Beta Motorcycles X Trainer 300 2T 2015 Workshop Manual page 87

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Fixing of booster bearings resonance chamber side.
Extraction of booster.
Remove screw3 fixing the bearings, located on
the resonance chamber side.
Note: Should it be necessary to descale the valve
unit, remove the screws 2 and 3 and extract the
booster, without removing the valve control unit.
Tighten one M5 screw to the booster control unit
side and pull externally. Use a pair of pliers or
similar tool if required.
Repeat the operation with the booster on reso-
nance chamber side, using one M6 screw.
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