Triumphrat

jimmy bush

Ooops! Time for the gurus.
I have a stuck slide (from sitting 15years) on the 68 t-120 I just bought.
I sprayed it with penetrating oil & let set overnight, still stuck, tried wd-40 with same results. Thought I might wedge it up with 2 stir sticks to protect the metal with a screw driver tapped in between them. Still stuck and the bad news is the screwdriver went in further than I thought it was hitting the needle jet that sticks up in the venturi. Are they replaceable? If so where is a good source for one of them and some carb kits to put the carbs back together after soaking them in the carb cleaner if I can get the slide unstuck. Another question.. the left carb has a plug in the center of the bowl below the main jets, the right carb doesn't. Has one carb or the other been changed?
I'll also be looking for the tank grommets, the handle bar grommets & a seat. The one that is on the bike has a cracked pan, the foam is crumbling & the cover is trashed so probably time to change it out. I have a parts & shop manuals for a 70, & a Haynes shop manual for 63 to 70. Should I look for appropriate year or are they mostly the same?

Mecchanica

Yep, time for a couple of gasket kits, a float bowl to match, a couple of float needles with the Viton rubber tips, a pair of needles and needle jets, and slides and springs.
If you have the original carbs, then I would just get a new set. The 68 carbs were not well though of. Get new 930 concentrics WITH CHROME SLIDES. They will outlast the unplated ones by a factor of at least four, are less likely to stick at an inopportune time, and are so nice and smooth to operate that they are a bargain even at about 45 bucks each, or whatever they are selling for now.

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gm16sw

New carbs are the way to go rather than waste time & $ trying to forego what you're probably going to do anyway! At "least", get them re-sleeved. Do not "over-tighten" when mounting onto manifold. JMO!

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GrandPaulZ

$45 for a new concentric? I think you meant $145...

Still, a bargain.

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Mecchanica

Yeah, that was unclear. I meant for the chromed slide. You might be able to order the new carbs WITH the chromed slides, and it would be less, but it's worth it even if you have to buy the slides separately. You might be able to sell off the unused unplated slides.

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Triumph old, Triumph new, any Triumph will do.

htown16

I have pair of Amal Mark I concentric rebuild kits including gaskets and vitron tipped float needles I would be willing to part with; PM me at pburk2003@yahoo.com.