Kubota WG752 E3 Applications Manual page 26

DISTRIBUTOR : (WG752)
The distributor is tamper resistant ; the ignition timing adjustment screw has been covered after adjustment at the
factory. You CAN NOT adjust the ignition timing.
CARBURETOR : (WG752, WG972)
The carburetor is tamper resistant ; the idle mixture screw has been covered by tamper plug after adjustment at
the factory. You CAN NOT adjust this screw.
LPG REGULATOR : (WG752−GL, WG972−GL)
LPG regulator is tamper resistant ; the main and idle pressure adjustment screw have been covered by tamper
caps after adjustment at the factory. You CAN NOT adjust the screws.
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