Triumph Thunderbird Service Manual page 273

Fuel System/Engine Management
Adjust Tune Procedure
Throttle Body Balancing
Adjust the throttle balance as described in the service manual until
balanced
Press cancel to cancel the adjustment process
Press OK to finish
Throttles Balanced Throttle status:
1. Remove the left hand side panel (see page 17-9).
2. Connect the diagnostic tool, start the engine and
navigate to 'ADJUST TUNE' (see page 10-22).
3. Select 'BALANCE THROTILES'.
Note:
• The throttles cannot be balanced using
equipment to measure vacuum in each
throttle. Instead, the Triumph diagnostic tool
must be used.
cfhu
Z With the throttle fully closed, ensure that there is
2 - 3 mm of free play in the 'closing' cable at the
throttle cam. If necessary, rotate the adjuster for the
'closing' cable near the twist grip end until 2 - 3 mm
of play is present. Tighten the locknut.
1. Closing cable
2.
Throttle cam
Cylinder 1 MAP Pressure:
Cylinder 2 MAP Pressure:
450mmHg
451 mmHg
Ensure that all the adjuster locknuts of both cables are
tightened, as a loose locknut could result in a sticking
throttle.
An incorrectly adjusted, sticking or stuck throttle can
lead to loss of motorcycle control and an accident.
8. Check that the throttle opens smoothly, without
undue force and that it closes without sticking.
Rectify as necessary.
Operation of the motorcycle with an incorrectly
adjusted, incorrectly routed or damaged throttle cable
could interfere with the operation of the brakes, clutch
or the throttle itself. Any of these conditions could result
in loss of control of the motorcycle and an accident.
, Adjuslling .parametElr - Elalarlce l"hrottles
Balance Throttles Screen
Note:
• The balance throttle screen will show the
vacuum value of each throttle in mm/hg. In
addition, when the throttles are balanced to
an acceptable range of each other the word
'THROTTLES BALANCED' in green text will
appear on the right of the screen. At this
point, no further adjustment is necessary or
productive.
• If the throttles are not balanced to each
other the word 'THROTTLES
UNBALANCED' in red text will appear on
the right of the screen. At this point
adjustment will be necessary.
4. The adjuster is located beneath the throttle bodies,
and is easily accessible from the right hand side of
the motorcycle.
Move the handlebars to left and right full lock while
checking that cables and harnesses do not bind. A cable
or harness that binds will restrict the steering and may
cause loss of control and an accident.
SelVice Manual - Thunderbird
10.109