sep 2013 Location: Lincoln Posts: 31	Re: Chain noise with chain off I would expect no noise as they would be no tension on the bearing to make it squeal, but if they is no wobble (play) in the bearing with chain off I would leave things as they are, just keep a eye & (ear?) on it so to speak.

22-06-14, 03:07 PM	#10
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Re: Chain noise Thanks for advice. What happens if the bearing fails? Sent from my Nexus 7 using Tapatalk __________________ Silver SV650SK3, Fuel exhaust

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