I am trying to ID a motor I got used for a custom build. It is a twin/ twin carb, right shift model. On the left case-half it has a number pad that says "T140V" followed by "AH23019" and on the actual cylinder (at the base)it says "BIRCO1" on the left side and "71-6337" on the right. If anyone could tell me what those numbers all or part mean it will be a great help with ordering a manual and parts. I have wanted to build a Triumph custom forever but don't want to cut up a perfectly good bike to do it. This is my chance!
Any help will be greatly appreciated. Also would love chatting with other bikers, enthusiasts and motorcyclists (just covering all of the "PC" bases there, LOL) about anything at all but especially about two-wheeled topics.
C-57, Looks like it originally came as a 1973(H), Jan(A), 750cc (T140), 5 speed (V). Good Luck with the rest of it. Joe P.S. I have the correct parts catalogues & shop manuals in stock. If I can help you - give me a shout.
Re: Need Help Identifying Triumph motor; possible T140V#89438 03/21/066:18 am03/21/066:18 am
Way cool! Thanks Joe, this is just getting better and better! I will definitely be needing that manual. DO you also sell parts and internals for this engine? I look forward to doing some business soon! My Email is Jiminy5703@yahoo.com; feel free to contact me there or thru the forum anytime. Thanks for the speedy reply bro. Ciao, Jim
Re: Need Help Identifying Triumph motor; possible T140V#89439 03/22/068:14 pm03/22/068:14 pm
C57, check your bore size when you pull the top end. Early '73s had 75mm bores before a change later in the model year to 76mm. Many times you can get a good deal on standard size 76mm pistons and rings on e-bay for your re-bore because not too many people can use standard bore pistons!
Re: Need Help Identifying Triumph motor; possible T140V#89440 03/23/0612:28 am03/23/0612:28 am
(Shameless thread hijacking ahead... excuse small children and the weak of spirit!) Panic... I recently discovered the TR7T and understand less than 200 were produced. Is the TR65 as rare? I intend to build a TR7T replica... am I mad? Or just very impolite? (shamefull apologies to all for cutting in!)
Re: Need Help Identifying Triumph motor; possible T140V#89442 03/24/061:53 pm03/24/061:53 pm
While I don't know the actual production figures on the TR65 Thunderbird, they can't have made very many. Introduced in 1981 as a bare bones low budget alternative to the Bonneville, it only lasted until 1983 when it was further reduced to 600cc.
K70's instead of Avons, no chrome on the front brake rotor, 7in. drum rear brake, no tach,
black 2into1 exhaust, points instead of EI, unpolished blacked out engine covers and rocker boxes,
cylinder barrels only have six fins, 76mm x 71.5mm bore & stroke, softer cams, single MkI Concentric. Rumor also has it that a very few Tiger Trails were also fitted with this engine (TR65T?).
Re: Need Help Identifying Triumph motor; possible T140V#89443 03/25/062:40 am03/25/062:40 am
Thank you J. The TR65T is more than a rumor... I think. I see evidence starting 1982 season at least a few were built... mostly overseas shipment. They appear to have run contiguous to the TR7T in 1982-1983 season. Similar to the 750 with 21" front wheel and that curious "flat track" rear section. Probably a decent performer with the short stroke engine! Also... I wonder if Willie G. Davidson was a British fan at the time; witness the XLCR Sporty of about the same time!
Re: Need Help Identifying Triumph motor; possible T140V#89444 05/27/062:54 pm05/27/062:54 pm
The TR65 is highly regarded in UK as the best motor Meriden produced with it's low vibes
beware the rear drum does lock the rear wheel easily...not good in the wet !
the finish for 1982 models in US style (note none exported there due to EPA regs on the AMAL Mk1 had polished covers and sliders and the T140 2-2 chromed exhaust system coming in a fetching smoked blue with silver scallops finish
Only 3 TR65Ts were built according to Woolridge's book on Trophy/Tiger models and their engines were all black painted with an elongated tank decal flat rectangular silencer , perforated alloy heat shield and passenger foot pegs on the swing arm- there's one in the London Motorcycle Museum in Greenford which used to belong to a customer of Reg Allens, then as now a Meriden dealer
Originally posted by J in KC: it only lasted until 1983
Might I respectfully point out that, in 1983, Meriden didn't make anything and didn't sell anything except its remaining fixed assets - it went bust in 1982.
Shame really, as there were a number of detail improvements ready for the 1983 season. One was Meriden *finally* :rolleyes: moved the footrests back to a 'normal' position for the UK-market handlebars and made a neat little gearchange linkage.
Originally posted by J in KC: TR65 Thunderbird, further reduced to 600cc.
This was because it was essentially a UK-market bike; the insurance for that market was dominated by one company (Norwich Union) with a policy that had a 'c.c. break' at 600, so a 650 T'bird was lumped in with litre-plus Jap 'crotch rockets'.
Originally posted by J in KC: K70's instead of Avons, no chrome on the front brake rotor, 7in. drum rear brake, no tach, black 2into1 exhaust, points instead of EI,
Actually, if you look at the bikes that were made, much of that applies only to the model's first season (1981); '82 bikes usually have a tacho. and the T160-/T140-type console, and separate exhausts and silencers. That said, you can't be pedantic because, by this time, Meriden would pretty much build what you wanted (I know of at least one TR7 Executive (full-dress tourer) with a factory-fitted frame-mounted fairing, when the publicised Executive was a T140 with a handlebar-mounted fairing).
Re: Need Help Identifying Triumph motor; possible T140V#89446 05/27/066:46 pm05/27/066:46 pm
I've seen a Tiger Executive, too, in smoked burgundy...Reg Allen's were servicing it just under ten years ago and a TR65 Exceutive. the fully faired model was an option on all Exectuives and can be seen on the 1981 brochure but it is the headlamp faired model we see pictures of in the 1982 brochure and pretty much everywhere else ...
On the 1983 issue, according to the VMCC and Harry Woolridge, I know of a TR65 which turned out to be the last 650cc bike made at Meriden in June 1983 although the frame was made in October 1982 and the bike was originally built as the show 600cc Thunderbird despite having orignally been designated for an anti-vibration conversion and was converted to a TR65 for the army to carry equipment to jam electronic signals to remote devices (it still had points ignition which would not itself be jammed !)
The instrument pod shared with the TR7T Tiger Trail was replaced by the standard instrument panel for 1982 including for the TR65T and indeed the white TR7Ts prepared for the UK Royal Military Police
May well be-it was in the same west London locale although I recall Reg Allen's saying something about it then (in the 1990's) belonging to someone at a rider training scheme- nice looking bike, though
You're right about Triumph making any specification an optional extra- Bill Crosby's son (of Reg Allen's dealership) has a TSS Executive made with the nose fairing.
'Motorcycling' magazine, uniquely, it seems, tested a fully faired Executive when it came out...The Biker magazine tested the nose fairing version- both reviewers seemed to like them