Biker.ie Forums Irish Motorbike Enthusiasts
Home Events Bikes for Sale Mobile Style Motorbike Chat Racing Rideouts » Register free!

Go Back   Biker.ie Forums > General > The Workshop

Reply
 
  #1  
Old 12th March 2018, 09:51 AM
adasiva adasiva is offline
Novice Racer
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Throttle spring

Hello there.
I have removed my carbs from my FZS 600 2002 and i have noticed that the spring the open the butterflies on the carb are not returning back when opening it by hand. Should they snap back? I think so but not sure since this is my first attempt to clean the carbs.
They were very dirty and i clean and lubed it but still when i push with my thumb they kept it open.

If the issue is the spring, is that a difficult thing to change? I have searched the net but cannot find any info on how to change them.

I have checked and they seem to be connected properly. I did not removed them while cleaning the carbs so don't know.

Has anyone had this issue before or has anyone changed these springs before?

Cheers
Reply With Quote
  #2  
Old 12th March 2018, 10:40 AM
Burt_Munro's Avatar
Burt_Munro Burt_Munro is offline
Supporter
 
Biker.ie Member No. 23564
941 posts since Aug 2010
Motorbike: Ducati Super Sport
Default Re: Throttle spring

Like you, I would have thought they should snap back but I'm no expert. A picture might help with some more useful answers from some of the other members!
Reply With Quote
  #3  
Old 12th March 2018, 12:05 PM
DavyH DavyH is offline
MotoGP Legend
 
Biker.ie Member No. 34191
2,225 posts since Dec 2014
Motorbike: Cb,Vtr,Xrv,Nt
Modifications: A few bits and pieces!
Default Re: Throttle spring

Are we definitely talking about the butterflies here,you sure it's not the diaphragm slides? They are under spring tension also but the fuel going past them tends to lubricate them and when they are old they bind a little when dry
Reply With Quote
  #4  
Old 12th March 2018, 01:07 PM
adasiva adasiva is offline
Novice Racer
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Re: Throttle spring

Hey thanks for the reply.

Click the image to open in full size.
Click the image to open in full size.
https://drive.google.com/file/d/15jR...ew?usp=sharing

Images above shows the butterflies closed, opened by pushing the spring and left opened (spring does not return)

Hope this will help clarify

thanks
Reply With Quote
  #5  
Old 12th March 2018, 01:09 PM
adasiva adasiva is offline
Novice Racer
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Re: Throttle spring

Going to just add the link to drive is faster to open

https://drive.google.com/file/d/15jR...ew?usp=sharing
https://drive.google.com/file/d/1v6Z...ew?usp=sharing
https://drive.google.com/file/d/1b1Y...ew?usp=sharing
Reply With Quote
  #6  
Old 12th March 2018, 02:32 PM
adasiva adasiva is offline
Novice Racer
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Re: Throttle spring

Hey Guys.
I just went home for lunch and decided to have another look. while i was contemplating what would be causing this issue a light bulb come on. Could it be the TPS as i had changed it.
So i removed it from the carbs and bingo! the spring snapped back.
I then put it back on and did not tied the TPS screws as much as it was before and they still snapping back.

So now i will have to reset the TPS but and try not to tie the screws too much.

Strange one

Good thing is that is not the springs that is the problem. But i am afraid that when i put the carbs back and reset the TPS this will happen again as I remember that i had to tied the screws in such way as to have a 5000 RPM steady reading.

Thanks for your help and i will let you know once i have put it back on the bike.

adasilva
Reply With Quote
  #7  
Old 12th March 2018, 02:34 PM
Notch000's Avatar
Notch000 Notch000 is offline
Supporter
 
Biker.ie Member No. 27659
772 posts since Oct 2011
Motorbike: Fazer 600
Default Re: Throttle spring

they should snap back, there are two cable runners, one for the throttle and one for the choke, are you sure you not adjusting the choke ?
Reply With Quote
  #8  
Old 12th March 2018, 02:55 PM
chopper's Avatar
chopper chopper is offline
spanner spinner
 
Biker.ie Member No. 1841 from meath
53,704 posts since May 2005
My Motorcycle Pics Motorbike: jap brit and euro
Modifications: mud
Default Re: Throttle spring

He had the tps back in slightly off centre or something
Reply With Quote
  #9  
Old 12th March 2018, 04:16 PM
adasiva adasiva is offline
Novice Racer
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Re: Throttle spring

Originally Posted by chopper
He had the tps back in slightly off centre or something

Just one question when you say off centre what do you mean?
thanks
Reply With Quote
  #10  
Old 12th March 2018, 06:28 PM
jp biker's Avatar
jp biker jp biker is offline
Veteran Racer
 
Biker.ie Member No. 36294 from the big smoke
2,797 posts since Jun 2016
Motorbike: bicycle
Modifications: big belly
Default Re: Throttle spring

Choppers area of expertise
Drop him a pm or call/txt him
Reply With Quote
  #11  
Old 14th March 2018, 10:01 AM
adasiva adasiva is offline
Novice Racer
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Re: Throttle spring

Originally Posted by jp biker
Choppers area of expertise
Drop him a pm or call/txt him
will do thanks
Reply With Quote
  #12  
Old 14th March 2018, 11:08 AM
manbearpig's Avatar
manbearpig manbearpig is offline
MotoGP Legend
 
Biker.ie Member No. 21867 from Dublin
1,494 posts since May 2010
Motorbike: giant mtb
Modifications: front disc brakes
Default Re: Throttle spring

Originally Posted by adasiva
Just one question when you say off centre what do you mean?
thanks
TPS should fit into a groove - you had it off center

Sorry about the pic - only one I could find online, it will only go on when seated properly
Attached Images
File Type: jpg TPS.jpg (22.0 KB)
Reply With Quote
  #13  
Old 15th March 2018, 08:48 AM
adasiva adasiva is offline
Novice Racer
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Re: Throttle spring

Hey manbearpig
thanks for the picture i know what you mean now.
:)
Reply With Quote
  #14  
Old 15th March 2018, 10:14 PM
adasiva adasiva is offline
Novice Racer
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Re: Throttle spring

Hey guys.
Thanks all for your inputs.
I still having some issues. When i remove the TPS the spring snap back closing the vents of the carbs, but as soon as i put the TPS and tied the screws it gets stuck. If i loose the screws its fine but then i don't see how the TPS will stay in place.
I checked that i had the TPS correct in place and to me there is only one way that it goes in which fits the groves as point out bh manbearpig.

Any ideas??
Reply With Quote
  #15  
Old 15th March 2018, 11:08 PM
Unfazed Unfazed is offline
MotoGP Star
 
Biker.ie Member No. 10688 from Cork
858 posts since Jun 2008
Motorbike: Fazer 1000, 600 & Serow
Default Re: Throttle spring

Remove the TPS rotate the inner until it stops, (note which direction you rotated it) put it on the carb and try it. If it does not work remove it and rotate it in the opposite direction until it stops now try it on the carb again.
Reply With Quote
  #16  
Old 16th March 2018, 07:43 AM
DavyH DavyH is offline
MotoGP Legend
 
Biker.ie Member No. 34191
2,225 posts since Dec 2014
Motorbike: Cb,Vtr,Xrv,Nt
Modifications: A few bits and pieces!
Default Re: Throttle spring

You need to fit the TPS with a load on the spring(the internal spring for the TPS). Just don't rotate it the wrong direction or you could damage it. Use a flat head screwdriver to get a feel for how it operates,then fit it to the locating tab and turn it to line up the bolt holes. Don't overtighten the screws! You will still have to adjust it but it makes very little difference on an fzs,you could run the bike without it if you're really stuck but you'd have to bypass it or your clocks will be hopping all the time

Last edited by DavyH; 16th March 2018 at 07:46 AM.
Reply With Quote
  #17  
Old 16th March 2018, 08:29 AM
Unfazed Unfazed is offline
MotoGP Star
 
Biker.ie Member No. 10688 from Cork
858 posts since Jun 2008
Motorbike: Fazer 1000, 600 & Serow
Default Re: Throttle spring

You are obviously not familiar with the TPS on the Fazer
Reply With Quote
  #18  
Old 16th March 2018, 08:32 AM
DavyH DavyH is offline
MotoGP Legend
 
Biker.ie Member No. 34191
2,225 posts since Dec 2014
Motorbike: Cb,Vtr,Xrv,Nt
Modifications: A few bits and pieces!
Default Re: Throttle spring

Originally Posted by Unfazed
You are obviously not familiar with the TPS on the Fazer
Why,is it not spring loaded?
Reply With Quote
  #19  
Old 16th March 2018, 08:36 AM
DavyH DavyH is offline
MotoGP Legend
 
Biker.ie Member No. 34191
2,225 posts since Dec 2014
Motorbike: Cb,Vtr,Xrv,Nt
Modifications: A few bits and pieces!
Default Re: Throttle spring

Might be thinking of the Suzuki ones
Reply With Quote
  #20  
Old 16th March 2018, 09:12 AM
adasiva adasiva is offline
Novice Racer
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 33845 from kerry
42 posts since Sep 2014
Motorbike: Fazer 600
Default Re: Throttle spring

Hey all.
Thanks for all you advice. I am not familiar with the TPS until it started giving me issues and i had to research and buy a new one. It seems strange that none of the google searches that i did was talking about your advice on how to attach it to the carbs Unfazed/ DavyH. I did not know that! But living and learning that's is my 'motto'!
I will try to set them with the spring pre-loaded and see.
I will let you guys know.
Thanks again for all you help.
Reply With Quote
Reply

  Return to Main Topic Biker.ie Forums > General > The Workshop

Tags
spring, throttle


Similar Threads
Thread Thread Starter Forum Replies Last Post
throttle repair HurricaneDream The Workshop 10 17th February 2018 12:16 PM
2006 r6 throttle cable LORENZO99 The Workshop 2 23rd January 2018 01:24 PM
Ohlins spring swap RubaDub The Workshop 8 15th December 2017 07:34 PM
Lubing throttle cables - advice needed The Windy City Rumbler The Workshop 10 17th November 2017 02:28 AM
Throttle Cable Sticking! st3vo The Workshop 12 7th April 2006 10:15 AM


Support Biker.ie


Forum RSS news feed Main Biker.ie RSS news feed