Kubota Z400-B Handbuch Seite 47

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• At start
The steel ball (4) has no centrifugal force.
Fork lever 1 (2) is pulled by the start spring (1) and the
control rod (3) moves to the maximum injection position
for easy starting .
(1) Start Spring
(2) Fork Lever 1
(3) Control Rod
(4) Steel Ball
• At idling
When the speed control lever (2) is set at the idling position,
the governor spring (3) is pulled slightly.
As the camshaft rotates, the steel balls (S) increase their
centrifugal force and push the governor sleeve (7). Fork
lever 1 (4) pushed by the governor sleeve, pushes the control
rod (5) and the control rod compresses the idling adjust
spring (6).
The control rod is kept at a position where the centrifugal
force is balanced with the spring tension on the control rod,
providing stable idling.
(1) Start Spring
(2) Speed Control Lever
(3) Governor Spring
(4) Fork Lever 1
(5) Control Rod
(6) Idling Adjust Spring
(7) Governor Sleeve
(S) Steel Ball