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#460230 - 10/23/12 5:05 pm no choke cable on 1969 triumph bonneville  
Joined: Oct 2012
Posts: 54
@@RICHARD@@79 Offline
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@@RICHARD@@79  Offline
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plattsburgh, new york
hello i recently bought a 69 bonneville. Before this i had daytona 500 with a choke cable and was simple too start. Now the bonneville has no choke and everytime i start it up it stalls out unless i put a little throttle on it....how do i adjust this without stalling out. ive read you dont need a choke cable. is it fairly easy adjustments..thank you

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#460233 - 10/23/12 5:34 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Dec 2004
Posts: 8,891
kommando Online content
kommando  Online Content


Joined: Dec 2004
Posts: 8,891
Scotland
Either keep more throttle on until it warms up or fit the choke and use it. If you adjust it so it runs well cold with no choke then it will run rich when warmed up, waste fuel and wear the bores out .

#460237 - 10/23/12 5:52 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Feb 2008
Posts: 4,049
Tridentman Online content
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Tridentman  Online Content

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Posts: 4,049
New Jersey USA
Many people seem to have no problems starting these bikes and running them with no choke.
I have had quite a few over the years and maybe I am unlucky but in every case they started better using the choke.
There was then a lot of variation in terms of how quickly the choke could be eased off.
Suggest you fit chokes to your Bonnie and see if it makes a difference. I think it will.They were fitted as standard in IMHO for a good reason.
I see you are in NYS (I am in NJ) and with the weather now turning much cooler I can well imagine problems starting to move off idle with no chokes.
HTH

#460239 - 10/23/12 5:54 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Mar 2005
Posts: 9,970
John Healy Online content
John Healy  Online Content



Joined: Mar 2005
Posts: 9,970
Boston, Massachusetts
Yes, you "put a little throttle to it" until it warms up enough to idle.

Nearly everything you drive has an automatic mechanical, or electronic, device that holds the throttle open some until the engine warms up.


#460247 - 10/23/12 6:18 pm Re: no choke cable on 1969 triumph bonneville [Re: John Healy]  
Joined: Oct 2012
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@@RICHARD@@79 Offline
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@@RICHARD@@79  Offline
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Posts: 54
plattsburgh, new york
ok thank you, i have plans on installing a choke cable, also the slides were removed so need those too...i live up near canadian border so its colder up here...i just see some say no need for it...i had one on my 1972 daytona..i just bought the bonnie 3 weeks ago and noticed it didnt have a choke..so plans are too install....thank u

#460283 - 10/23/12 9:38 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
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Excalibur Offline
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Excalibur  Offline
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New Zealand
It's exceedingly common to find the choke/s missing. Many owners chose to remove them to reduce complication. Finding the right balance of choke to use is the issue I'm recalling. The amount was either too much or too little so didn't suit all throttle positions.
Refit choke parts by all means. At least it will be making it more original.

#461125 - 10/29/12 4:56 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Apr 2008
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Ken Holby Offline
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Ken Holby  Offline
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Clarksburg, WV USA
My $0.02

'70 TR6R Chop

I removed my choke to keep things a lil' neater and found that even in the heat of Summer, I have to stand next to the bike for about 2 mins. before I can let off the throttle. If I let off earlier, it will die. Once it's running warm, the bike runs just fine. My throttle also has a screw I can tighten if I'd want to.

If you are around the N. border, I would highly suggest fitting a choke - especially if you will be riding in the "cool/cold" seasons.


'70 TR6R Chop (always in process)
#461223 - 10/30/12 3:22 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Jun 2002
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Stuart Online content
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Stuart  Online Content
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Scotland
Hi Richard,

Originally Posted By: @@RICHARD@@79
i just see some say no need for it

One possible reason is float heights - some have posted they've removed chokes as not required, then dropped the float heights after finding they're higher than the recommended, "0.08in. (2mm) below the front edge of the bowl", then found they need chokes again ... frown

Hth.

Regards,

#461235 - 10/30/12 4:50 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: May 2005
Posts: 3,753
shel Online content
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shel  Online Content
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ohio
I don't have chokes fitted to my Trident, it starts easy enough but it does require a little finesse with the throttle and a finger on the left carb tickler to keep it going at first.
I thought about putting the chokes back but I really hate the rats nest of cables required on a triple.


When given the choice between two evils I picked the one I haven't tried before
#461248 - 10/30/12 7:17 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Nov 2010
Posts: 2,800
kurt fischer Online content
#irideslow
kurt fischer  Online Content
#irideslow

Joined: Nov 2010
Posts: 2,800
Arlington, Massachusetts, USA
I find it much easier to start cold with tickling rather than fiddling with choke position. The first 30 seconds or so of running it might take another dab or two at the tickler.


Kurt
1968-70-71 Triumph TR6R Bitsa - 1969 Triumph TR6R - 1971 BSA A65L - 1973 Triumph TR5T
2005 Ducati MTS 1000S DS - 2012 Ducati Hyper 796 - 2014 Kawasaki ZX1000
#461467 - 11/01/12 1:11 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Sep 2005
Posts: 1,997
T140V-Rich Offline
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T140V-Rich  Offline

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Sunny South Carolina, (US)
Not to muddy the waters, but I have choke fitted and never use it. I push down the ticklers, when it shows signs of fuel, let off. Fires first time almost every time (95%).

But then my dad's T140 had the choke removed by the PO. It could take a few kicks before firing.

Both bikes had to be held open a little while before idling, but mine less so. 30 seconds and I'm generally good (77 T140).

Just info a couple more bikes' choke useage for comparison.

Cheers

Richard


1977 T-140V
1973 T-140V
2011 Bonneville SE
Author of "Relics and Reminiscing."
#461479 - 11/01/12 2:51 pm Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Aug 2002
Posts: 675
Doc_dup1 Online content
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Doc_dup1  Online Content
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Santa Barbara
To add more muddy to the waters, I ride all of my bikes and I never use the choke. I start them using the tickler and I have fitted each with oversize idle speed adjuster screws. When I first start the bike, I just turn the idle up a turn or so and it warms up just fine. On my Bonnies, I find that you can increase the idle speed on one carb and it works just fine. If you want to reinstall your chokes, there are actually a lot of parts in the system. You need the lever at the handlebar, the cable to the splitter box, the cable splitter box, the short cables that go to the carbs, the slides, the springs, and the brass tubes that go with the springs. Idle speed screws are cheap and easy if you just want to fix the cold running problem.

Good luck,

Doc


Doc

Mostly Triumphs with a few BSA's and a Norton.

#461540 - 11/01/12 11:50 pm Re: no choke cable on 1969 triumph bonneville [Re: ]  
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JBMorris Offline
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Posts: 1,515
Farmington,Connecticut,USA
My Bike's manual shows an air slide attached to the throttle valve.
The bike itself, never had these on the Amals, nor a choke cable.

Assume these items were removed when assembled from the crate here in the US?



1978 Bonneville T140V PX
#461549 - 11/02/12 1:31 am Re: no choke cable on 1969 triumph bonneville [Re: @@RICHARD@@79]  
Joined: Jun 2010
Posts: 504
MikeinBiddeford Offline
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Maine


Please do not believe anything I write. I am a hack but I like to guess the right answers.
#461550 - 11/02/12 1:58 am Re: no choke cable on 1969 triumph bonneville [Re: MikeinBiddeford]  
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JBMorris Offline
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JBMorris  Offline
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Farmington,Connecticut,USA
Hi Mike,
Switched over to Mikuni VM30 Roundslides about 4 yrs. ago.



'Enrichening' circuit levers in lieu of a 'choke'.

No longer shows 'Made in Japan' as some file work has taken care of it!
. . . and a mild polish out.


1978 Bonneville T140V PX
#461629 - 11/02/12 8:19 pm Re: no choke cable on 1969 triumph bonneville [Re: MikeinBiddeford]  
Joined: Nov 2010
Posts: 2,800
kurt fischer Online content
#irideslow
kurt fischer  Online Content
#irideslow

Joined: Nov 2010
Posts: 2,800
Arlington, Massachusetts, USA
Originally Posted By: MikeinBiddeford


I use the extended idle speed screws in both my Tigers.

I use the brass aftermarket speed screw in the Bitsa, (but I threw away the extended brass mixture screw, and went back to stock AMAL on the mixture).

On the TR6R, I use the genuine AMAL extended screws. Last time I looked they are listed in the BCS catalog.

And yep, before starting, I turn the speed screw in 1/2 turn, tickle, kick, tickle more if needed.

I put the choke back on the TR6R just for looks.

There ya go, my experience, in excruciating detail, TMI, no doubt.


Kurt
1968-70-71 Triumph TR6R Bitsa - 1969 Triumph TR6R - 1971 BSA A65L - 1973 Triumph TR5T
2005 Ducati MTS 1000S DS - 2012 Ducati Hyper 796 - 2014 Kawasaki ZX1000

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