Triumph Thunderbird Service Manual page 268

Fuel System/Engine Management
8. Detach the switch cube then release the inner cables
from the twist grip.
1. Opening cable
2. Closing cable
9. Detach the throttle cables from the throttle cable
guide and harness under the fuel tank.
10. Noting their orientation, disconnect the MAP hoses
from the throttle body.
11. Noting their orientation, disconnect the evaporative
return hoses from the throttle body (if fitted).
12. Disconnect the throttle position switch rrpS)
connector, located behind the left hand side panel.
13. Remove the two throttle to cylinder head fixings.
14. Loosen the four throttle body hose clips.
15. Carefully move the throttle body to the rear of the
motorcycle and release from the transition pieces on
the cylinder head.
16. Rotate the throttle body downwards to release it
from the intake duct.
17. Withdraw the throttle body to the right of the
motorcycle, disconnecting the idle speed control
(ISO stepper motor connector as you do so.
18. Remove the throttle body from the motorcycle,
complete with the throttle cables, noting the routing
of the throttle cables, fuel hose and TPS harness.
19. Remove the screws and clamping plates securing
each transition piece to the cylinder head. Recover
the coolant temperature sensor cable guide from the
inner, longer, fixing of cylinder number two.
20.
1. Transition piece
2. O-ring
21. Cover the inlet ports to prevent the ingress of dirt
and other objects.
10.104 SelVice Manual - Thunderbird