Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


Throttle won't snap back properly.

Reply to topic
Bike Chat Forums Index -> The Workshop Goto page 1, 2  Next
View previous topic : View next topic  
Author Message

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 22:59 - 21 Jan 2015    Post subject: Throttle won't snap back properly. Reply with quote

Discovered this just after putting on some heated grips, I think I fucked the cable up by twisting the throttle the wrong way (past the closed position) while twisting the grips into place.

Something felt like it snapped and the throttle wouldn't return at all, but when I opened up the housing the close cable had just slipped off the side of the throttle tube thing and was snagging between the throttle tube and the plastic housing.

Put the cable back in place and screwed it back up. Now instead of the throttle snapping immediately back to closed position upon release, it returns slowly.

So then a friend and I checked the old cables, one of them appeared to be warped (the close cable) so we replaced both cables that came in a pair. Still the throttle closes slowly.

The cables don't seem to be snagging on anything. They've been adjusted/tightened properly by my mate and the throttle works properly but it just closes slowly.

Lubed the handlebar/throttle tube. Lubed cables. Lubed the housing.

Suspected the cables might be snagged somewhere but they weren't catching on anything or being squeezed by anything.

Tried pulling the open cable and when releasing it, it snaps back. When its on the throttle tube and I twist it, it doesn't snap back but does it slowly.

Tube is lubed, every fucking thing is lubed and nothing is snagging. My actual throttle thing works on it's own without cables too.

Can't figure out what's causing it, two new cables connected properly and its still causing a problem.

The cables DID feel like they were snagging on something at some points (when we were moving the throttle tube about playing with the position to see if that effected it, which it did) but couldn't see where it was snagging, might have to take the tank off.

I have aftermarket lowered handlebars which could affect the position of the throttle cables, this could be causing it despite them being tensioned properly?

Thinking about taking it to a mechanic now cause we spent two days trying to figure it out.
 Back to top
View user's profile Send private message You must be logged in to rate posts

SQL
World Chat Champion



Joined: 08 Aug 2012
Karma :

PostPosted: 23:11 - 21 Jan 2015    Post subject: Reply with quote

My roxter grips took a little while to "bed" in the throttle was slow to return after about 2 weeks it was fine, I put it down to the extra cables taking a while to seat correctly.
 Back to top
View user's profile Send private message Visit poster's website You must be logged in to rate posts

Raffles
World Chat Champion



Joined: 14 Apr 2009
Karma :

PostPosted: 23:24 - 21 Jan 2015    Post subject: Re: Throttle won't snap back properly. Reply with quote

What lubricant did you use between your handlebar and your throttle tube?
____________________
A good loser will always be a loser.


Last edited by Raffles on 23:44 - 21 Jan 2015; edited 1 time in total
 Back to top
View user's profile Send private message You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 23:42 - 21 Jan 2015    Post subject: Re: Throttle won't snap back properly. Reply with quote

Raffles wrote:
Meef wrote:
Newbie stuff

Take your throttle grip apart and remove the grease that you applied to the handlebar and the handle grip. These parts should be left dry or lubricated with a silicone based product.


Well we tested before applying any lube to the cables and it was the same slow return. Then we lubed it to see if that'd fix it, again slow return.

So it can't be the lube causing the problem because we tried with and without. Cables were not pre-lubed.
 Back to top
View user's profile Send private message You must be logged in to rate posts

Raffles
World Chat Champion



Joined: 14 Apr 2009
Karma :

PostPosted: 00:03 - 22 Jan 2015    Post subject: Reply with quote

I apologise for any confusion that may have been caused by the post editing that occurred during the Op's most recent post Sad
I am, however, still unsure whether or not your reference to lubrication refers to the cables or the throttle grip.
____________________
A good loser will always be a loser.
 Back to top
View user's profile Send private message You must be logged in to rate posts

el_oso
World Chat Champion



Joined: 17 May 2008
Karma :

PostPosted: 00:26 - 22 Jan 2015    Post subject: Reply with quote

have you set the freeplay right?
____________________
Duke 390
Previous: '05 XR125L | '96 XJ600S Diversion |'05 Suzuki GSXR1000 | '05 Honda CBR125-R | '97 YZF 600R Thundercat | '11 Honda CBR250
Car: Jeep Wrangler 4.0L
 Back to top
View user's profile Send private message You must be logged in to rate posts

iooi
Super Spammer



Joined: 14 Jan 2007
Karma :

PostPosted: 05:28 - 22 Jan 2015    Post subject: Reply with quote

Either you pushed it on too far, so is snagging on the bar end. Or the bar end is tight against the grip.
____________________
Just because my bike was A DIVVY, does not mean i am......
 Back to top
View user's profile Send private message You must be logged in to rate posts

FriendlyEllis
Spanner Monkey



Joined: 28 Dec 2012
Karma :

PostPosted: 06:17 - 22 Jan 2015    Post subject: Reply with quote

iooi wrote:
Either you pushed it on too far, so is snagging on the bar end. Or the bar end is tight against the grip.


^^ This^^
____________________
Honda CB600F Hornet 2013 -> Kawasaki Z1000SX ABS Tourer 2015
 Back to top
View user's profile Send private message You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 06:38 - 22 Jan 2015    Post subject: Reply with quote

Used a dry chain lube my mate had until it was dripping from bottom of cable. WD40 in the casing & on tube.

Free play has been set.

I don't have bar ends, the bars round off spherically. Also they snap back into place exact same position as before because there's a little hole where the casing with the kill switch latches into and the throttle tube fits into that.
 Back to top
View user's profile Send private message You must be logged in to rate posts

FriendlyEllis
Spanner Monkey



Joined: 28 Dec 2012
Karma :

PostPosted: 06:41 - 22 Jan 2015    Post subject: Reply with quote

Meef wrote:
Used a dry chain lube my mate had until it was dripping from bottom of cable. WD40 in the casing & on tube.

Free play has been set.

I don't have bar ends, the bars round off spherically. Also they snap back into place exact same position as before because there's a little hole where the casing with the kill switch latches into and the throttle tube fits into that.


Are you sure????
____________________
Honda CB600F Hornet 2013 -> Kawasaki Z1000SX ABS Tourer 2015
 Back to top
View user's profile Send private message You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 06:45 - 22 Jan 2015    Post subject: Reply with quote

Just ran downstairs and had a look and I'm sure the assembly snapped back into the same place. If that was the case it wouldn't screw back on.

This is mind boggling right now :S
 Back to top
View user's profile Send private message You must be logged in to rate posts

FriendlyEllis
Spanner Monkey



Joined: 28 Dec 2012
Karma :

PostPosted: 06:46 - 22 Jan 2015    Post subject: Reply with quote

But your heated grip may be slightly longer than you old grip and catching on the bar ends (that a aren't there Wink )
____________________
Honda CB600F Hornet 2013 -> Kawasaki Z1000SX ABS Tourer 2015
 Back to top
View user's profile Send private message You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 06:58 - 22 Jan 2015    Post subject: Reply with quote

FriendlyEllis wrote:
But your heated grip may be slightly longer than you old grip and catching on the bar ends (that a aren't there Wink )


They're not longer, they didn't need cutting down to size, they match the throttle tube's length.

It must be something up top though, could there be some kind of damage to the housing that holds the cables to the handlebar tube causing it to snag the cables?
 Back to top
View user's profile Send private message You must be logged in to rate posts

c_dug
Super Spammer



Joined: 04 Sep 2007
Karma :

PostPosted: 07:34 - 22 Jan 2015    Post subject: Reply with quote

Did you use glue to stick the grips in place? I've had issues before where some glue has got where it shouldn't and caused issues. There was no way to tell what was going on until I'd remove the grips.
____________________
I am a bellend, I am a man of constant sorrow, I am a gummy bear, I am a rock.
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 08:06 - 22 Jan 2015    Post subject: Reply with quote

c_dug wrote:
Did you use glue to stick the grips in place? I've had issues before where some glue has got where it shouldn't and caused issues. There was no way to tell what was going on until I'd remove the grips.


Yeah the grips were supplied with superglue, I glued grip to the throttle tube. None of it got between the tube and the handlebar though because we took that off and checked.

We spent quite a few hours taking the bike apart yesterday.

Side note, fucking got glue on my fairings Laughing
 Back to top
View user's profile Send private message You must be logged in to rate posts

Minty
World Chat Champion



Joined: 23 Dec 2005
Karma :

PostPosted: 08:07 - 22 Jan 2015    Post subject: Reply with quote

c_dug wrote:
Did you use glue to stick the grips in place? I've had issues before where some glue has got where it shouldn't and caused issues. There was no way to tell what was going on until I'd remove the grips.


Yeah, I'd go with removing the grips and see if everything is then fine once again. Sounds like a friction issue if you are happy the cables are as they should be.
____________________
My fingers smell of your mum.
 Back to top
View user's profile Send private message You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 08:08 - 22 Jan 2015    Post subject: Reply with quote

Minty wrote:


Yeah, I'd go with removing the grips and see if everything is then fine once again. Sounds like a friction issue if you are happy the cables are as they should be.


That's what I'm wondering this whole time, where the friction is coming from. I'm now thinking it's something I can't see, like how the cable sits inside the casing when I screw it back up, dunno if the casing could be damaged :S

Also, the throttle tube without cables in it moves around the handlebar easily so it can't be that causing it.

I'm convinced it isn't the cables because without the whole handlebar assembly, pulling on the cables lets the throttle snap shut.
 Back to top
View user's profile Send private message You must be logged in to rate posts

Rogerborg
nimbA



Joined: 26 Oct 2010
Karma :

PostPosted: 08:57 - 22 Jan 2015    Post subject: Reply with quote

Bike is a write off, I'll give you 5 ponds for it if the tank's full.

InB4 Paddy.

Meef wrote:
Tried pulling the open cable and when releasing it, it snaps back.

Right, that's not the problem.

So either it's the throttle grip sticking, or the return/close cable is sticking.

If you disconnect both cables, does the throttle grip rotate completely freely?

What about the close/return cable when you disconnect that and pull it on its own?

Meef wrote:
My actual throttle thing works on it's own without cables too

What does? The throttle body, down at the engine?
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike
 Back to top
View user's profile Send private message You must be logged in to rate posts

mudcow007
World Chat Champion



Joined: 01 Feb 2012
Karma :

PostPosted: 09:32 - 22 Jan 2015    Post subject: Reply with quote

when i have messed about with throttle cables -

its always been poorly routed cables that have stopped the throttle returning.

make sure the cables are fitted properly

can you turn the throttle with the cables (disconnected from carbs)

oh an have you got bar end weights? they maybe dragging on the throttle tube thingy me bob
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 09:44 - 22 Jan 2015    Post subject: Reply with quote

Rogerborg wrote:

If you disconnect both cables, does the throttle grip rotate completely freely?


Throttle grip rotates completely freely when disconnected, no snagging/friction.

Rogerborg wrote:

What about the close/return cable when you disconnect that and pull it on its own?


The return cable moves freely too when disconnected.

Rogerborg wrote:

What does? The throttle body, down at the engine?


Yeah the throttle body, forgot what it was called Laughing

mudcow007 wrote:

Can you turn the throttle with the cables (disconnected from carbs)


Yeah, when they're disconnected from throttle body and attached to tube I don't feel snagging or friction. Same goes for attached at throttle body and not attached at throttle tube handlebar grip thingie.

mudcow007 wrote:

oh an have you got bar end weights?


Nope

The incredibly strange part is that all parts work individually or semi connected, but when the whole thing goes together this problem occurs, I'm 100% missing one bloody detail.

I'm starting to wonder if the problem could be when it's all connected up and the throttle is turned, the close cable must be getting pinched by something? The part that doesn't add up with that though is that it wasn't getting pinched when the throttle cable was disconnected from the throttle body but attached at the handlebar end.

Also another problem with this is I've tried it while varying the tension on the cables, from slack to tight.. so the idea that it could be too tight and making the cable move and get pinched doesn't add up either.
 Back to top
View user's profile Send private message You must be logged in to rate posts

mudcow007
World Chat Champion



Joined: 01 Feb 2012
Karma :

PostPosted: 09:55 - 22 Jan 2015    Post subject: Reply with quote

i know if i have one cable set too tight on my bandit carbs the throttle wont return (this was with brand spanking new cables aswell)

just make sure everything is seated properly,

maybe take the carbs out so the cables come straight out an see if the throttle works then - just an idea
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 10:00 - 22 Jan 2015    Post subject: Reply with quote

mudcow007 wrote:
i know if i have one cable set too tight on my bandit carbs the throttle wont return (this was with brand spanking new cables aswell)

just make sure everything is seated properly,

maybe take the carbs out so the cables come straight out an see if the throttle works then - just an idea


Not sure how throttle cables work with a carb, mines fuel injected.

I'm gonna play with the tension on the cables again and see if that'll work.

Maybe the close cable needs to be tighter and the open needs to be a bit more loose.
 Back to top
View user's profile Send private message You must be logged in to rate posts

Rogerborg
nimbA



Joined: 26 Oct 2010
Karma :

PostPosted: 10:11 - 22 Jan 2015    Post subject: Reply with quote

Meef wrote:
Throttle grip rotates completely freely when disconnected, no snagging/friction.

The return cable moves freely too when disconnected.

Yeah, when [the cables are] disconnected from throttle body and attached to tube I don't feel snagging or friction. Same goes for attached at throttle body and not attached at throttle tube handlebar grip thingie.

Then it's goblins.

Meef wrote:
I'm starting to wonder if the problem could be when it's all connected up and the throttle is turned, the close cable must be getting pinched by something?

No, it's definitely goblins.

Offer is now 4 ponds, goblins are hell to shift.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike
 Back to top
View user's profile Send private message You must be logged in to rate posts

notbike
World Chat Champion



Joined: 02 Apr 2014
Karma :

PostPosted: 10:19 - 22 Jan 2015    Post subject: Reply with quote

I know borg, it sounds bloody impossible right, that's why I was actually debating taking it to a mechanic.

Literally mfw putting all the fairings back on after trying for hours.

https://media.tumblr.com/tumblr_m9gwxaC3ao1qdk18g.jpg
 Back to top
View user's profile Send private message You must be logged in to rate posts

b422063
Crazy Courier



Joined: 14 Oct 2014
Karma :

PostPosted: 10:37 - 22 Jan 2015    Post subject: Reply with quote

It's not a bad choice of route for the grips power cable is it?
 Back to top
View user's profile Send private message You must be logged in to rate posts
Old Thread Alert!

The last post was made 11 years, 5 days ago. Instead of replying here, would creating a new thread be more useful?
  Display posts from previous:   
This page may contain affiliate links, which means we may earn a small commission if a visitor clicks through and makes a purchase. By clicking on an affiliate link, you accept that third-party cookies will be set.

Post new topic   Reply to topic    Bike Chat Forums Index -> The Workshop All times are GMT
Goto page 1, 2  Next
Page 1 of 2

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 

Debug Mode: ON - Server: birks (www) - Page Generation Time: 0.17 Sec - Server Load: 1.46 - MySQL Queries: 13 - Page Size: 133.77 Kb