Disabling the ignition retard mechanism? Curvy - SV650.org

Bunkle · 06-09-14, 05:47 PM

Before I try this on my curvy has anyone else done this amazingly simple mod?
Did you notice any difference in 2nd and 3rd?

http://www.sv650.org/ig_retard/ignition_mod.htm

Cheers,
Dave

Sid Squid · 06-09-14, 05:55 PM

Just about every Curvy I've seen, yes.
Does it make a difference? Yes, a bit - don't expect much.
It is in there to fiddle the bike around the, then, EU standard noise test, retarding the ignition a dab just clips the power a teeny bit and thus the noise output.
You won't be adding anything as such, just not taking it away.

07-09-14, 08:47 AM

It's a free mod. Free is good

Citizen · 07-09-14, 11:22 AM

I have been meaning to do it for ages and spurred by this I have just finished, piece of **** to do.

Will take it for a ride in a bit to see what, if any, improvement it has achieved.

Edit: Been for a blast and no real noticeable difference, the bike is full of power anyways (dropped a tooth on the front for extra grunt) so its hard to tell, seemed a bit louder maybe??

However its a free mod and easy to do, as it took 5 minutes then it has got to be worth doing, as said free is good.

07-09-14, 07:41 PM

Did you notice much difference when you changed to smaller sprocket?

Sent from my GT-I8160 using Tapatalk 2

Bibio · 08-09-14, 02:40 PM

dont go down on the front go up on the rear. taking teeth from the front sprocket wears the chain quicker and eats the swingarm chain guide.

Citizen · 08-09-14, 05:54 PM

I went down one on the front and I`m happy with it, there is a noticeable difference in acceleration, saying that the removed sprocket was worn smaller than the 14 tooth!!

Didn't think about going up on the rear, makes sense though.

08-09-14, 06:10 PM

Quote:

Originally Posted by Bibio

dont go down on the front go up on the rear. taking teeth from the front sprocket wears the chain quicker and eats the swingarm chain guide.

By how many? Cheers :thumbup:

Sent from my GT-I8160 using Tapatalk 2

Bibio · 08-09-14, 06:28 PM

for every 1 down on the front you are roughly 2-3 up on the rear. yes it's easier to go down on the front as you can keep the same chain but as i said it will eat the chain quicker and wear the chain guide.

johnnyrod · 08-09-14, 07:36 PM

The only thing I noticed after the TRE was disabled was that in 2nd and 3rd at really low revs (3k or maybe even less) it used to chug as you fed the throttle on, but that went away after the mod. Like if you're rolling up to a junction in 2nd and need a long look before you go, that sort of thing. Waste of time really, but easy and free. Better VFM than a Nikko G Pack!

06-09-14, 05:47 PM	#1
Bunkle Member Join Date: Aug 2012 Location: Linslade, Beds Posts: 405	Disabling the ignition retard mechanism? Curvy Before I try this on my curvy has anyone else done this amazingly simple mod? Did you notice any difference in 2nd and 3rd? http://www.sv650.org/ig_retard/ignition_mod.htm Cheers, Dave

06-09-14, 05:55 PM	#2
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Disabling the Ignition Retard Mechanism Just about every Curvy I've seen, yes. Does it make a difference? Yes, a bit - don't expect much. It is in there to fiddle the bike around the, then, EU standard noise test, retarding the ignition a dab just clips the power a teeny bit and thus the noise output. You won't be adding anything as such, just not taking it away. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

07-09-14, 08:47 AM	#3
Pricey12 Guest Posts: n/a	Re: Disabling the ignition retard mechanism? Curvy It's a free mod. Free is good

07-09-14, 11:22 AM	#4
Citizen Member Join Date: Sep 2013 Location: Epsom Surrey Posts: 115	Re: Disabling the ignition retard mechanism? Curvy I have been meaning to do it for ages and spurred by this I have just finished, piece of **** to do. Will take it for a ride in a bit to see what, if any, improvement it has achieved. Edit: Been for a blast and no real noticeable difference, the bike is full of power anyways (dropped a tooth on the front for extra grunt) so its hard to tell, seemed a bit louder maybe?? However its a free mod and easy to do, as it took 5 minutes then it has got to be worth doing, as said free is good. Last edited by Citizen; 07-09-14 at 01:08 PM.

07-09-14, 07:41 PM	#5
dannywride Guest Posts: n/a	Re: Disabling the ignition retard mechanism? Curvy Did you notice much difference when you changed to smaller sprocket? Sent from my GT-I8160 using Tapatalk 2

08-09-14, 02:40 PM	#6
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,540	Re: Disabling the ignition retard mechanism? Curvy dont go down on the front go up on the rear. taking teeth from the front sprocket wears the chain quicker and eats the swingarm chain guide.

08-09-14, 05:54 PM	#7
Citizen Member Join Date: Sep 2013 Location: Epsom Surrey Posts: 115	Re: Disabling the ignition retard mechanism? Curvy I went down one on the front and I`m happy with it, there is a noticeable difference in acceleration, saying that the removed sprocket was worn smaller than the 14 tooth!! Didn't think about going up on the rear, makes sense though.

08-09-14, 06:28 PM	#9
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,540	Re: Disabling the ignition retard mechanism? Curvy for every 1 down on the front you are roughly 2-3 up on the rear. yes it's easier to go down on the front as you can keep the same chain but as i said it will eat the chain quicker and wear the chain guide.

08-09-14, 07:36 PM	#10
johnnyrod Member Mega Poster Join Date: Jul 2003 Location: Doncaster, oop norf Posts: 2,122	Re: Disabling the ignition retard mechanism? Curvy The only thing I noticed after the TRE was disabled was that in 2nd and 3rd at really low revs (3k or maybe even less) it used to chug as you fed the throttle on, but that went away after the mod. Like if you're rolling up to a junction in 2nd and need a long look before you go, that sort of thing. Waste of time really, but easy and free. Better VFM than a Nikko G Pack!

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