Note: Rocket III throttles cannot be balanced using equipment to measure vacuum in each throttle. Instead, the Triumph diagnostic tool must be used.
1. Remove the intake cover as described on page 11.98 to allow access to the adjuster screws.
2. Connect the diagnostic tool, start the engine and navigate to "ADJUSTMENTS" as described in section 11.24.
3. Select "balance throttles".
Balance throttles screen
Note: The balance throttle screens 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 'balanced' will appear in the top right hand corner of the screen. At this point, no further adjustment is necessary or productive.
4. Remove the intake plenum chamber (see page 11.107) and make adjustments until the word 'BALANCED' appears in the top right hand corner of the screen. Adjusters are located on each throttle as shown in the diagram below.
1. Adjuster 1; 2. Adjuster 2
5. When balanced, stop the engine, disconnect the diagnostic tool and refit the intake cover as described on page 11.99.