Noise coming from exhaust (stuttering) - SV650.org

20-06-08, 08:38 AM

Hi All,

I need some help please...

When a started my bike (SV650s '99) this morning there was a funny popping sound coming from the exhaust. It sounded like it was backfiring but it was not very loud but pretty frequent. There was a lack of power and it felt like it was struggling with fuel circulation (for lack of a better phrase).

Any ideas?

Thanks in advance,
Ian

20-06-08, 08:52 AM

Water in the spark plug?

20-06-08, 09:03 AM

or water in the fuel

20-06-08, 10:11 AM

How long since you last used it, was it raining last time you were out?

Maybe a bad dose of fuel, remember, places were running low lately on everything, maybe you got the last cacky bit at a station...

First port of call would be the spark plug, make sure there is no water around there.

Is it a stuttering through revs when you say lack of power?

20-06-08, 12:08 PM

Sounds like it is running on one cylinder every now and again, check the spark plugs for starters!

20-06-08, 12:10 PM

Mine does this when I start it. Goes away once everything gets upto temperature. I just thought it was because she was cold? :S

20-06-08, 12:14 PM

Quote:

Originally Posted by chasey

Mine does this when I start it.

With or without choke, and does it stop when the choke is disengaged?

20-06-08, 12:20 PM

Quote:

Originally Posted by Dangerous Dave

With or without choke, and does it stop when the choke is disengaged?

Only when I give it some choke. Just over-fueling or something?

20-06-08, 05:20 PM

Quote:

Originally Posted by chasey

Only when I give it some choke. Just over-fueling or something?

Lube your choke cable and have a look at the choke/carb system.

20-06-08, 08:05 PM

Carbs mine did until i got them balnaced to the exhuast

20-06-08, 08:38 AM	#1
ihitge Guest Posts: n/a	Noise coming from exhaust (stuttering) Hi All, I need some help please... When a started my bike (SV650s '99) this morning there was a funny popping sound coming from the exhaust. It sounded like it was backfiring but it was not very loud but pretty frequent. There was a lack of power and it felt like it was struggling with fuel circulation (for lack of a better phrase). Any ideas? Thanks in advance, Ian

20-06-08, 08:52 AM	#2
ThEGr33k Guest Posts: n/a	Re: Noise coming from exhaust (stuttering) Water in the spark plug? Last edited by ThEGr33k; 20-06-08 at 09:07 AM.

20-06-08, 09:03 AM	#3
Peetee650 Guest Posts: n/a	Re: Noise coming from exhaust (stuttering) or water in the fuel

20-06-08, 10:11 AM	#4
plowsie Guest Posts: n/a	Re: Noise coming from exhaust (stuttering) How long since you last used it, was it raining last time you were out? Maybe a bad dose of fuel, remember, places were running low lately on everything, maybe you got the last cacky bit at a station... First port of call would be the spark plug, make sure there is no water around there. Is it a stuttering through revs when you say lack of power?

20-06-08, 12:08 PM	#5
Dangerous Dave Guest Posts: n/a	Re: Noise coming from exhaust (stuttering) Sounds like it is running on one cylinder every now and again, check the spark plugs for starters!

20-06-08, 12:10 PM	#6
chasey Guest Posts: n/a	Re: Noise coming from exhaust (stuttering) Mine does this when I start it. Goes away once everything gets upto temperature. I just thought it was because she was cold? :S

20-06-08, 08:05 PM	#10
sv_rider1990 Guest Posts: n/a	Re: Noise coming from exhaust (stuttering) Carbs mine did until i got them balnaced to the exhuast

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