Carburettors on Honda CB125T and CB125TD

[PeterT]

Hello.
I am renovating a Honda CB125TD 1983 with no carburettors.
Is the carburettors from a CB125T interchangeable with CB125TD ?.
Hoping for an answer.
Peter Thornström Sweden.

[Teflon-Mike]

1976-1980, CB125'T' had twin shock rear suspension.
26mm carbs for the 'full-power' engine, with a rigid choke link between them, and mounted 'splayed' to either side of the frames 'spine' between them.
1981-1985 CB125TD-C was badged 'Super-Dream'. Had mono-shock rear suspension, and 'Reduced effect' engine to meet UK 12.5bhp licence limits in most euro markets. Used 24mm carbs, with 'flex link' between the chokes, splayed 'in' toward the middle, rather than 'out' to fit in frame to suit mono-shock mounting.
1985-1989 (ish) CB12TD-E was badged CB125T 'Deluxe'. Nie on dentical to the 'Super-Dream'. Only changes were the pant scheme, and placement of the rear reflector and number-plate lamp, ISTR.
1988 - 1993 (ish) CB125TD-J was badged CB125T (without the Deluxe). Large number of revisions to this model; starting with 'corporate' paint scheme as similar era CG125's. Got cast wheels with tubless tyres, as main advertised 'change' but engine hugely dfferent with a new crank to take Hi-Vo rather than plain roller cam-chain; cam-profile was changed to further detune the engine, for econmy & emmissions, and all new 'CV' type carbs rather than simple slide carbs.

SO.. WHICH CB125T do you hope to pillage carbs from?

Early T-shock carbs wont fit the manifolds on the later mono-shock bikes. You could use the manifolds of the earlier bike, too, but then the carbs would foul the frame.

Later TD-J carbs could be made to fit, but agan, you'd need the TD-J manifolds, rubbers ad air-box.

Middle era TD-E carbs would bolt straight up.

Simplest and easist fix, would be to bu a pair of CB125TD-C carbs of e-bay.. they will fit.. ae not hard to come by and arent even all that 'expensive'.

The 'problem' I suspect is that you don't have the rubber stubs that joins the carbs to the inlet manifold.....

Thee have a horrible habbit of perishing, and being 'torn' by numpties removing the carbs to 'clean them' without first removing the air-boxes ad pulling them out from between the rubbers, tearig them as they do so!

These parts are No-Longer-Available and 'decent' second hand ones, are like hens teeth to get hold of. I have actually bought and parted out whole bikes to get decent let rubbers!

I'd worry about that problem, before anything else on the bike, 'cos that could be the 'killer' to the project.
____________________
My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[P.addy]

Yes or no then tef rather than that sea of useless cabbage from your pond water brain.

[PeterT]

Hello Telflon-Mike.

I sent you a mail but it seems to be lost in cyberspace..

I have been working with some Honda models: CB250N, CB650Z, GL1000K3, CB750F (1982), CB1100F (1983) and now CB125TD (1983). The 250N and 650Z is sold but my garage is still crowded. Have found your website that is very helpful since I am replacing the cylinders and pistons with the same new equipment as in your article and rebuilding the top end.

I bought the bike with a seized engine and it turned out that I have to replace the crankcase, cylinders and pistons and they are now safe in my garage. After I picked up the bike I noticed that the carburettors was missing. The seller told me that they should be with the rest of the bike and that he should try to find them. He has not responded yet so I am investigating other options.

The firm that provided the crankcase https://www.spinnin-wheel.se/ has a lot of Honda parts and can offer a set of carbs from a CB125T, picture attached.

I understand from your answer that if I have the mainfolds (17111-KC1-000) and the rubbers (16211-399-700), that i suppose position the carbs, should the carbs on the picture fit and not interfere with the frame. Is this a correct assumption from your point of view ?. The inner diameter on the mainfolds are 24mm and I suppose that it means that my bike originally had the same carbs as in Great Britain.

You said that the carbs from a 76 – 80 model had a rigid choke link but the carbs on the picture seem to have a flexible link. Maybe the guy at Spinning Wheel made a mistake and the carbs are from a TD model.

Hoping for an answer as soon as you have time.

[Teflon-Mike]

[Fizzer Thou]

This is the best pic that I can find of the carbs on my CB125T2

https://i666.photobucket.com/albums/vv23/WiNot_Rhencullen/CB125T2/Picture019.jpg
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Just talk bikes.What else is there?

Always have a 'Plan B'

[PeterT]

Hello again.

Thank you for sharing your knowledge with me. The seller has found the carburettors and I don´t ned to by any new .

The work will go on and I will be back when I have a new problem.

With Best Reagrds / Peter Thornström.

[Hahadumball]

teff was pretty tame in this thread!
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Fin: no matter how much I look at It I can't understand what was going through my head, all I remember is going about 80 and redlining it to stop it seizing.
360 Deg... Five 1/4 turns. :- Teflon-Mike 18 Jan 2015

[Hawkeye1001]

Hello....
I'm looking for a adjutabale monoshock for my honda cb125t2....
Can anyone help.......
Original spring is weak.......