Backfiring - SV650.org

26-09-08, 11:08 PM

Hi All,

I came across a few more questions for all you SV owners:

1) I recently purchased a 2003 SV650S with 8,500 miles. It has an aftermarket ART Exhaust and sounds great. Occasionally, when I let off the throttle I hear a backfire or two. I used to own a GSXR (no backfiring) so I am not sure if this is normal for these types of bikes.

2) During startup I can hear a ticking noise from the front. I have heard of GSXR's that do this due to the chain tensioner and it is supposedly normal. Is this also the case with the SV's? I only hear it while it is cold and warming up...once the bike reaches operating temp the noise is no longer audible.

Thanks!

fastdruid · 27-09-08, 12:34 AM

If there is an air leak at the front of the can it will backfire.

Druid

yorkie_chris · 27-09-08, 02:01 AM

If it shuts up when warm there's not a problem from camchain tensioner.

Backfire is normal, K3> has airleak fitted as standard on overrun as emissions measure. Adds weight and backfire. Is not harmful.

26-09-08, 11:08 PM	#1
crzylanesplit Guest Posts: n/a	Backfiring Hi All, I came across a few more questions for all you SV owners: 1) I recently purchased a 2003 SV650S with 8,500 miles. It has an aftermarket ART Exhaust and sounds great. Occasionally, when I let off the throttle I hear a backfire or two. I used to own a GSXR (no backfiring) so I am not sure if this is normal for these types of bikes. 2) During startup I can hear a ticking noise from the front. I have heard of GSXR's that do this due to the chain tensioner and it is supposedly normal. Is this also the case with the SV's? I only hear it while it is cold and warming up...once the bike reaches operating temp the noise is no longer audible. Thanks!

27-09-08, 12:34 AM	#2
fastdruid Member Mega Poster Join Date: Jul 2003 Location: W Mids Posts: 2,037	Re: Backfiring If there is an air leak at the front of the can it will backfire. Druid __________________ '00 SV700S - '94 RVF400R - '97 RVF400R - '88 VFR750F

27-09-08, 02:01 AM	#3
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: Backfiring If it shuts up when warm there's not a problem from camchain tensioner. Backfire is normal, K3> has airleak fitted as standard on overrun as emissions measure. Adds weight and backfire. Is not harmful. __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

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