Sticking Throttle

The place to discuss any issues with your Aprilia, share tips and handy reference links

Moderators: Aladinsaneuk, MartDude, D-Rider, Moderators

Post Reply
Message
Author
User avatar
Fausto
SuperBike Racer
SuperBike Racer
Posts: 1375
Joined: Thu Jan 04, 2007 3:04 pm
Location: Sunny Suffolk

Sticking Throttle

#1 Post by Fausto » Thu Feb 08, 2007 4:34 pm

I'm pretty sure that when I last gave it any thought my throttle would spring back shut if I let go of it.
Well I've noticed now that it needs manually twisting shut again. Both cables are intact but that's all I've looked at so far.

Any suggestions?

Also - what does the "choke" lever actually do? Doed it physically open the throttle at all?

User avatar
Gio
Double World Champion
Posts: 6179
Joined: Sun Dec 17, 2006 8:28 pm
Location: Chertsey

#2 Post by Gio » Thu Feb 08, 2007 4:41 pm

You need to oil it :smt003

User avatar
paddyz1
SuperBike Racer
SuperBike Racer
Posts: 1175
Joined: Wed Jan 17, 2007 10:14 pm
Location: Northwich, Cheshire

#3 Post by paddyz1 » Thu Feb 08, 2007 5:21 pm

Yep

choke opens the throttle a bit

User avatar
sabestian
SuperBike Racer
SuperBike Racer
Posts: 836
Joined: Sun Jan 14, 2007 11:02 am

#4 Post by sabestian » Thu Feb 08, 2007 5:30 pm

Why worry? You've got the cruise control for free :smt002
WD40 always worked for me. Spray it into the lines' hoses (you'll need to loosen them first). If you've got more time use proper oil, it'll work for longer.
If this doesn't work, a spring pulling it back may be broken or loose. Check under the airbox.

Oh, and don't trust any word you've just read.

User avatar
Fausto
SuperBike Racer
SuperBike Racer
Posts: 1375
Joined: Thu Jan 04, 2007 3:04 pm
Location: Sunny Suffolk

#5 Post by Fausto » Thu Feb 08, 2007 6:58 pm

Yeah I was thinking sticky cables BUT I read somewhere that some cables should NOT be oiled. Is it ok to lube the throttle cables ?

Actually I quite like the sticky throttle but there is probably some safety reason why it should spring shut upon release. Probably fail an MOT too :smt017

gazman
Despatch Rider
Posts: 24
Joined: Mon Jan 15, 2007 1:14 pm

#6 Post by gazman » Thu Feb 08, 2007 8:40 pm

hi,had the same problem.turned out the bar end had been pushed in towards the grip making it stick

User avatar
Kwackerz
Admin
Admin
Posts: 8362
Joined: Thu Dec 14, 2006 6:16 pm

#7 Post by Kwackerz » Thu Feb 08, 2007 8:48 pm

Fausto wrote:Yeah I was thinking sticky cables BUT I read somewhere that some cables should NOT be oiled. Is it ok to lube the throttle cables ?

Actually I quite like the sticky throttle but there is probably some safety reason why it should spring shut upon release. Probably fail an MOT too :smt017

Some cables come with the inner cable plastic coated. Some oils can and do damage these coatings, which is one of the reasons theyre not recommended to be oiled.
Never ride faster than your guardian angel can fly

User avatar
Samray
Double World Champion
Posts: 6234
Joined: Thu Dec 14, 2006 6:36 pm
Location: Riding round with Sheene and Simoncelli

#8 Post by Samray » Thu Feb 08, 2007 10:07 pm

Rode for many months with a grip that was binding just enough to give cruise control.
Surprising how often one needs to gesticulate with the right hand. :smt002

User avatar
Falco9
Aprilia Admin
Posts: 1154
Joined: Wed Jan 03, 2007 9:24 pm
Location: Wakefield. West Yorkshire

#9 Post by Falco9 » Thu Feb 08, 2007 10:41 pm

Fausto wrote:Yeah I was thinking sticky cables BUT I read somewhere that some cables should NOT be oiled. Is it ok to lube the throttle cables ?

Actually I quite like the sticky throttle but there is probably some safety reason why it should spring shut upon release. Probably fail an MOT too :smt017
To be honest, a throttle that didn't snap shut at the speed of light (alright very quickly) would scare me witless, the idea of the throttle remaining on after letting go of the grip is a terrifying thought

I must be (I am) getting old

F9

User avatar
Fausto
SuperBike Racer
SuperBike Racer
Posts: 1375
Joined: Thu Jan 04, 2007 3:04 pm
Location: Sunny Suffolk

#10 Post by Fausto » Fri Feb 09, 2007 9:10 am

gazman wrote:hi,had the same problem.turned out the bar end had been pushed in towards the grip making it stick
Ah, I like this theory and will go and have a look as soon as I can defrost the padlock.


Some cables come with the inner cable plastic coated. Some oils can and do damage these coatings, which is one of the reasons theyre not recommended to be oiled.
Anyone know if this applies to the Falco ? Or can I see the lining just by looking ?

User avatar
Gio
Double World Champion
Posts: 6179
Joined: Sun Dec 17, 2006 8:28 pm
Location: Chertsey

#11 Post by Gio » Fri Feb 09, 2007 9:38 am

Fausto wrote:
gazman wrote:hi,had the same problem.turned out the bar end had been pushed in towards the grip making it stick
Ah, I like this theory and will go and have a look as soon as I can defrost the padlock.


Some cables come with the inner cable plastic coated. Some oils can and do damage these coatings, which is one of the reasons theyre not recommended to be oiled.
Anyone know if this applies to the Falco ? Or can I see the lining just by looking ?
On my blackbird it had a nylon bush that stuck out the end about eighth of an inch at the bar end, so I'd guess and say if yours has one like that then don't oil it, you need a light grease (forgotten the name of it, sorry), if you disconnect the nipple from the throttle it should be possible to slide it out the end of the cable.

HTH :smt001

User avatar
Fausto
SuperBike Racer
SuperBike Racer
Posts: 1375
Joined: Thu Jan 04, 2007 3:04 pm
Location: Sunny Suffolk

#12 Post by Fausto » Fri Feb 16, 2007 4:55 pm

gazman wrote:hi,had the same problem.turned out the bar end had been pushed in towards the grip making it stick
Gazman wins !!!!

Yup it was the bar end. What must have happened is that the whole twist grip assembly had moved outwards slightly thus pressing against the bar end and causing the stickiness.

I just loosened the allen bolts and repositioned the twistgrip. Presto!

Anyone after a cheap cruise control could always do this in reverse. But I did not just recommend that :smt011

Post Reply