Please help identify this noise. - SV650.org

steveg · 16-12-09, 06:49 PM

Hi all

noticed today a strange noise coming from bike when riding ( loud enough to be worrying)

no noise at idle
when riding approx 4-4.5k a kind of popping noise which turn into a fairly loud whinning noise
clutch in sound still there
under 4k no noise
No clutch slip / bike running fine

Bike done 45k miles
only thing I know is front sprocket is fairly worn (20k)

Any ideas as I am worried (BTW has got oil in check often !)

Cheers Steve

16-12-09, 07:07 PM

Stange one, does it still make the noise with the clutch in and a closed throttle?
I think a good place to start (assuming it's runnibg gear) would be a good visual inspection and if possible get it on the paddock stand and turn the back wheel by hand (listening for any abnormal noises etc).
The noise might well be there all the time, and just gets loud enough to hear when you get to a certain speed.

16-12-09, 07:15 PM

check to see if its speed or engine revving related?

steveg · 16-12-09, 09:46 PM

Problem is speed related , also when clutch is pulled in noise is still there , therefore I think its the front wheel bearings

Will pop to my local garage to get up on stands , hoping its just front wheel bearings

I guess @ 45 k they could need replacing

Cheers Steve

fizzwheel · 16-12-09, 10:03 PM

I had my SV do something similar, a squeak / chirp that turned into a whine / squeal as the speed built up.

This was also coupled by the fact my speedo started reading irratically.

Eventually the squealling stopped, as did the readings on my speedo.

I'm wandering if you have a similar problem or are about to experience one...

16-12-09, 11:37 PM

As I said get it up on the stands and spin the wheels over, without the engine noise you might find something either chain and sprocket or wheel bearing, breaks etc manifests itself.

ixlr8 · 17-12-09, 12:01 AM

Badly-worn chain and/or sprockets can do this as well. (Add to list of possibles).

17-12-09, 12:05 AM

chain may need adjusting as it may be so slack its flapping about.

17-12-09, 01:11 AM

^ +1

steveg · 17-12-09, 08:03 AM

Thanks for all the replies , as have no stands will get bike to local garage to give it a check over

Cheers Steve

16-12-09, 06:49 PM	#1
steveg Member Join Date: Jan 2006 Location: The Midlands Posts: 892	Please help identify this noise. Hi all noticed today a strange noise coming from bike when riding ( loud enough to be worrying) no noise at idle when riding approx 4-4.5k a kind of popping noise which turn into a fairly loud whinning noise clutch in sound still there under 4k no noise No clutch slip / bike running fine Bike done 45k miles only thing I know is front sprocket is fairly worn (20k) Any ideas as I am worried (BTW has got oil in check often !) Cheers Steve __________________ ex - red sv650s 06 reg Now Triumph sprint 1050 ABS 05 Reg AKA Papa Smurf Last edited by steveg; 16-12-09 at 06:51 PM.

16-12-09, 07:07 PM	#2
shifter Guest Posts: n/a	Re: your help is needed Stange one, does it still make the noise with the clutch in and a closed throttle? I think a good place to start (assuming it's runnibg gear) would be a good visual inspection and if possible get it on the paddock stand and turn the back wheel by hand (listening for any abnormal noises etc). The noise might well be there all the time, and just gets loud enough to hear when you get to a certain speed.

16-12-09, 07:15 PM	#3
sunshine Guest Posts: n/a	Re: your help is needed check to see if its speed or engine revving related?

16-12-09, 09:46 PM	#4
steveg Member Join Date: Jan 2006 Location: The Midlands Posts: 892	Re: your help is needed Problem is speed related , also when clutch is pulled in noise is still there , therefore I think its the front wheel bearings Will pop to my local garage to get up on stands , hoping its just front wheel bearings I guess @ 45 k they could need replacing Cheers Steve __________________ ex - red sv650s 06 reg Now Triumph sprint 1050 ABS 05 Reg AKA Papa Smurf

16-12-09, 10:03 PM	#5
fizzwheel Super Moderator Mega Poster Join Date: Dec 2003 Location: Somerset Posts: 3,614	Re: your help is needed I had my SV do something similar, a squeak / chirp that turned into a whine / squeal as the speed built up. This was also coupled by the fact my speedo started reading irratically. Eventually the squealling stopped, as did the readings on my speedo. I'm wandering if you have a similar problem or are about to experience one... __________________ Look Dave, I can see you're really upset about this. I honestly think you ought to sit down calmly, take a stress pill, and think things over. K5 GSXR 750 Anniversary Edition

16-12-09, 11:37 PM	#6
shifter Guest Posts: n/a	Re: your help is needed As I said get it up on the stands and spin the wheels over, without the engine noise you might find something either chain and sprocket or wheel bearing, breaks etc manifests itself.

17-12-09, 12:01 AM	#7
ixlr8 Member Join Date: Jul 2003 Location: Melbourne, Australia Posts: 117	Re: your help is needed Badly-worn chain and/or sprockets can do this as well. (Add to list of possibles).

17-12-09, 12:05 AM	#8
monkimagic Guest Posts: n/a	Re: your help is needed chain may need adjusting as it may be so slack its flapping about.

17-12-09, 01:11 AM	#9
barwel1992 Guest Posts: n/a	Re: your help is needed ^ +1

17-12-09, 08:03 AM	#10
steveg Member Join Date: Jan 2006 Location: The Midlands Posts: 892	Re: your help is needed Thanks for all the replies , as have no stands will get bike to local garage to give it a check over Cheers Steve __________________ ex - red sv650s 06 reg Now Triumph sprint 1050 ABS 05 Reg AKA Papa Smurf

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Identify this wheel?	Elltg	Bikes - Talk & Issues	26	16-12-09 12:41 PM
Can you help me identify this mirror?	Dappa D	Bikes - Talk & Issues	8	20-01-09 11:11 AM
identify yourself ?	rictus01	Soho Massive	30	01-07-08 07:35 PM
Screeching noise? what noise does your SV make?	branny	SV Talk, Tuning & Tweaking	5	30-06-06 12:09 PM
Please help identify this bike.	daavikes	SV Talk, Tuning & Tweaking	6	30-08-05 09:03 PM