Slow (auto) choke. - SV650.org

11-03-10, 07:46 PM

Recently switched from a pointy SVS, to an ER6 .... but would appreciate some general help if poss...

The auto choke on my bike seems really slow to react .. when I start the bike, unless I blip (or hold) the revs manually for a little while it'll stall (ie. auto-choke not kicking on) .... an then when the auto-choke does kick on, it seems to be on for too long, and only turns off if I blip the throttle .... ie. if i leave the bike idling, the auto choke won't take the revs down until I blip it ....

How does the auto choke work ... what can I do to improve it ??

I've got some new spark plugs (iridiums) to fit, to see if it helps ... but whatelse can it be ??

Ta !!

TSM · 11-03-10, 08:43 PM

stuck throttle actuator, tb prolly needs balancing, how old is bike?

11-03-10, 08:48 PM

2006 with 4500 miles on it ....

Sid Squid · 11-03-10, 10:16 PM

There's no 'choke' as such, having fuel injection it works rather differently.

TSM · 11-03-10, 10:35 PM

Quote:

Originally Posted by Sid Squid

There's no 'choke' as such, having fuel injection it works rather differently.

I though its just an electricly actuated opening of the throttle bodies, but there being an aditional actuator to open the primary butterfly that is normaly controled by the throttle, that and also diffrent fueling.

11-03-10, 10:35 PM

Quote:

Originally Posted by Sid Squid

There's no 'choke' as such, having fuel injection it works rather differently.

Urm ... suppose ... what's your diagnosis, Sid ??

Sid Squid · 11-03-10, 11:00 PM

I suspect that Ricardo's on the right lines.
There isn't a 'choke', the injectors will provide the fuelling required, and commonly there is a servo that opens the throttle ever-so-slightly to provide the necessary fast idle speed.
Diagnosis? Don't know that bike specifically but I'd check the usual service items first and make sure that the servo, if any, is connected and working.

12-03-10, 08:43 AM

Thanks, Chaps .... i'll have a look this weekend .....

11-03-10, 07:46 PM	#1
LK-SV Guest Posts: n/a	Slow (auto) choke. Recently switched from a pointy SVS, to an ER6 .... but would appreciate some general help if poss... The auto choke on my bike seems really slow to react .. when I start the bike, unless I blip (or hold) the revs manually for a little while it'll stall (ie. auto-choke not kicking on) .... an then when the auto-choke does kick on, it seems to be on for too long, and only turns off if I blip the throttle .... ie. if i leave the bike idling, the auto choke won't take the revs down until I blip it .... How does the auto choke work ... what can I do to improve it ?? I've got some new spark plugs (iridiums) to fit, to see if it helps ... but whatelse can it be ?? Ta !!

11-03-10, 08:43 PM	#2
TSM The Sick Man Mega Poster Join Date: Nov 2004 Location: Peckham.SE.LDN Posts: 4,768	Re: Slow (auto) choke... stuck throttle actuator, tb prolly needs balancing, how old is bike? __________________ OTR: KTM 690 Duke R 2015 Full Akro SIDELINE: Kwak ZX636 A1P 2002, Red, R&G's, Yoshi, Double Bubble Screen GONE: Kwak ZX-7R P1, Full Akro, Undertray, Screen GONE: SV650S K2 Very Bruised & Without Fairing, Motovation Frame Sliders, R&G Ally Sprocket Toe Protector, HEL 2 Line Setup, GSXR K1 600 RWU Forks, Barnett Clutch & Springs, Penske 8981 Shock, Gilles Ti Rearsets, Steel Barends, Scottoiler, AFAM Chain & Sprockets, Twin FIAMM Horns, Skidmarx Bellypan, Full Micron Zeta Steel System, Cut down undertay. Forum Problems & Information / Site Suggestions

11-03-10, 08:48 PM	#3
LK-SV Guest Posts: n/a	Re: Slow (auto) choke... 2006 with 4500 miles on it ....

11-03-10, 10:16 PM	#4
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: Slow (auto) choke. There's no 'choke' as such, having fuel injection it works rather differently. __________________ 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"

11-03-10, 11:00 PM	#7
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: Slow (auto) choke. I suspect that Ricardo's on the right lines. There isn't a 'choke', the injectors will provide the fuelling required, and commonly there is a servo that opens the throttle ever-so-slightly to provide the necessary fast idle speed. Diagnosis? Don't know that bike specifically but I'd check the usual service items first and make sure that the servo, if any, is connected and working. __________________ 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"

12-03-10, 08:43 AM	#8
LK-SV Guest Posts: n/a	Re: Slow (auto) choke. Thanks, Chaps .... i'll have a look this weekend .....

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