Kubota WG752 E3 Applications Manual page 27

NATURAL GAS REGULATOR : (DG972)
Natural gas regulator is tamper resistant; idle pressure adjustment screws have been covered by tamper caps
after adjustment at the factory. You CANNOT adjust the screw.
GOVERNOR LEVER (THROTTLE ANGLE) : (Only spec model of specification that limits throttle angle)
The governor lever is tamper resistant; the governor lever adjustment screw has been covered after adjustment
at the factory. You CANNOT adjust the governor lever.
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