Author Topic: Tech Tip: Fast idle  (Read 7764 times)

Offline seth

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Re: Fast idle
« Reply #15 on: Saturday, 18 May 2019, 10:41 pm »
Indeed it the same if you can do carbs you'll be fine.
Sounds like the throttle bodies have been over adjusted(and are set to high) so bringing them all down should bring the fast idle adjust back into use.
Take your time and you'll be ok
Good luck buddy  :cheers:
only a slightly modified gsx1400
oh and a standard one too

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Offline Andre

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Re: Fast idle
« Reply #16 on: Saturday, 18 May 2019, 10:42 pm »
#1 in the attached pic is for syncing 1/2 with 3/4.
#2 is for fast idle. Don't touch this until after you have done everything else (see above posts of Seth and Northern). I would start with cleaning all the connectors first with contact cleaner. EDIT: just read the last posts. Synching might be all you need to do.

Here you can see what makes the "little wheel" move:
&feature=youtu.be

Offline seth

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Re: Fast idle
« Reply #17 on: Saturday, 18 May 2019, 10:46 pm »
Great info @Andre
This should be made a sticky or something( @gsxbarmy @VladTepes ) as its so very useful to know where the adjusters are(I've never adjusted mine so wasn't totally sure).
We'll found buddy hope this helps @Simonic
 :cheers:
only a slightly modified gsx1400
oh and a standard one too

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Offline Simonic

Re: Fast idle
« Reply #18 on: Saturday, 18 May 2019, 11:00 pm »
Many Thanks to you both Seth and Andre.
The video was especially interesting.
The little wheel is in fact in line with the operating cam so this would suggest the the trottle bodies are indeed over adjusted on the offside bank.
I'll report back when i've had done the synchro.

Thank You again gentlemen
'04 GSX14,'81 Z1000ST,'71 Dodge Charger Superbee

Offline Andre

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Re: Fast idle
« Reply #19 on: Saturday, 18 May 2019, 11:02 pm »
BTW, my fast idle problem was solved after I re-re-cleaned connectors. First cleans were done with WD40, last one with contact cleaner :stir:

Offline gsxbarmy

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Re: Fast idle
« Reply #20 on: Sunday, 19 May 2019, 01:38 am »
Great info @Andre
This should be made a sticky or something( @gsxbarmy @VladTepes ) as its so very useful to know where the adjusters are(I've never adjusted mine so wasn't totally sure).
We'll found buddy hope this helps @Simonic
 :cheers:

@seth - this thread has been a sticky for a long time already.....no need to re-sticky it  :onya:

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Offline seth

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Re: Fast idle
« Reply #21 on: Sunday, 19 May 2019, 03:02 am »
@gsxbarmy
Sorry i ment just the picture of the adjusters I know this is a sticky thread.
It will save time when folk come asking for this very thing .
Thanks for the reply buddy .
 :onya:
only a slightly modified gsx1400
oh and a standard one too

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Offline Andre

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Re: Fast idle
« Reply #22 on: Sunday, 19 May 2019, 11:14 am »
@seth I put in a couple pics in Fuelling / Re: Synchronize your Throttle Valves. I think they belong there.

http://gsx1400owners.org/forum/index.php?topic=262.msg55089#msg55089

Offline seth

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Re: Fast idle
« Reply #23 on: Sunday, 19 May 2019, 06:02 pm »
Cheers buddy between what @gsxbarmy had already done and your added pictures there is everything in one place .
Top job  :onya:
only a slightly modified gsx1400
oh and a standard one too

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Offline Simonic

Re: Fast idle
« Reply #24 on: Sunday, 02 June 2019, 08:17 pm »
Reporting back....
I've managed to synch the throttle bodies ok.
The rhs was doing al the work and in addition to that the difference between 1+2 was huge. it really looks like someone had just been trying to make some adjustments without knowing what they were doing.
The bike is running much better now.
The fast idle still is not working but i can get the bike started ok.
This is a job foar another day.

I'd like to thank all you guys who have offered advice. Much appreciated  :cheers: :cheers:
'04 GSX14,'81 Z1000ST,'71 Dodge Charger Superbee

Offline seth

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Re: Fast idle
« Reply #25 on: Monday, 02 September 2019, 11:00 pm »
only a slightly modified gsx1400
oh and a standard one too

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Offline T250

Re: Fast idle
« Reply #26 on: Monday, 25 May 2020, 06:30 pm »
Reporting back....
I've managed to synch the throttle bodies ok.
The rhs was doing al the work and in addition to that the difference between 1+2 was huge. it really looks like someone had just been trying to make some adjustments without knowing what they were doing.
The bike is running much better now.
The fast idle still is not working but i can get the bike started ok.
This is a job foar another day.

I'd like to thank all you guys who have offered advice. Much appreciated  :cheers: :cheers:

I know this is an old thread, but did you get the fast idle sorted out? I have a mate that has the same problem, TPS and STPS are just about spot on, but when measuring the voltage as mentioned in another post, adjusting the fast idle screw makes no change to the voltage, the resistance of STVS is correct as are all other sensors...bit of a strange one, bike runs and pulls really well apart from this.

Offline Blubber

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Re: Fast idle
« Reply #27 on: Tuesday, 26 May 2020, 03:53 pm »
Reporting back....
I've managed to synch the throttle bodies ok.
The rhs was doing al the work and in addition to that the difference between 1+2 was huge. it really looks like someone had just been trying to make some adjustments without knowing what they were doing.
The bike is running much better now.
The fast idle still is not working but i can get the bike started ok.
This is a job foar another day.

I'd like to thank all you guys who have offered advice. Much appreciated  :cheers: :cheers:

I know this is an old thread, but did you get the fast idle sorted out? I have a mate that has the same problem, TPS and STPS are just about spot on, but when measuring the voltage as mentioned in another post, adjusting the fast idle screw makes no change to the voltage, the resistance of STVS is correct as are all other sensors...bit of a strange one, bike runs and pulls really well apart from this.

Might be worth checking if the cam wheel is actualy on the cam... found mine was not seated on the fast idle cam.

You can have all the correct measurements on all sensors but if there is nothing to engage the high idle to... well... you feel kinda stupid when you remove your old throttle bodies to replace them with a new bank  :doh:
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Offline T250

Re: Fast idle
« Reply #28 on: Wednesday, 27 May 2020, 04:09 am »
Might be worth checking if the cam wheel is actualy on the cam... found mine was not seated on the fast idle cam.

You can have all the correct measurements on all sensors but if there is nothing to engage the high idle to... well... you feel kinda stupid when you remove your old throttle bodies to replace them with a new bank  :doh:

Checked the roller was seated all okay, just starting to wonder if the throttle adjustment is way off and contributing to this problem. Going to get the bike over to my place and have a check through, at least I'll be able to compare it to mine  ;)

Offline Persizi

Re: Fast idle
« Reply #29 on: Thursday, 15 July 2021, 07:34 pm »
Hi guys. I have a very stupid question. Where is the secondary throttle valve and how can open or close it by a finger?

 

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