Throttle pick-up jerky - SV650.org

Blapper · 27-08-16, 10:15 AM

Hi Guys,

I am a sympathetic rider and always feed the power back in gently after closing the throttle (if you want me to do wheelies etc., you will wait a looong time). My problem is that my 2001 curvy can be very abrupt when I open the throttle. It almost feels like the throttle has too fast an action to be smooth and that the throttle butterflies are stuck shut - more than I have experienced before due to suction. I am fitting a comfort kit and expect the lack of weight on my hands to make it easier to do fine control.

Do you guys think this is normal and something I just have to get used to or is it something that can be tweaked out somehow. I feel the carbs are well synchronised and the bike is not running badly, so whaddyareckon?

27-08-16, 10:18 AM

Hi Blapper. I've just bought a 2000 model and strangely enough I find the throttle response a little jerky too. I thought it was just me, I'm not a fast rider either. Maybe it's just a trait of the bike?

I'm sure someone with more knowledge may know more....

Sent from my SM-N9005 using Tapatalk

Blapper · 27-08-16, 12:15 PM

Cheers Paul, that's two for two.

garynortheast · 27-08-16, 02:21 PM

I sorted the problem on my curvy by oiling the throttle cables and linkages.

DJ123 · 27-08-16, 02:25 PM

Are your throttle bodies balanced?

maviczap · 27-08-16, 03:56 PM

Quote:

Originally Posted by daddyjob

Are your throttle bodies balanced?

Its a curvy DDJ

27-08-16, 04:12 PM

My throttle opens and closes pretty smoothly but never had any trouble with it being so snatchy, sometimes when im in 2nd or 3rd and shut the throttle and let the revs go down its a bitch snatchy if i dont change gear and use the clutch to pull away again, can notice it more on cornering i think?

Suzuki SV650s 2000 curvy

Blapper · 27-08-16, 05:12 PM

It's a 9500 mile bike, everything I have looked at so far seems tidy and well maintained. Riding it on tiny throttle openings would tell me if the carbs were out of sync, but it seems to be nicely on two cylinders even on the tiniest throttle opening.

sl0th86: That sounds similar-ish, so I'll call that three for three...

sputnik · 27-08-16, 09:13 PM

If you are quite sure that everything that needs to be balanced is balanced I'd suggest TPS adjustment might help. Find the thread titled Default TPS Adjustment Step-by-Step Pictorial Guide and give it a go. Results can be revalatory!

maviczap · 28-08-16, 07:04 AM

Its a curvy! It has carbs, not fuel injection, so suggesting TPS settings is irrelevant

27-08-16, 10:15 AM	#1
Blapper Member Join Date: Jun 2016 Location: Rochester,Kent. Posts: 824	Throttle pick-up jerky Hi Guys, I am a sympathetic rider and always feed the power back in gently after closing the throttle (if you want me to do wheelies etc., you will wait a looong time). My problem is that my 2001 curvy can be very abrupt when I open the throttle. It almost feels like the throttle has too fast an action to be smooth and that the throttle butterflies are stuck shut - more than I have experienced before due to suction. I am fitting a comfort kit and expect the lack of weight on my hands to make it easier to do fine control. Do you guys think this is normal and something I just have to get used to or is it something that can be tweaked out somehow. I feel the carbs are well synchronised and the bike is not running badly, so whaddyareckon?

27-08-16, 10:18 AM	#2
paulk91 Guest Posts: n/a	Re: Throttle pick-up jerky Hi Blapper. I've just bought a 2000 model and strangely enough I find the throttle response a little jerky too. I thought it was just me, I'm not a fast rider either. Maybe it's just a trait of the bike? I'm sure someone with more knowledge may know more.... Sent from my SM-N9005 using Tapatalk

27-08-16, 12:15 PM	#3
Blapper Member Join Date: Jun 2016 Location: Rochester,Kent. Posts: 824	Re: Throttle pick-up jerky Cheers Paul, that's two for two.

27-08-16, 02:21 PM	#4
garynortheast Member Mega Poster Join Date: Mar 2010 Location: Mid Wales Posts: 2,488	Re: Throttle pick-up jerky I sorted the problem on my curvy by oiling the throttle cables and linkages.

27-08-16, 02:25 PM	#5
DJ123 Member Mega Poster Join Date: Jul 2011 Location: Somewhere over there Posts: 3,245	Re: Throttle pick-up jerky Are your throttle bodies balanced? __________________ BMW F800ST

27-08-16, 04:12 PM	#7
sl0th86 Guest Posts: n/a	Re: Throttle pick-up jerky My throttle opens and closes pretty smoothly but never had any trouble with it being so snatchy, sometimes when im in 2nd or 3rd and shut the throttle and let the revs go down its a bitch snatchy if i dont change gear and use the clutch to pull away again, can notice it more on cornering i think? Suzuki SV650s 2000 curvy

27-08-16, 05:12 PM	#8
Blapper Member Join Date: Jun 2016 Location: Rochester,Kent. Posts: 824	Re: Throttle pick-up jerky It's a 9500 mile bike, everything I have looked at so far seems tidy and well maintained. Riding it on tiny throttle openings would tell me if the carbs were out of sync, but it seems to be nicely on two cylinders even on the tiniest throttle opening. sl0th86: That sounds similar-ish, so I'll call that three for three...

27-08-16, 09:13 PM	#9
sputnik Member Join Date: Jun 2011 Location: Sunny Falkirk Posts: 441	Re: Throttle pick-up jerky If you are quite sure that everything that needs to be balanced is balanced I'd suggest TPS adjustment might help. Find the thread titled Default TPS Adjustment Step-by-Step Pictorial Guide and give it a go. Results can be revalatory! __________________ . It's like, how much more black could this be? And the answer is none. None more black.

28-08-16, 07:04 AM	#10
maviczap Member Mega Poster Join Date: Mar 2007 Posts: 9,096	Re: Throttle pick-up jerky Its a curvy! It has carbs, not fuel injection, so suggesting TPS settings is irrelevant __________________ We're riding out tonight to case the promised land Make everyday count RIP Reeder - Jolly Green Giant and comedy genius

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