wsm STW37 Workshop Manual page 134

STW34, STW37, STW40, WSM
Idle Gear
1. Remove the external snap ring.
2. Remove the idle gear collar.
3. Remove the idle gear (2).
(When reassembling)
• Check to see each gear is aligned with its aligning mark.
– Idle gear (2) and crank gear (4)
– Idle gear (2) and camshaft gear (3)
– Idle gear (2) and injection pump gear (1)
(1) Injection Pump Gear
(2) Idle Gear
(3) Camshaft Gear
Camshaft
1. Remove the camshaft set screws (2) and draw out the camshaft
(1).
(When reassembling)
• When installing the idle gear, be sure to align the alignment
marks on gears.
Tightening torque Camshaft set screw
(1) Camshaft
Fuel Camshaft and Fork Lever Assembly
1. Remove the fuel feed pump.
2. Remove the fuel camshaft stopper (1).
3. Remove the three fork lever holder mounting screws (2).
4. Draw out the fuel camshaft assembly (5), (6) and fork lever
assembly (3), (4), (7) at the same time.
(When reassembling)
• After installation, check to see that the fork lever 1 (3) and lever
2 (4) are fixed to the fork lever shaft, and that they can turn
smoothly in the holder (7).
(1) Fuel Camshaft Stopper
(2) Fork Lever Holder Mounting Screw
(3) Fork Lever 1
(4) Fork Lever 2
Oil Pump
1. Remove the nut.
2. Draw out the oil pump drive gear (1) with gear puller (2).
3. Remove the four oil pump mounting screws. Remove the oil
pump (3).
(1) Oil Pump Drive Gear
(2) Gear Puller
1-S55
ENGINE
(4) Crank Gear
(5) Oil Pump Drive Gear
9Y1211109ENS0077US0
24 to 27 N·m
2.4 to 2.8 kgf·m
18 to 20 lbf·ft
(2) Camshaft Set Screw
9Y1211109ENS0078US0
(5) Injection Pump Gear
(6) Fuel Camshaft
(7) Fork Lever Holder
9Y1211109ENS0079US0
(3) Oil Pump
9Y1211109ENS0080US0
KiSC issued 11, 2014 A