Restoring a 1971 Triumph TR6C Trophy Special: Part 1

The inveterate tinkerers at Motorcycle Classics have chosen a Triumph TR6C Trophy Special as their first in-house restoration project.


| January/February 2007


Note: This is part 1 of a 4-part series of articles on the Motorcycle Classics restoration of a 1971 Triumph TR6C Trophy. You can read part 2 here, or go here for part 3 and here for part 4. 

1971 Triumph TR6C Trophy Special Restoration
What we know is wrong
Forks:
Straight but leaking.
Tires: Rock hard from years of sitting.
Engine: Basically sound, mostly needs a good cleaning and new gaskets.
Exhaust: Non-stock two-into-one is blued, dented and rusted.
Wiring: Original loom is tired and frayed.
Bodywork: Mostly good, but desperate for new paint.
Carburetion: The old Amal is worn out.
Shocks: Sagging and leaking, they have to go.
Seat: Looks OK at first glance, but the metal pan is badly rusted.

If you’re under the impression that the staff at the opulent offices of One Motorcycle Classics Towers are just a bunch of ink-stained wretches, you should know that we’re always looking for an excuse to get away from our desks and into our shops. While associate editor Hall squeezes his way through his garage-full of classic Honda motorcycles, editor Backus is forever dinking on some oddball German or Italian motorcycle.

But we’ve found something we’re all interested in working on - a classic Triumph restoration. So for our first in-house restoration project, we'll be working on a 1971 Triumph TR6C Trophy Special.



Our TR6C, the first year of Triumph’s oil-in-frame design, is the spiritual successor to Triumph’s spectacular “Desert Sleds” of the late Fifties and Sixties. High pipes and raised fenders suggest offroad prowess, and Triumph’s legendary 650cc parallel twin provides (or will soon) plenty of oomph to move the bike’s roughly 400lb down the road. A clean, minimalist machine with barely a hint of plastic to be found, there’s simply no denying the bike’s classic British motorcycle appeal.

Our TR6 is pretty typical of what’s available on the open market. Unridden for at least four years, it’s been buried in the back of a woodworking shop. It’s a bit ratty and mildly altered from stock with a two-into-one exhaust and Boyer ignition, but it’s otherwise complete. Wearing rock-hard tires and looking pretty tired in its present state, it appears to have good compression and ran the last time anyone tried. It is, in other words, a perfect candidate for rejuvenation.

GARYS
8/27/2014 9:29:50 AM

They said they were looking for Whitworth sockets. Whitworth isn't used on a 1971 Triumph.








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