Fuel System - Kubota WG972-E2 Workshop Manual

WG972-E2, DF972-E2, WSM

(4) Fuel System

Adjusting Governor
1. Loosen the governor lever nut (3).
2. Set the throttle valve to the fully "OPEN" position with the
governor lever (1), turn the groove on the governor lever shaft (2)
fully clockwise with a screwdriver (to open the governor
completely), and then tighten the nut (3) in this position.
Tightening torque Governor lever nut
■ NOTE
• Insert the governor lever to the position 2 mm (A) away from the
fork lever shaft end.
(1) Governor Lever
(2) Governor Lever Shaft
(3) Governor Lever Nut
Adjusting Engine Speed
1. Warm up the engine at a medium speed for 10 to 15 minutes.
2. Engine speed is adjusted to approx. 1500 min
speed control lever (3).
3. Throttle valve (1) is closed by hand and engine speed is adjusted
with the throttle adjust screw (2) to 1200 min
-1
1300 min (rpm)).
4. Adjust the low-idling speed adjust screw (4) until the engine
speed reaches 1500 min
the speed control lever (3) in the minimum speed position.
5. Adjust the high-idling speed adjust screw (5) until the engine
speed reaches 3850 min
the speed control lever (3) in the maximum speed position.
Lo-idling speed
Factory spec.
Hi-idling speed
(1) Throttle Valve
(2) Throttle Adjust Screw
(3) Speed Control Lever
S-20
GASOLINE / LPG ENGINE
23.5 to 27.5 N·m
2.4 to 2.8 kgf·m
17.4 to 20.2 ft-lbs
A : 2 mm (0.079 in.)
B : Open Direction
-1
-1
(rpm) (1100 to
-1
(rpm) (1400 to 1600 min
-1
(rpm) (3850 to 3950 min
-1
1500 min
(1400 to 1600 min
(rpm))
-1
3850 min
(3850 to 3950 min
(rpm))
(4) Low-idling Adjust Screw
(5) High-idling Adjust Screw
W1036105
(rpm) by the
-1
(rpm)) with
-1
(rpm)) with
(rpm)
-1
(rpm)
-1
W1017430
KiSC issued 01, 2006 A