Hi,
This forum is pretty much dedicated to the new Triumph Trophy model, but I used to own a Trophy 3.
If I remember correctly the fuel tap was OFF at the 3 o'clock position, ON at 6 o'clock, and on RESERVE at 12 o'clock,
but you would need to confirm this as I'm not sure.
Haynes do a manual for these earlier Trophy models ( unlike the current model ),
which would be worth getting, or in the meantime see if your local Bike store has one in stock,
which you could go and have a quick browse through to see if I've got it right about the fuel tap !
( It WAS the best part of 10 years ago ).
Assuming you do have fuel reaching the engine ....
If the engine has been cranked over a fair bit ( I presume it has if you've been trying to start it with no joy )
then there's a good chance that the engine is flooded - take the spark plugs out,
and spin the engine over a few times with no throttle and no choke.
Clean, or better still replace, the spark plugs with new ones, rest them on top of the engine with the H.T. leads connected,
and turn the engine over so you can physically see they are sparking, proving the ignition system is working.
Put the plugs back in and try to start the engine - I would give it very little choke if any.
Good luck

