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| mat1600 | | Thunderbird |  |  | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 28 Apr 2013 - 13:53 Post title : Throttle sleeve wear check | | | While messing with my knackered dip beam I decided to check my throttle sleeve for an upcoming tour.
Undo the two cross head screws for the casing and allow the front part to swing down (watch it doesn't scratch your tank).
You will see everything from here and inspect closely, as this is what I found. (I am sure someone has pointed this out before, but at the time I couldn't see what they meant)
Which was caused by this sharp edge on the inside of the back casing.
So I got out the Dremmel to soften the edge and create a bigger radius. (smoothed it with grit paper after pic)
If you have the same problem and need to remove the handgrip to remedy it, slacken the top throttle cable (keep in mind how many threads you can see on the cable adjuster, for replacement), then remove the c/head cable retaining screw, unscrew the bottom cable gland nut from the casing, remove both cable nipples from the grip, grip is free to slide away from h/bars.
| My first natural instinct is to breathe. My second is to evade tax's.
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| mjgt | | Thor | |  | | Reg. Date | : | 16/09/2011 | | Posts | : | 2,201 | | Location | : | North Somerset, United Kingdom |
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| | Posted : 28 Apr 2013 - 18:32 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | God tip, I will check mine out during the week 
| Mick . . .  Keep the rubber side down!!
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| Sensiblepete | | Set | |  | | Reg. Date | : | 20/08/2011 | | Posts | : | 158 | | Location | : | Sweden |
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| | Posted : 28 Apr 2013 - 18:57 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | Hi Mat,
good pictures (better than mine) of an issue Triumph should have made a mandatory servicebulletin when it first arose . . .
Suggest all members check their bikes ASAP
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| Linkdog | | Thor | |  | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,947 | | Location | : | Groveland, FL., United States |
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| | Posted : 29 Apr 2013 - 03:55 Post title : Re: Throttle sleeve wear check (Re: Sensiblepete) | | |  Hmmm. I've never had any problems with mine and I keep mine taught (no slack ) but then again I've never checked mine, another to do. Good find
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| mat1600 | | Thunderbird | | | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 29 Apr 2013 - 19:41 Post title : Re: Throttle sleeve wear check (Re: Linkdog) | | |
Linkdog wrote:
Hmmm. I've never had any problems with mine and I keep mine taught (no slack ) but then again I've never checked mine, another to do. Good find |
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I wasn't and haven't had any problems with mine, but it looks like I may have had a problem in the future.
| My first natural instinct is to breathe. My second is to evade tax's.
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| John | | Set | |  | | Reg. Date | : | 20/05/2012 | | Posts | : | 84 | | Location | : | Aylesbury, Buckinghamshire, United Kingdom |
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| | Posted : 29 Apr 2013 - 20:29 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | Mat how many miles you done? just trying to get an idea on likely hood
| Addicted to the TBird 
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| mat1600 | | Thunderbird | | | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 29 Apr 2013 - 20:55 Post title : Re: Throttle sleeve wear check (Re: John) | | |
John wrote:
Mat how many miles you done? just trying to get an idea on likely hood |
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23000. But have known these go at less than 10000 miles. Mine are not standard Triumph, they are iso grips
| My first natural instinct is to breathe. My second is to evade tax's.
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| GerPa | | Jupiter | |  | | Reg. Date | : | 10/12/2011 | | Posts | : | 1,919 | | Location | : | Mackay, Central Queensland, Australia |
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| | Posted : 29 Apr 2013 - 21:09 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | mat1600 wrote:
Linkdog wrote:
Hmmm. I've never had any problems with mine and I keep mine taught (no slack ) but then again I've never checked mine, another to do. Good find |
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I wasn't and haven't had any problems with mine, but it looks like I may have had a problem in the future.
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Good find Mat.
What sort of Grips are you using ?
I am using Avon Grips and all is good . As you say it is literally a five minute job to unscrew the switch cover and have a look.
Like "Linkdog" I keep mine fairly well adjusted up and from what I can see if you keep the return cable reasonably adjusted then the Throttle Grip cant get into the situation you have found.
Once again thanks for the alert Mat.
|  May-2011-1600, 20306 Tune, Mustang Vintage Solo Seat, Meerkat Cat Bypass, + Meerkat Modified Short TORS  ,K&N Air Cleaner,K&N Oil Filter, JBQ lifting system, Gold Plug Magnetic Sump Plug,Dart Fly screen, Rivco Risers, GiPro Gear Indicator, Breakaway Cruise Control, Avon ISO Grips, Scorpion Western Low Handlebars, Kury Switchblade Pegs, Garmin Zumo390LM,Michelin RC2 on Front RC 3 on ,Modified Rear Drive Pulley Hub Bearings (Mat1600/Alex4 Modification) Front Susp: Std & 7.5W Oil /126mm Air Gap & Rear:Hagon Nitro's with 26Kg/cm Springs + Lots of other "Bling" stuff.
| | Post edited by GerPa on 29 Apr 2013 - 21:11 |
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| mat1600 | | Thunderbird | | | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 29 Apr 2013 - 21:36 Post title : Re: Throttle sleeve wear check (Re: GerPa) | | |
GerPa wrote:
What sort of Grips are you using ?
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Kury ISO .
| My first natural instinct is to breathe. My second is to evade tax's.
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| mat1600 | | Thunderbird | | | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 29 Apr 2013 - 21:40 Post title : Re: Throttle sleeve wear check (Re: GerPa) | | |
GerPa wrote:
from what I can see if you keep the return cable reasonably adjusted then the Throttle Grip cant get into the situation you have found.
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I am going to have a messabout when I have time. Get the return cable so it holds the plastic part away from the casting. Does it alter the revs any or is there plenty slack to take up ?
| My first natural instinct is to breathe. My second is to evade tax's.
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| Linkdog | | Thor | | | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,947 | | Location | : | Groveland, FL., United States |
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| | Posted : 29 Apr 2013 - 22:30 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | Yes it will increase the RPMs if you go too far. Before I loaded the Tor tune I had idling problems and this was my " band aid " although I would not recommend this because when you turn the bars it revs higher.
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| woody | | Chaac | |  | | Reg. Date | : | 10/07/2010 | | Posts | : | 874 | | Location | : | goulburn, nsw, Australia |
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| | Posted : 29 Apr 2013 - 23:56 Post title : Re: Throttle sleeve wear check (Re: mjgt) | | |
mjgt wrote:
God tip, I will check mine out during the week |
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Amen to that.
| Woody
Do not take life too seriously. You will never get out of it alive.
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| Leethal | | Zeus | |  | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,485 | | Location | : | Australia |
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| | Posted : 30 Apr 2013 - 01:03 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | IMO those grips are crap, right where that wear groove is on the outside section is where mine broke off, and they were only three months old. The stock grips are flexible in the cable retainng area, the ISO's are rigid plastic, read brittle. Despite Eddies best efforts ISO's warranty if you have purchased from the US, but live outside is crap, they hide behind the cost of freight factor.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| GerPa | | Jupiter | | | | Reg. Date | : | 10/12/2011 | | Posts | : | 1,919 | | Location | : | Mackay, Central Queensland, Australia |
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| | Posted : 30 Apr 2013 - 01:14 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | |
mat1600 wrote:
GerPa wrote:
from what I can see if you keep the return cable reasonably adjusted then the Throttle Grip cant get into the situation you have found.
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I am going to have a messabout when I have time. Get the return cable so it holds the plastic part away from the casting. Does it alter the revs any or is there plenty slack to take up ?
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Hi Mat
In my experience the answer is "No" the return cable is for exactly that and should not effect the idle, The Opening cable is the one that will increase the RPM if it is too tight.
GerryD
| May-2011-1600, 20306 Tune, Mustang Vintage Solo Seat, Meerkat Cat Bypass, + Meerkat Modified Short TORS ,K&N Air Cleaner,K&N Oil Filter, JBQ lifting system, Gold Plug Magnetic Sump Plug,Dart Fly screen, Rivco Risers, GiPro Gear Indicator, Breakaway Cruise Control, Avon ISO Grips, Scorpion Western Low Handlebars, Kury Switchblade Pegs, Garmin Zumo390LM,Michelin RC2 on Front RC 3 on ,Modified Rear Drive Pulley Hub Bearings (Mat1600/Alex4 Modification) Front Susp: Std & 7.5W Oil /126mm Air Gap & Rear:Hagon Nitro's with 26Kg/cm Springs + Lots of other "Bling" stuff.
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| AleXL4 | | Chaac | | | | Reg. Date | : | 17/09/2012 | | Posts | : | 571 | | Location | : | Gympie, Queensland, Australia |
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| | Posted : 30 Apr 2013 - 10:12 Post title : Re: Throttle sleeve wear check (Re: GerPa) | | | Hi Mat, Gerry,
Gerry is right.
You adjust the cables to set them where you want the twist grip to stop.
I also use the Kury ISO Grips from of my Speedmaster on the Thunderbird, and they work beautifully with no contact where a few of the members have had them chew off at the grip housing.
Alex
| Enjoying the Journey
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| mat1600 | | Thunderbird | | | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 30 Apr 2013 - 11:29 Post title : Re: Throttle sleeve wear check (Re: AleXL4) | | | Gerry, Alex
I have lots of slack in the return so will take it all out and then some.
| My first natural instinct is to breathe. My second is to evade tax's.
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| bnz433 | | Jupiter | |  | | Reg. Date | : | 10/06/2011 | | Posts | : | 1,842 | | Location | : | Clifton Park (Upstate), NY, United States |
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| | Posted : 30 Apr 2013 - 15:34 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | Mat/All - this is what I found when my Kury ISO busted out in the middle of nowhere (good samaritan drove me 2hrs, each way, to grab my old stocker, so I could get the bike home and avoid a $500 tow!!). Made these same recommendations last year, around late June'12.
I now have the Arlen Ness grips, and after "easing off" the sharp edge of the switch housing, no more nicks or marks on the cable holder. I'm willing to bet this is also the primary culprit for the Triumph heated grip failures.
Good write up....since I failed in that department!!!
Jamie
| Bennington Triumph Bash - 31May-2June 2019. Home of the (tied in '14 & '15) US RECORD T-BIRD FLOCKING!!!!!
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| Noladuck | | Set | |  | | Reg. Date | : | 05/06/2011 | | Posts | : | 260 | | Location | : | Portland, Oregon, United States |
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| | Posted : 01 May 2013 - 02:42 Post title : Re: Throttle sleeve wear check (Re: bnz433) | | | My ISO's broke too. I'm using Avon grips now. I think I need to get in there and inspect. Good thread.
Chris
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| mjgt | | Thor | | | | Reg. Date | : | 16/09/2011 | | Posts | : | 2,201 | | Location | : | North Somerset, United Kingdom |
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| | Posted : 04 May 2013 - 09:45 Post title : Re: Throttle sleeve wear check (Re: AleXL4) | | | Well I checked mine today and found it was showing signs of very slightly cutting into the twist grip, instead of just putting a round profile on it as mat did I made the area flat so if/when the twist grip contacts it, it is flat across the whole surface.
| Mick . . . Keep the rubber side down!!
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| mat1600 | | Thunderbird | | | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
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| | Posted : 04 May 2013 - 10:22 Post title : Re: Throttle sleeve wear check (Re: mjgt) | | |
mjgt wrote:
Well I checked mine today and found it was showing signs of very slightly cutting into the twist grip, instead of just putting a round profile on it as mat did I made the area flat so if/when the twist grip contacts it, it is flat across the whole surface. |
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I did that too. Went back to give it a bit more. I am also going to tension up the return cable a bit.
| My first natural instinct is to breathe. My second is to evade tax's.
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| mjgt | | Thor | | | | Reg. Date | : | 16/09/2011 | | Posts | : | 2,201 | | Location | : | North Somerset, United Kingdom |
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| | Posted : 04 May 2013 - 14:25 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | Yep, did that as well
| Mick . . . Keep the rubber side down!!
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| Linkdog | | Thor | | | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,947 | | Location | : | Groveland, FL., United States |
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| | Posted : 04 May 2013 - 15:42 Post title : Re: Throttle sleeve wear check (Re: AleXL4) | | |
AleXL4 wrote:
Hi Mat, Gerry,
Gerry is right.
You adjust the cables to set them where you want the twist grip to stop.
I also use the Kury ISO Grips from of my Speedmaster on the Thunderbird, and they work beautifully with no contact where a few of the members have had them chew off at the grip housing.
Alex
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I'm not so sure on this . The grip should have a positive stop in both directions ( I'm not sure on ours ) and for me it should be at the closed position stop and the slack taken up. If you're using the cables for a stop then you're putting a strain on the cables and what they're attached to. Just my way of thinking.
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| Linkdog | | Thor | | | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,947 | | Location | : | Groveland, FL., United States |
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| | Posted : 04 May 2013 - 15:44 Post title : Re: Throttle sleeve wear check (Re: mjgt) | | |
mjgt wrote:
Well I checked mine today and found it was showing signs of very slightly cutting into the twist grip, instead of just putting a round profile on it as mat did I made the area flat so if/when the twist grip contacts it, it is flat across the whole surface. |
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That's what I think.
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| zolti | | Thor | |  | | Reg. Date | : | 23/03/2010 | | Posts | : | 3,127 | | Location | : | newcastle , United Kingdom |
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| | Posted : 06 May 2013 - 06:24 Post title : Re: Throttle sleeve wear check (Re: Linkdog) | | |
Linkdog wrote:
. The grip should have a positive stop in both directions ( I'm not sure on ours ) and for me it should be at the closed position stop and the slack taken up. If you're using the cables for a stop then you're putting a strain on the cables and what they're attached to. Just my way of thinking. |
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i agree.
personally I would leave a couple of mm slack on non heated grips
interestingly mark swepson (hinckley) said that one reason for snapping heated grips was a lack of slack, he recommended 5mm.
ps good pics mat
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| Daycruiser | | Chaac | | | Reg. Date | : | 08/11/2011 | | Posts | : | 704 | | Location | : | Garner, NC, United States |
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| | Posted : 06 May 2013 - 09:20 Post title : Re: Throttle sleeve wear check (Re: zolti) | | | zolti wrote:
i agree.
personally I would leave a couple of mm slack on non heated grips
interestingly mark swepson (hinckley) said that one reason for snapping heated grips was a lack of slack, he recommended 5mm.
ps good pics mat |
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I have the OEM heated grips and I put slack in both cables as they were a little tight when new, I also lubed them with powder graphite real well. A couple of rechecks later and there are no signs of wear or cracking.
| | Post edited by Daycruiser on 06 May 2013 - 09:23 |
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| DrMooman | | Set | | | Reg. Date | : | 09/08/2016 | | Posts | : | 73 | | Location | : | Wales, Wales, United Kingdom |
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| | Posted : 11 Sep 2016 - 07:36 Post title : Re: Throttle sleeve wear check (Re: mat1600) | | | Great guide. I've added this procedure to my website. Lets hope all Thunderbird owners eventually know about this problem
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